From 7ad6623a4980caa053eb9eb3207e0c3ba7d4ed4d Mon Sep 17 00:00:00 2001
From: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Date: Thu, 27 Sep 2012 16:52:17 +0530
Subject: OMAPDSS: Move definition of DEBUG flag to Makefile

In OMAPDSS the DEBUG flag is set only after the OMAPDSS module is called, for
which the debugging capabilities are available only after its proper
initialization. As a result of which tracking of bugs prior to or during initial
process becomes difficult. So, the definition of DEBUG is being moved to the
corresponding Makefile.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Reviewed-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile | 1 +
 drivers/video/omap2/dss/dss.h    | 4 ----
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index 4549869bfe1..86493e3dd65 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -8,3 +8,4 @@ omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
 omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
 omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o \
 				    hdmi_panel.o ti_hdmi_4xxx_ip.o
+ccflags-$(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) += -DDEBUG
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 6728892f9da..ffbba7e994e 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -23,10 +23,6 @@
 #ifndef __OMAP2_DSS_H
 #define __OMAP2_DSS_H
 
-#ifdef CONFIG_OMAP2_DSS_DEBUG_SUPPORT
-#define DEBUG
-#endif
-
 #ifdef DEBUG
 extern bool dss_debug;
 #ifdef DSS_SUBSYS_NAME
-- 
cgit v1.2.3


From 1b3bcb33fb9faeab29e5c734fa000f6c7746ea1c Mon Sep 17 00:00:00 2001
From: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Date: Sat, 29 Sep 2012 11:25:42 +0530
Subject: OMAPDSS: Create new debug config options

The config option CONFIG_OMAP2_DSS_DEBUG_SUPPORT has been removed and replaced
with CONFIG_OMAP2_DSS_DEBUG and CONFIG_OMAP2_DSS_DEBUGFS. CONFIG_OMAP2_DSS_DEBUG
enables DEBUG flag and CONFIG_OMAP2_DSS_DEBUGFS enables creation of debugfs for
OMAPDSS. Both the config options are disabled by default and can be enabled
independently of one another as per convenience.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Reviewed-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Kconfig  | 22 ++++++++++++++++------
 drivers/video/omap2/dss/Makefile |  2 +-
 drivers/video/omap2/dss/core.c   |  6 +++---
 drivers/video/omap2/dss/dss.c    |  2 +-
 drivers/video/omap2/dss/dss.h    |  2 +-
 5 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig
index 80f5390aa13..7052487495c 100644
--- a/drivers/video/omap2/dss/Kconfig
+++ b/drivers/video/omap2/dss/Kconfig
@@ -18,16 +18,26 @@ config OMAP2_VRAM_SIZE
 	  You can also set this with "vram=<bytes>" kernel argument, or
 	  in the board file.
 
-config OMAP2_DSS_DEBUG_SUPPORT
-        bool "Debug support"
-	default y
+config OMAP2_DSS_DEBUG
+	bool "Debug support"
+	default n
+	help
+	  This enables printing of debug messages. Alternatively, debug messages
+	  can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting
+	  appropriate flags in <debugfs>/dynamic_debug/control.
+
+config OMAP2_DSS_DEBUGFS
+	bool "Debugfs filesystem support"
+	depends on DEBUG_FS
+	default n
 	help
-	  This enables debug messages. You need to enable printing
-	  with 'debug' module parameter.
+	  This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables
+	  querying about clock configuration and register configuration of dss,
+	  dispc, dsi, hdmi and rfbi.
 
 config OMAP2_DSS_COLLECT_IRQ_STATS
 	bool "Collect DSS IRQ statistics"
-	depends on OMAP2_DSS_DEBUG_SUPPORT
+	depends on OMAP2_DSS_DEBUGFS
 	default n
 	help
 	  Collect DSS IRQ statistics, printable via debugfs.
diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index 86493e3dd65..40701910f73 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -8,4 +8,4 @@ omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
 omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
 omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o \
 				    hdmi_panel.o ti_hdmi_4xxx_ip.o
-ccflags-$(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) += -DDEBUG
+ccflags-$(CONFIG_OMAP2_DSS_DEBUG) += -DDEBUG
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index b2af72dc20b..826d64faeaa 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -138,7 +138,7 @@ int dss_set_min_bus_tput(struct device *dev, unsigned long tput)
 		return 0;
 }
 
-#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
+#if defined(CONFIG_OMAP2_DSS_DEBUGFS)
 static int dss_debug_show(struct seq_file *s, void *unused)
 {
 	void (*func)(struct seq_file *) = s->private;
@@ -193,7 +193,7 @@ int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
 
 	return 0;
 }
-#else /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */
+#else /* CONFIG_OMAP2_DSS_DEBUGFS */
 static inline int dss_initialize_debugfs(void)
 {
 	return 0;
@@ -205,7 +205,7 @@ int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
 {
 	return 0;
 }
-#endif /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */
+#endif /* CONFIG_OMAP2_DSS_DEBUGFS */
 
 /* PLATFORM DEVICE */
 static int omap_dss_pm_notif(struct notifier_block *b, unsigned long v, void *d)
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 2ab1c3e9655..3954742d46d 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -746,7 +746,7 @@ static void dss_runtime_put(void)
 }
 
 /* DEBUGFS */
-#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
+#if defined(CONFIG_OMAP2_DSS_DEBUGFS)
 void dss_debug_dump_clocks(struct seq_file *s)
 {
 	dss_dump_clocks(s);
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index ffbba7e994e..685275e0bed 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -301,7 +301,7 @@ enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
 const char *dss_get_generic_clk_source_name(enum omap_dss_clk_source clk_src);
 void dss_dump_clocks(struct seq_file *s);
 
-#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
+#if defined(CONFIG_OMAP2_DSS_DEBUGFS)
 void dss_debug_dump_clocks(struct seq_file *s);
 #endif
 
-- 
cgit v1.2.3


From 702d267eb8ec66e1b2cde9448fc5960315ed8662 Mon Sep 17 00:00:00 2001
From: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Date: Mon, 24 Sep 2012 17:12:58 +0530
Subject: OMAPDSS: Cleanup DSSDBG with dynamic pr_debug function

The printk in DSSDBG function definition is replaced with dynamic debug enabled
pr_debug(). The use of dynamic debugging provides more flexibility as each debug
statement can be enabled or disabled dynamically on basis of source filename,
line number, module name etc., by writing to a control file in debugfs
filesystem. For better understanding please refer to
Documentation/dynamic-debug-howto.txt.

The DSSDBGF() differs from DSSDBG() by providing function name. However,
function name, line number, module name and thread ID can be printed through
dynamic debug by setting appropriate flags 'f','l','m' and 't' in the debugfs
control file. So, DSSDBGF instances are replaced with DSSDBG.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Reviewed-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c |  8 ++++----
 drivers/video/omap2/dss/dsi.c   | 12 ++++++------
 drivers/video/omap2/dss/dss.h   | 34 ++++++++--------------------------
 3 files changed, 18 insertions(+), 36 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 19d66f471b4..e923d9f90ee 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -573,7 +573,7 @@ static void dss_ovl_write_regs(struct omap_overlay *ovl)
 	struct mgr_priv_data *mp;
 	int r;
 
-	DSSDBGF("%d", ovl->id);
+	DSSDBG("writing ovl %d regs", ovl->id);
 
 	if (!op->enabled || !op->info_dirty)
 		return;
@@ -608,7 +608,7 @@ static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
 	struct mgr_priv_data *mp;
 
-	DSSDBGF("%d", ovl->id);
+	DSSDBG("writing ovl %d regs extra", ovl->id);
 
 	if (!op->extra_info_dirty)
 		return;
@@ -632,7 +632,7 @@ static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	struct omap_overlay *ovl;
 
-	DSSDBGF("%d", mgr->id);
+	DSSDBG("writing mgr %d regs", mgr->id);
 
 	if (!mp->enabled)
 		return;
@@ -658,7 +658,7 @@ static void dss_mgr_write_regs_extra(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 
-	DSSDBGF("%d", mgr->id);
+	DSSDBG("writing mgr %d regs extra", mgr->id);
 
 	if (!mp->extra_info_dirty)
 		return;
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index e37e6d868ac..b0345f3ac90 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1612,7 +1612,7 @@ int dsi_pll_set_clock_div(struct platform_device *dsidev,
 	u8 regn_start, regn_end, regm_start, regm_end;
 	u8 regm_dispc_start, regm_dispc_end, regm_dsi_start, regm_dsi_end;
 
-	DSSDBGF();
+	DSSDBG("DSI PLL clock config starts");
 
 	dsi->current_cinfo.clkin = cinfo->clkin;
 	dsi->current_cinfo.fint = cinfo->fint;
@@ -2431,7 +2431,7 @@ static int dsi_cio_init(struct platform_device *dsidev)
 	int r;
 	u32 l;
 
-	DSSDBGF();
+	DSSDBG("DSI CIO init starts");
 
 	r = dss_dsi_enable_pads(dsi->module_id, dsi_get_lane_mask(dsidev));
 	if (r)
@@ -2782,7 +2782,7 @@ static void dsi_vc_initial_config(struct platform_device *dsidev, int channel)
 {
 	u32 r;
 
-	DSSDBGF("%d", channel);
+	DSSDBG("Initial config of virtual channel %d", channel);
 
 	r = dsi_read_reg(dsidev, DSI_VC_CTRL(channel));
 
@@ -2814,7 +2814,7 @@ static int dsi_vc_config_source(struct platform_device *dsidev, int channel,
 	if (dsi->vc[channel].source == source)
 		return 0;
 
-	DSSDBGF("%d", channel);
+	DSSDBG("Source config of virtual channel %d", channel);
 
 	dsi_sync_vc(dsidev, channel);
 
@@ -3572,7 +3572,7 @@ static int dsi_enter_ulps(struct platform_device *dsidev)
 	int r, i;
 	unsigned mask;
 
-	DSSDBGF();
+	DSSDBG("Entering ULPS");
 
 	WARN_ON(!dsi_bus_is_locked(dsidev));
 
@@ -4276,7 +4276,7 @@ int omapdss_dsi_set_clocks(struct omap_dss_device *dssdev,
 	unsigned long pck;
 	int r;
 
-	DSSDBGF("ddr_clk %lu, lp_clk %lu", ddr_clk, lp_clk);
+	DSSDBG("Setting DSI clocks: ddr_clk %lu, lp_clk %lu", ddr_clk, lp_clk);
 
 	mutex_lock(&dsi->lock);
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 685275e0bed..d8aeee49825 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -25,38 +25,20 @@
 
 #ifdef DEBUG
 extern bool dss_debug;
-#ifdef DSS_SUBSYS_NAME
-#define DSSDBG(format, ...) \
-	if (dss_debug) \
-		printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME ": " format, \
-		## __VA_ARGS__)
-#else
-#define DSSDBG(format, ...) \
-	if (dss_debug) \
-		printk(KERN_DEBUG "omapdss: " format, ## __VA_ARGS__)
 #endif
 
-#ifdef DSS_SUBSYS_NAME
-#define DSSDBGF(format, ...) \
-	if (dss_debug) \
-		printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME \
-				": %s(" format ")\n", \
-				__func__, \
-				## __VA_ARGS__)
-#else
-#define DSSDBGF(format, ...) \
-	if (dss_debug) \
-		printk(KERN_DEBUG "omapdss: " \
-				": %s(" format ")\n", \
-				__func__, \
-				## __VA_ARGS__)
+#ifdef pr_fmt
+#undef pr_fmt
 #endif
 
-#else /* DEBUG */
-#define DSSDBG(format, ...)
-#define DSSDBGF(format, ...)
+#ifdef DSS_SUBSYS_NAME
+#define pr_fmt(fmt) DSS_SUBSYS_NAME ": " fmt
+#else
+#define pr_fmt(fmt) fmt
 #endif
 
+#define DSSDBG(format, ...) \
+	pr_debug(format, ## __VA_ARGS__)
 
 #ifdef DSS_SUBSYS_NAME
 #define DSSERR(format, ...) \
-- 
cgit v1.2.3


From f30be7d326671ec5691f83b6d473550ac002e008 Mon Sep 17 00:00:00 2001
From: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Date: Sat, 29 Sep 2012 12:33:05 +0530
Subject: OMAPDSS: Replace multi part debug prints with pr_debug

The various functions in dispc and dsi such as print_irq_status(),
print_irq_status_vc(), print_irq_status_cio() and _dsi_print_reset_status()
consist of a number of debug prints which need to be enabled all at once or none
at all. So, these debug prints in corresponding functions are replaced with one
dynamic debug enabled pr_debug() each.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Reviewed-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c |  32 ++++----
 drivers/video/omap2/dss/dsi.c   | 168 ++++++++++++++++++----------------------
 2 files changed, 90 insertions(+), 110 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index a173a9481a2..67d9f3bdea3 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3675,26 +3675,20 @@ static void print_irq_status(u32 status)
 	if ((status & dispc.irq_error_mask) == 0)
 		return;
 
-	printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status);
-
-#define PIS(x) \
-	if (status & DISPC_IRQ_##x) \
-		printk(#x " ");
-	PIS(GFX_FIFO_UNDERFLOW);
-	PIS(OCP_ERR);
-	PIS(VID1_FIFO_UNDERFLOW);
-	PIS(VID2_FIFO_UNDERFLOW);
-	if (dss_feat_get_num_ovls() > 3)
-		PIS(VID3_FIFO_UNDERFLOW);
-	PIS(SYNC_LOST);
-	PIS(SYNC_LOST_DIGIT);
-	if (dss_has_feature(FEAT_MGR_LCD2))
-		PIS(SYNC_LOST2);
-	if (dss_has_feature(FEAT_MGR_LCD3))
-		PIS(SYNC_LOST3);
+#define PIS(x) (status & DISPC_IRQ_##x) ? (#x " ") : ""
+
+	pr_debug("DISPC IRQ: 0x%x: %s%s%s%s%s%s%s%s%s\n",
+		status,
+		PIS(OCP_ERR),
+		PIS(GFX_FIFO_UNDERFLOW),
+		PIS(VID1_FIFO_UNDERFLOW),
+		PIS(VID2_FIFO_UNDERFLOW),
+		dss_feat_get_num_ovls() > 3 ? PIS(VID3_FIFO_UNDERFLOW) : "",
+		PIS(SYNC_LOST),
+		PIS(SYNC_LOST_DIGIT),
+		dss_has_feature(FEAT_MGR_LCD2) ? PIS(SYNC_LOST2) : "",
+		dss_has_feature(FEAT_MGR_LCD3) ? PIS(SYNC_LOST3) : "");
 #undef PIS
-
-	printk("\n");
 }
 #endif
 
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index b0345f3ac90..19daee9fd30 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -45,7 +45,6 @@
 #include "dss.h"
 #include "dss_features.h"
 
-/*#define VERBOSE_IRQ*/
 #define DSI_CATCH_MISSING_TE
 
 struct dsi_reg { u16 idx; };
@@ -526,42 +525,38 @@ static inline void dsi_perf_show(struct platform_device *dsidev,
 }
 #endif
 
+static int verbose_irq;
+
 static void print_irq_status(u32 status)
 {
 	if (status == 0)
 		return;
 
-#ifndef VERBOSE_IRQ
-	if ((status & ~DSI_IRQ_CHANNEL_MASK) == 0)
+	if (!verbose_irq && (status & ~DSI_IRQ_CHANNEL_MASK) == 0)
 		return;
-#endif
-	printk(KERN_DEBUG "DSI IRQ: 0x%x: ", status);
 
-#define PIS(x) \
-	if (status & DSI_IRQ_##x) \
-		printk(#x " ");
-#ifdef VERBOSE_IRQ
-	PIS(VC0);
-	PIS(VC1);
-	PIS(VC2);
-	PIS(VC3);
-#endif
-	PIS(WAKEUP);
-	PIS(RESYNC);
-	PIS(PLL_LOCK);
-	PIS(PLL_UNLOCK);
-	PIS(PLL_RECALL);
-	PIS(COMPLEXIO_ERR);
-	PIS(HS_TX_TIMEOUT);
-	PIS(LP_RX_TIMEOUT);
-	PIS(TE_TRIGGER);
-	PIS(ACK_TRIGGER);
-	PIS(SYNC_LOST);
-	PIS(LDO_POWER_GOOD);
-	PIS(TA_TIMEOUT);
+#define PIS(x) (status & DSI_IRQ_##x) ? (#x " ") : ""
+
+	pr_debug("DSI IRQ: 0x%x: %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
+		status,
+		verbose_irq ? PIS(VC0) : "",
+		verbose_irq ? PIS(VC1) : "",
+		verbose_irq ? PIS(VC2) : "",
+		verbose_irq ? PIS(VC3) : "",
+		PIS(WAKEUP),
+		PIS(RESYNC),
+		PIS(PLL_LOCK),
+		PIS(PLL_UNLOCK),
+		PIS(PLL_RECALL),
+		PIS(COMPLEXIO_ERR),
+		PIS(HS_TX_TIMEOUT),
+		PIS(LP_RX_TIMEOUT),
+		PIS(TE_TRIGGER),
+		PIS(ACK_TRIGGER),
+		PIS(SYNC_LOST),
+		PIS(LDO_POWER_GOOD),
+		PIS(TA_TIMEOUT));
 #undef PIS
-
-	printk("\n");
 }
 
 static void print_irq_status_vc(int channel, u32 status)
@@ -569,28 +564,24 @@ static void print_irq_status_vc(int channel, u32 status)
 	if (status == 0)
 		return;
 
-#ifndef VERBOSE_IRQ
-	if ((status & ~DSI_VC_IRQ_PACKET_SENT) == 0)
+	if (!verbose_irq && (status & ~DSI_VC_IRQ_PACKET_SENT) == 0)
 		return;
-#endif
-	printk(KERN_DEBUG "DSI VC(%d) IRQ 0x%x: ", channel, status);
 
-#define PIS(x) \
-	if (status & DSI_VC_IRQ_##x) \
-		printk(#x " ");
-	PIS(CS);
-	PIS(ECC_CORR);
-#ifdef VERBOSE_IRQ
-	PIS(PACKET_SENT);
-#endif
-	PIS(FIFO_TX_OVF);
-	PIS(FIFO_RX_OVF);
-	PIS(BTA);
-	PIS(ECC_NO_CORR);
-	PIS(FIFO_TX_UDF);
-	PIS(PP_BUSY_CHANGE);
+#define PIS(x) (status & DSI_VC_IRQ_##x) ? (#x " ") : ""
+
+	pr_debug("DSI VC(%d) IRQ 0x%x: %s%s%s%s%s%s%s%s%s\n",
+		channel,
+		status,
+		PIS(CS),
+		PIS(ECC_CORR),
+		PIS(ECC_NO_CORR),
+		verbose_irq ? PIS(PACKET_SENT) : "",
+		PIS(BTA),
+		PIS(FIFO_TX_OVF),
+		PIS(FIFO_RX_OVF),
+		PIS(FIFO_TX_UDF),
+		PIS(PP_BUSY_CHANGE));
 #undef PIS
-	printk("\n");
 }
 
 static void print_irq_status_cio(u32 status)
@@ -598,34 +589,31 @@ static void print_irq_status_cio(u32 status)
 	if (status == 0)
 		return;
 
-	printk(KERN_DEBUG "DSI CIO IRQ 0x%x: ", status);
-
-#define PIS(x) \
-	if (status & DSI_CIO_IRQ_##x) \
-		printk(#x " ");
-	PIS(ERRSYNCESC1);
-	PIS(ERRSYNCESC2);
-	PIS(ERRSYNCESC3);
-	PIS(ERRESC1);
-	PIS(ERRESC2);
-	PIS(ERRESC3);
-	PIS(ERRCONTROL1);
-	PIS(ERRCONTROL2);
-	PIS(ERRCONTROL3);
-	PIS(STATEULPS1);
-	PIS(STATEULPS2);
-	PIS(STATEULPS3);
-	PIS(ERRCONTENTIONLP0_1);
-	PIS(ERRCONTENTIONLP1_1);
-	PIS(ERRCONTENTIONLP0_2);
-	PIS(ERRCONTENTIONLP1_2);
-	PIS(ERRCONTENTIONLP0_3);
-	PIS(ERRCONTENTIONLP1_3);
-	PIS(ULPSACTIVENOT_ALL0);
-	PIS(ULPSACTIVENOT_ALL1);
+#define PIS(x) (status & DSI_CIO_IRQ_##x) ? (#x " ") : ""
+
+	pr_debug("DSI CIO IRQ 0x%x: %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
+		status,
+		PIS(ERRSYNCESC1),
+		PIS(ERRSYNCESC2),
+		PIS(ERRSYNCESC3),
+		PIS(ERRESC1),
+		PIS(ERRESC2),
+		PIS(ERRESC3),
+		PIS(ERRCONTROL1),
+		PIS(ERRCONTROL2),
+		PIS(ERRCONTROL3),
+		PIS(STATEULPS1),
+		PIS(STATEULPS2),
+		PIS(STATEULPS3),
+		PIS(ERRCONTENTIONLP0_1),
+		PIS(ERRCONTENTIONLP1_1),
+		PIS(ERRCONTENTIONLP0_2),
+		PIS(ERRCONTENTIONLP1_2),
+		PIS(ERRCONTENTIONLP0_3),
+		PIS(ERRCONTENTIONLP1_3),
+		PIS(ULPSACTIVENOT_ALL0),
+		PIS(ULPSACTIVENOT_ALL1));
 #undef PIS
-
-	printk("\n");
 }
 
 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
@@ -1121,14 +1109,6 @@ static void _dsi_print_reset_status(struct platform_device *dsidev)
 	 * I/O. */
 	l = dsi_read_reg(dsidev, DSI_DSIPHY_CFG5);
 
-	printk(KERN_DEBUG "DSI resets: ");
-
-	l = dsi_read_reg(dsidev, DSI_PLL_STATUS);
-	printk("PLL (%d) ", FLD_GET(l, 0, 0));
-
-	l = dsi_read_reg(dsidev, DSI_COMPLEXIO_CFG1);
-	printk("CIO (%d) ", FLD_GET(l, 29, 29));
-
 	if (dss_has_feature(FEAT_DSI_REVERSE_TXCLKESC)) {
 		b0 = 28;
 		b1 = 27;
@@ -1139,14 +1119,20 @@ static void _dsi_print_reset_status(struct platform_device *dsidev)
 		b2 = 26;
 	}
 
-	l = dsi_read_reg(dsidev, DSI_DSIPHY_CFG5);
-	printk("PHY (%x%x%x, %d, %d, %d)\n",
-			FLD_GET(l, b0, b0),
-			FLD_GET(l, b1, b1),
-			FLD_GET(l, b2, b2),
-			FLD_GET(l, 29, 29),
-			FLD_GET(l, 30, 30),
-			FLD_GET(l, 31, 31));
+#define DSI_FLD_GET(fld, start, end)\
+	FLD_GET(dsi_read_reg(dsidev, DSI_##fld), start, end)
+
+	pr_debug("DSI resets: PLL (%d) CIO (%d) PHY (%x%x%x, %d, %d, %d)\n",
+		DSI_FLD_GET(PLL_STATUS, 0, 0),
+		DSI_FLD_GET(COMPLEXIO_CFG1, 29, 29),
+		DSI_FLD_GET(DSIPHY_CFG5, b0, b0),
+		DSI_FLD_GET(DSIPHY_CFG5, b1, b1),
+		DSI_FLD_GET(DSIPHY_CFG5, b2, b2),
+		DSI_FLD_GET(DSIPHY_CFG5, 29, 29),
+		DSI_FLD_GET(DSIPHY_CFG5, 30, 30),
+		DSI_FLD_GET(DSIPHY_CFG5, 31, 31));
+
+#undef DSI_FLD_GET
 }
 #else
 #define _dsi_print_reset_status(x)
-- 
cgit v1.2.3


From 28bcd199cc4465733c1ac0c70135a385fff97c71 Mon Sep 17 00:00:00 2001
From: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Date: Sat, 29 Sep 2012 13:57:31 +0530
Subject: OMAPDSS: Remove dss_debug variable

All the debug prints have been replaced with pr_debug(). Thus, the dependency on
dss_debug variable is replaced with dyndbg in dynamic debugging mode and DEBUG
flag otherwise. So, the dss_debug variable is removed along with checks for
DEBUG flag.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Reviewed-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/core.c  | 5 -----
 drivers/video/omap2/dss/dispc.c | 8 ++------
 drivers/video/omap2/dss/dsi.c   | 7 -------
 drivers/video/omap2/dss/dss.h   | 4 ----
 4 files changed, 2 insertions(+), 22 deletions(-)

diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 826d64faeaa..3794147b6eb 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -53,11 +53,6 @@ static char *def_disp_name;
 module_param_named(def_disp, def_disp_name, charp, 0);
 MODULE_PARM_DESC(def_disp, "default display name");
 
-#ifdef DEBUG
-bool dss_debug;
-module_param_named(debug, dss_debug, bool, 0644);
-#endif
-
 const char *dss_get_default_display_name(void)
 {
 	return core.default_display_name;
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 67d9f3bdea3..b5204b490ce 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3669,7 +3669,6 @@ int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
 }
 EXPORT_SYMBOL(omap_dispc_unregister_isr);
 
-#ifdef DEBUG
 static void print_irq_status(u32 status)
 {
 	if ((status & dispc.irq_error_mask) == 0)
@@ -3690,7 +3689,6 @@ static void print_irq_status(u32 status)
 		dss_has_feature(FEAT_MGR_LCD3) ? PIS(SYNC_LOST3) : "");
 #undef PIS
 }
-#endif
 
 /* Called from dss.c. Note that we don't touch clocks here,
  * but we presume they are on because we got an IRQ. However,
@@ -3723,10 +3721,8 @@ static irqreturn_t omap_dispc_irq_handler(int irq, void *arg)
 	spin_unlock(&dispc.irq_stats_lock);
 #endif
 
-#ifdef DEBUG
-	if (dss_debug)
-		print_irq_status(irqstatus);
-#endif
+	print_irq_status(irqstatus);
+
 	/* Ack the interrupt. Do it here before clocks are possibly turned
 	 * off */
 	dispc_write_reg(DISPC_IRQSTATUS, irqstatus);
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 19daee9fd30..bbbafe37057 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1095,15 +1095,11 @@ static inline void dsi_enable_pll_clock(struct platform_device *dsidev,
 	}
 }
 
-#ifdef DEBUG
 static void _dsi_print_reset_status(struct platform_device *dsidev)
 {
 	u32 l;
 	int b0, b1, b2;
 
-	if (!dss_debug)
-		return;
-
 	/* A dummy read using the SCP interface to any DSIPHY register is
 	 * required after DSIPHY reset to complete the reset of the DSI complex
 	 * I/O. */
@@ -1134,9 +1130,6 @@ static void _dsi_print_reset_status(struct platform_device *dsidev)
 
 #undef DSI_FLD_GET
 }
-#else
-#define _dsi_print_reset_status(x)
-#endif
 
 static inline int dsi_if_enable(struct platform_device *dsidev, bool enable)
 {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index d8aeee49825..75f841a4a1e 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -23,10 +23,6 @@
 #ifndef __OMAP2_DSS_H
 #define __OMAP2_DSS_H
 
-#ifdef DEBUG
-extern bool dss_debug;
-#endif
-
 #ifdef pr_fmt
 #undef pr_fmt
 #endif
-- 
cgit v1.2.3


From acd18af93ad3b99e6769b917fe5b549dc1bfc468 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 28 Sep 2012 12:42:28 +0300
Subject: OMAPDSS: add omapdss_version

Add new enum, omapdss_version, that is used to tell which DSS hardware
version the SoC has. This enum is initialized during platform init, and
passed in the platform data to omapdss driver.

Note that the versions are not "continuous", that is, you cannot check
if the version is less or greater than something, but you need to check
for exact version match. In other words, this is invalid:

/* test if DSS is 3630 or earlier */
if (ver <= OMAPDSS_VER_OMAP3630)
	...

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/mach-omap2/display.c | 38 ++++++++++++++++++++++++++++++++++++++
 include/video/omapdss.h       | 14 ++++++++++++++
 2 files changed, 52 insertions(+)

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 1011995f150..28f508724a5 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -284,6 +284,35 @@ err:
 	return ERR_PTR(r);
 }
 
+static enum omapdss_version __init omap_display_get_version(void)
+{
+	if (cpu_is_omap24xx())
+		return OMAPDSS_VER_OMAP24xx;
+	else if (cpu_is_omap3630())
+		return OMAPDSS_VER_OMAP3630;
+	else if (cpu_is_omap34xx()) {
+		if (soc_is_am35xx()) {
+			return OMAPDSS_VER_AM35xx;
+		} else {
+			if (omap_rev() < OMAP3430_REV_ES3_0)
+				return OMAPDSS_VER_OMAP34xx_ES1;
+			else
+				return OMAPDSS_VER_OMAP34xx_ES3;
+		}
+	} else if (omap_rev() == OMAP4430_REV_ES1_0)
+		return OMAPDSS_VER_OMAP4430_ES1;
+	else if (omap_rev() == OMAP4430_REV_ES2_0 ||
+			omap_rev() == OMAP4430_REV_ES2_1 ||
+			omap_rev() == OMAP4430_REV_ES2_2)
+		return OMAPDSS_VER_OMAP4430_ES2;
+	else if (cpu_is_omap44xx())
+		return OMAPDSS_VER_OMAP4;
+	else if (soc_is_omap54xx())
+		return OMAPDSS_VER_OMAP5;
+	else
+		return OMAPDSS_VER_UNKNOWN;
+}
+
 int __init omap_display_init(struct omap_dss_board_info *board_data)
 {
 	int r = 0;
@@ -291,9 +320,18 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
 	int i, oh_count;
 	const struct omap_dss_hwmod_data *curr_dss_hwmod;
 	struct platform_device *dss_pdev;
+	enum omapdss_version ver;
 
 	/* create omapdss device */
 
+	ver = omap_display_get_version();
+
+	if (ver == OMAPDSS_VER_UNKNOWN) {
+		pr_err("DSS not supported on this SoC\n");
+		return -ENODEV;
+	}
+
+	board_data->version = ver;
 	board_data->dsi_enable_pads = omap_dsi_enable_pads;
 	board_data->dsi_disable_pads = omap_dsi_disable_pads;
 	board_data->get_context_loss_count = omap_pm_get_dev_context_loss_count;
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 3729173b7fb..88c829466fc 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -314,6 +314,19 @@ int dsi_vc_send_bta_sync(struct omap_dss_device *dssdev, int channel);
 int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel);
 void dsi_disable_video_output(struct omap_dss_device *dssdev, int channel);
 
+enum omapdss_version {
+	OMAPDSS_VER_UNKNOWN = 0,
+	OMAPDSS_VER_OMAP24xx,
+	OMAPDSS_VER_OMAP34xx_ES1,	/* OMAP3430 ES1.0, 2.0 */
+	OMAPDSS_VER_OMAP34xx_ES3,	/* OMAP3430 ES3.0+ */
+	OMAPDSS_VER_OMAP3630,
+	OMAPDSS_VER_AM35xx,
+	OMAPDSS_VER_OMAP4430_ES1,	/* OMAP4430 ES1.0 */
+	OMAPDSS_VER_OMAP4430_ES2,	/* OMAP4430 ES2.0, 2.1, 2.2 */
+	OMAPDSS_VER_OMAP4,		/* All other OMAP4s */
+	OMAPDSS_VER_OMAP5,
+};
+
 /* Board specific data */
 struct omap_dss_board_info {
 	int (*get_context_loss_count)(struct device *dev);
@@ -323,6 +336,7 @@ struct omap_dss_board_info {
 	int (*dsi_enable_pads)(int dsi_id, unsigned lane_mask);
 	void (*dsi_disable_pads)(int dsi_id, unsigned lane_mask);
 	int (*set_min_bus_tput)(struct device *dev, unsigned long r);
+	enum omapdss_version version;
 };
 
 /* Init with the board info */
-- 
cgit v1.2.3


From 649514c65cdca0102093a0e85b587b3f5a8d8c42 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 28 Sep 2012 12:46:49 +0300
Subject: OMAPDSS: use omapdss_version in dss_features.c

Pass the omapdss_version to dss_features.c and use it to select the
proper dss features.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/core.c         |  2 +-
 drivers/video/omap2/dss/dss_features.c | 49 ++++++++++++++++++++++------------
 drivers/video/omap2/dss/dss_features.h |  2 +-
 3 files changed, 34 insertions(+), 19 deletions(-)

diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index b2af72dc20b..d94ef9e31a3 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -237,7 +237,7 @@ static int __init omap_dss_probe(struct platform_device *pdev)
 
 	core.pdev = pdev;
 
-	dss_features_init();
+	dss_features_init(pdata->version);
 
 	dss_apply_init();
 
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index acbc1e1efba..5936ba78c14 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -929,29 +929,44 @@ bool dss_feat_rotation_type_supported(enum omap_dss_rotation_type rot_type)
 	return omap_current_dss_features->supported_rotation_types & rot_type;
 }
 
-void dss_features_init(void)
+void dss_features_init(enum omapdss_version version)
 {
-	if (cpu_is_omap24xx())
+	switch (version) {
+	case OMAPDSS_VER_OMAP24xx:
 		omap_current_dss_features = &omap2_dss_features;
-	else if (cpu_is_omap3630())
+		break;
+
+	case OMAPDSS_VER_OMAP34xx_ES1:
+	case OMAPDSS_VER_OMAP34xx_ES3:
+		omap_current_dss_features = &omap3430_dss_features;
+		break;
+
+	case OMAPDSS_VER_OMAP3630:
 		omap_current_dss_features = &omap3630_dss_features;
-	else if (cpu_is_omap34xx()) {
-		if (soc_is_am35xx()) {
-			omap_current_dss_features = &am35xx_dss_features;
-		} else {
-			omap_current_dss_features = &omap3430_dss_features;
-		}
-	}
-	else if (omap_rev() == OMAP4430_REV_ES1_0)
+		break;
+
+	case OMAPDSS_VER_OMAP4430_ES1:
 		omap_current_dss_features = &omap4430_es1_0_dss_features;
-	else if (omap_rev() == OMAP4430_REV_ES2_0 ||
-		omap_rev() == OMAP4430_REV_ES2_1 ||
-		omap_rev() == OMAP4430_REV_ES2_2)
+		break;
+
+	case OMAPDSS_VER_OMAP4430_ES2:
 		omap_current_dss_features = &omap4430_es2_0_1_2_dss_features;
-	else if (cpu_is_omap44xx())
+		break;
+
+	case OMAPDSS_VER_OMAP4:
 		omap_current_dss_features = &omap4_dss_features;
-	else if (soc_is_omap54xx())
+		break;
+
+	case OMAPDSS_VER_OMAP5:
 		omap_current_dss_features = &omap5_dss_features;
-	else
+		break;
+
+	case OMAPDSS_VER_AM35xx:
+		omap_current_dss_features = &am35xx_dss_features;
+		break;
+
+	default:
 		DSSWARN("Unsupported OMAP version");
+		break;
+	}
 }
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index 9218113b5e8..14a412ea8dc 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -123,7 +123,7 @@ bool dss_feat_rotation_type_supported(enum omap_dss_rotation_type rot_type);
 
 bool dss_has_feature(enum dss_feat_id id);
 void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end);
-void dss_features_init(void);
+void dss_features_init(enum omapdss_version version);
 #if defined(CONFIG_OMAP4_DSS_HDMI)
 void dss_init_hdmi_ip_ops(struct hdmi_ip_data *ip_data);
 #endif
-- 
cgit v1.2.3


From 84b4762302cda5c1b19a9628acc3ef90db948dff Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 28 Sep 2012 12:54:03 +0300
Subject: OMAPDSS: DISPC: use omapdss_version

Use omapdss_version in dispc.c to select the proper dispc features.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 41 ++++++++++++++++++++++++++++-------------
 1 file changed, 28 insertions(+), 13 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index b43477a5fae..d30e5fa1864 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -4042,29 +4042,44 @@ static const struct dispc_features omap44xx_dispc_feats __initconst = {
 	.gfx_fifo_workaround	=	true,
 };
 
-static int __init dispc_init_features(struct device *dev)
+static int __init dispc_init_features(struct platform_device *pdev)
 {
+	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
 	const struct dispc_features *src;
 	struct dispc_features *dst;
 
-	dst = devm_kzalloc(dev, sizeof(*dst), GFP_KERNEL);
+	dst = devm_kzalloc(&pdev->dev, sizeof(*dst), GFP_KERNEL);
 	if (!dst) {
-		dev_err(dev, "Failed to allocate DISPC Features\n");
+		dev_err(&pdev->dev, "Failed to allocate DISPC Features\n");
 		return -ENOMEM;
 	}
 
-	if (cpu_is_omap24xx()) {
+	switch (pdata->version) {
+	case OMAPDSS_VER_OMAP24xx:
 		src = &omap24xx_dispc_feats;
-	} else if (cpu_is_omap34xx()) {
-		if (omap_rev() < OMAP3430_REV_ES3_0)
-			src = &omap34xx_rev1_0_dispc_feats;
-		else
-			src = &omap34xx_rev3_0_dispc_feats;
-	} else if (cpu_is_omap44xx()) {
+		break;
+
+	case OMAPDSS_VER_OMAP34xx_ES1:
+		src = &omap34xx_rev1_0_dispc_feats;
+		break;
+
+	case OMAPDSS_VER_OMAP34xx_ES3:
+	case OMAPDSS_VER_OMAP3630:
+	case OMAPDSS_VER_AM35xx:
+		src = &omap34xx_rev3_0_dispc_feats;
+		break;
+
+	case OMAPDSS_VER_OMAP4430_ES1:
+	case OMAPDSS_VER_OMAP4430_ES2:
+	case OMAPDSS_VER_OMAP4:
 		src = &omap44xx_dispc_feats;
-	} else if (soc_is_omap54xx()) {
+		break;
+
+	case OMAPDSS_VER_OMAP5:
 		src = &omap44xx_dispc_feats;
-	} else {
+		break;
+
+	default:
 		return -ENODEV;
 	}
 
@@ -4084,7 +4099,7 @@ static int __init omap_dispchw_probe(struct platform_device *pdev)
 
 	dispc.pdev = pdev;
 
-	r = dispc_init_features(&dispc.pdev->dev);
+	r = dispc_init_features(dispc.pdev);
 	if (r)
 		return r;
 
-- 
cgit v1.2.3


From bd81ed0818875e233a3d400cc3c70454a0a53c08 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 28 Sep 2012 12:56:00 +0300
Subject: OMAPDSS: DSS: use omapdss_version

Use omapdss_version in dss.c to select the proper dss features.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.c | 37 +++++++++++++++++++++++++++----------
 1 file changed, 27 insertions(+), 10 deletions(-)

diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 2ab1c3e9655..2e74eef92fa 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -792,29 +792,46 @@ static const struct dss_features omap54xx_dss_feats __initconst = {
 	.dpi_select_source	=	&dss_dpi_select_source_omap5,
 };
 
-static int __init dss_init_features(struct device *dev)
+static int __init dss_init_features(struct platform_device *pdev)
 {
+	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
 	const struct dss_features *src;
 	struct dss_features *dst;
 
-	dst = devm_kzalloc(dev, sizeof(*dst), GFP_KERNEL);
+	dst = devm_kzalloc(&pdev->dev, sizeof(*dst), GFP_KERNEL);
 	if (!dst) {
-		dev_err(dev, "Failed to allocate local DSS Features\n");
+		dev_err(&pdev->dev, "Failed to allocate local DSS Features\n");
 		return -ENOMEM;
 	}
 
-	if (cpu_is_omap24xx())
+	switch (pdata->version) {
+	case OMAPDSS_VER_OMAP24xx:
 		src = &omap24xx_dss_feats;
-	else if (cpu_is_omap34xx())
+		break;
+
+	case OMAPDSS_VER_OMAP34xx_ES1:
+	case OMAPDSS_VER_OMAP34xx_ES3:
+	case OMAPDSS_VER_AM35xx:
 		src = &omap34xx_dss_feats;
-	else if (cpu_is_omap3630())
+		break;
+
+	case OMAPDSS_VER_OMAP3630:
 		src = &omap3630_dss_feats;
-	else if (cpu_is_omap44xx())
+		break;
+
+	case OMAPDSS_VER_OMAP4430_ES1:
+	case OMAPDSS_VER_OMAP4430_ES2:
+	case OMAPDSS_VER_OMAP4:
 		src = &omap44xx_dss_feats;
-	else if (soc_is_omap54xx())
+		break;
+
+	case OMAPDSS_VER_OMAP5:
 		src = &omap54xx_dss_feats;
-	else
+		break;
+
+	default:
 		return -ENODEV;
+	}
 
 	memcpy(dst, src, sizeof(*dst));
 	dss.feat = dst;
@@ -831,7 +848,7 @@ static int __init omap_dsshw_probe(struct platform_device *pdev)
 
 	dss.pdev = pdev;
 
-	r = dss_init_features(&dss.pdev->dev);
+	r = dss_init_features(dss.pdev);
 	if (r)
 		return r;
 
-- 
cgit v1.2.3


From 6fa44907eef4aed168413b6883ddc1fa2efff201 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 28 Sep 2012 13:00:33 +0300
Subject: OMAPDSS: HDMI: use omapdss_version

Use omapdss_version in hdmi.c to select the proper hdmi features.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss_features.c | 14 ++++++++++++--
 drivers/video/omap2/dss/dss_features.h |  3 ++-
 drivers/video/omap2/dss/hdmi.c         |  3 ++-
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 5936ba78c14..e2c2e2b8218 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -825,10 +825,20 @@ static const struct ti_hdmi_ip_ops omap4_hdmi_functions = {
 
 };
 
-void dss_init_hdmi_ip_ops(struct hdmi_ip_data *ip_data)
+void dss_init_hdmi_ip_ops(struct hdmi_ip_data *ip_data,
+		enum omapdss_version version)
 {
-	if (cpu_is_omap44xx())
+	switch (version) {
+	case OMAPDSS_VER_OMAP4430_ES1:
+	case OMAPDSS_VER_OMAP4430_ES2:
+	case OMAPDSS_VER_OMAP4:
 		ip_data->ops = &omap4_hdmi_functions;
+		break;
+	default:
+		ip_data->ops = NULL;
+	}
+
+	WARN_ON(ip_data->ops == NULL);
 }
 #endif
 
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index 14a412ea8dc..fc492ef72a5 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -125,6 +125,7 @@ bool dss_has_feature(enum dss_feat_id id);
 void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end);
 void dss_features_init(enum omapdss_version version);
 #if defined(CONFIG_OMAP4_DSS_HDMI)
-void dss_init_hdmi_ip_ops(struct hdmi_ip_data *ip_data);
+void dss_init_hdmi_ip_ops(struct hdmi_ip_data *ip_data,
+		enum omapdss_version version);
 #endif
 #endif
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index a48a7dd75b3..adcc906d12f 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -323,6 +323,7 @@ static void hdmi_runtime_put(void)
 
 static int __init hdmi_init_display(struct omap_dss_device *dssdev)
 {
+	struct omap_dss_board_info *pdata = hdmi.pdev->dev.platform_data;
 	int r;
 
 	struct gpio gpios[] = {
@@ -333,7 +334,7 @@ static int __init hdmi_init_display(struct omap_dss_device *dssdev)
 
 	DSSDBG("init_display\n");
 
-	dss_init_hdmi_ip_ops(&hdmi.ip_data);
+	dss_init_hdmi_ip_ops(&hdmi.ip_data, pdata->version);
 
 	if (hdmi.vdda_hdmi_dac_reg == NULL) {
 		struct regulator *reg;
-- 
cgit v1.2.3


From da6c56873927418aba585038e5c4d3d72a4d9b6c Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Tue, 16 Oct 2012 13:51:21 +0200
Subject: OMAPDSS: Correct check for the callback pointer in
 dss_dsi_disable_pads()

Appear to be a copy-paste bug: the code was checking board_data->dsi_enable_pads
while calling board_data->dsi_disable_pads.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 3794147b6eb..d1ed2b4a5a2 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -117,7 +117,7 @@ void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask)
 {
 	struct omap_dss_board_info *board_data = core.pdev->dev.platform_data;
 
-	if (!board_data->dsi_enable_pads)
+	if (!board_data->dsi_disable_pads)
 		return;
 
 	return board_data->dsi_disable_pads(dsi_id, lane_mask);
-- 
cgit v1.2.3


From 35f70935c64ae229ebd1fc65398ec68d4d803712 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 28 Sep 2012 13:02:06 +0300
Subject: OMAPDSS: remove <plat/cpu.h> includes

cpu_is_* calls are no longer used in omapdss, so the includes for
<plat/cpu.h> can be removed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c        | 2 --
 drivers/video/omap2/dss/dss.c          | 2 --
 drivers/video/omap2/dss/dss_features.c | 1 -
 3 files changed, 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index d30e5fa1864..a5ab354f267 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -37,8 +37,6 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 
-#include <plat/cpu.h>
-
 #include <video/omapdss.h>
 
 #include "dss.h"
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 2e74eef92fa..363852a0f76 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -35,8 +35,6 @@
 
 #include <video/omapdss.h>
 
-#include <plat/cpu.h>
-
 #include "dss.h"
 #include "dss_features.h"
 
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index e2c2e2b8218..3e8287c8709 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -23,7 +23,6 @@
 #include <linux/slab.h>
 
 #include <video/omapdss.h>
-#include <plat/cpu.h>
 
 #include "dss.h"
 #include "dss_features.h"
-- 
cgit v1.2.3


From 33366d0e8be06b980784c732ebace26de08e6679 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 28 Sep 2012 13:54:35 +0300
Subject: OMAPDSS: add missing sizes.h includes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When compiling on x86, we get compilation errors for dss.c and dispc.c:

drivers/video/omap2/dss/dispc.c:126:11: error: ‘SZ_4K’ undeclared here
(not in a function)

include <linux/sizes.h> to fix compilation.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 1 +
 drivers/video/omap2/dss/dss.c   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index a5ab354f267..c32ec4ae8b4 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -36,6 +36,7 @@
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/sizes.h>
 
 #include <video/omapdss.h>
 
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 363852a0f76..eade3110d12 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -32,6 +32,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/gfp.h>
+#include <linux/sizes.h>
 
 #include <video/omapdss.h>
 
-- 
cgit v1.2.3


From 311d5ce88aad6033200663f27e0320e7097ebf6e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 28 Sep 2012 13:58:14 +0300
Subject: OMAPDSS: fix compilation warnings
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When compiling on x86 we get following warnings:

warning: field width specifier ‘*’ expects argument of type ‘int’, but
argument 5 has type ‘size_t’ [-Wformat]

Fix these by casting the size_t to int.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c           | 4 ++--
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index c32ec4ae8b4..2c871bc589a 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3352,7 +3352,7 @@ static void dispc_dump_regs(struct seq_file *s)
 
 #define DISPC_REG(i, name) name(i)
 #define DUMPREG(i, r) seq_printf(s, "%s(%s)%*s %08x\n", #r, p_names[i], \
-	48 - strlen(#r) - strlen(p_names[i]), " ", \
+	(int)(48 - strlen(#r) - strlen(p_names[i])), " ", \
 	dispc_read_reg(DISPC_REG(i, r)))
 
 	p_names = mgr_names;
@@ -3429,7 +3429,7 @@ static void dispc_dump_regs(struct seq_file *s)
 #define DISPC_REG(plane, name, i) name(plane, i)
 #define DUMPREG(plane, name, i) \
 	seq_printf(s, "%s_%d(%s)%*s %08x\n", #name, i, p_names[plane], \
-	46 - strlen(#name) - strlen(p_names[plane]), " ", \
+	(int)(46 - strlen(#name) - strlen(p_names[plane])), " ", \
 	dispc_read_reg(DISPC_REG(plane, name, i)))
 
 	/* Video pipeline coefficient registers */
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index c23b85a20cd..a6efff257aa 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -899,7 +899,7 @@ void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 #define DUMPCOREAV(r) seq_printf(s, "%-35s %08x\n", #r,\
 		hdmi_read_reg(hdmi_av_base(ip_data), r))
 #define DUMPCOREAV2(i, r) seq_printf(s, "%s[%d]%*s %08x\n", #r, i, \
-		(i < 10) ? 32 - strlen(#r) : 31 - strlen(#r), " ", \
+		(i < 10) ? 32 - (int)strlen(#r) : 31 - (int)strlen(#r), " ", \
 		hdmi_read_reg(hdmi_av_base(ip_data), CORE_REG(i, r)))
 
 	DUMPCORE(HDMI_CORE_SYS_VND_IDL);
-- 
cgit v1.2.3


From 97fbd0fc9f36105c68cf235fd9bffb3e517d2e06 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 28 Sep 2012 13:46:39 +0300
Subject: OMAPDSS: remove Kconfig dependencies

Now that omapdss no longer uses any platform specific functions, we can
remove the "depends on ARCH_OMAP*" lines from Kconfig.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Kconfig | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig
index 80f5390aa13..b5807e793e8 100644
--- a/drivers/video/omap2/dss/Kconfig
+++ b/drivers/video/omap2/dss/Kconfig
@@ -1,6 +1,5 @@
 menuconfig OMAP2_DSS
         tristate "OMAP2+ Display Subsystem support"
-        depends on ARCH_OMAP2PLUS
         help
 	  OMAP2+ Display Subsystem support.
 
@@ -62,7 +61,6 @@ config OMAP2_DSS_VENC
 
 config OMAP4_DSS_HDMI
 	bool "HDMI support"
-	depends on ARCH_OMAP4
         default y
 	help
 	  HDMI Interface. This adds the High Definition Multimedia Interface.
@@ -70,11 +68,9 @@ config OMAP4_DSS_HDMI
 
 config OMAP4_DSS_HDMI_AUDIO
 	bool
-	depends on OMAP4_DSS_HDMI
 
 config OMAP2_DSS_SDI
 	bool "SDI support"
-	depends on ARCH_OMAP3
         default n
 	help
 	  SDI (Serial Display Interface) support.
@@ -84,7 +80,6 @@ config OMAP2_DSS_SDI
 
 config OMAP2_DSS_DSI
 	bool "DSI support"
-	depends on ARCH_OMAP3 || ARCH_OMAP4 || ARCH_OMAP5
         default n
 	help
 	  MIPI DSI (Display Serial Interface) support.
-- 
cgit v1.2.3


From 406c8563a7b07ce91b1310536948477c7a8755de Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 8 Oct 2012 14:35:44 +0300
Subject: OMAP: VRFB: convert vrfb to platform device

This patch converts vrfb library into a platform device, in an effort to
remove omap dependencies.

The platform device is registered in arch/arm/plat-omap/fb.c and
assigned resources depending on whether running on omap2 or omap3.

The vrfb driver will parse those resources and use them to access vrfb
configuration registers and the vrfb virtual rotation areas.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/fb.c    |  61 ++++++++++++++++++++++
 drivers/video/omap2/vrfb.c | 124 +++++++++++++++++++++++++++++++++++++--------
 2 files changed, 165 insertions(+), 20 deletions(-)

diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c
index bcbb9d5dc29..f868caeedfd 100644
--- a/arch/arm/plat-omap/fb.c
+++ b/arch/arm/plat-omap/fb.c
@@ -33,6 +33,67 @@
 #include <mach/hardware.h>
 #include <asm/mach/map.h>
 
+#include <plat/cpu.h>
+
+#ifdef CONFIG_OMAP2_VRFB
+
+/*
+ * The first memory resource is the register region for VRFB,
+ * the rest are VRFB virtual memory areas for each VRFB context.
+ */
+
+static const struct resource omap2_vrfb_resources[] = {
+	DEFINE_RES_MEM_NAMED(0x68008000u, 0x40, "vrfb-regs"),
+	DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0"),
+	DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1"),
+	DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2"),
+	DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3"),
+};
+
+static const struct resource omap3_vrfb_resources[] = {
+	DEFINE_RES_MEM_NAMED(0x6C000180u, 0xc0, "vrfb-regs"),
+	DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0"),
+	DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1"),
+	DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2"),
+	DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3"),
+	DEFINE_RES_MEM_NAMED(0xe0000000u, 0x4000000, "vrfb-area-4"),
+	DEFINE_RES_MEM_NAMED(0xe4000000u, 0x4000000, "vrfb-area-5"),
+	DEFINE_RES_MEM_NAMED(0xe8000000u, 0x4000000, "vrfb-area-6"),
+	DEFINE_RES_MEM_NAMED(0xec000000u, 0x4000000, "vrfb-area-7"),
+	DEFINE_RES_MEM_NAMED(0xf0000000u, 0x4000000, "vrfb-area-8"),
+	DEFINE_RES_MEM_NAMED(0xf4000000u, 0x4000000, "vrfb-area-9"),
+	DEFINE_RES_MEM_NAMED(0xf8000000u, 0x4000000, "vrfb-area-10"),
+	DEFINE_RES_MEM_NAMED(0xfc000000u, 0x4000000, "vrfb-area-11"),
+};
+
+static int __init omap_init_vrfb(void)
+{
+	struct platform_device *pdev;
+	const struct resource *res;
+	unsigned int num_res;
+
+	if (cpu_is_omap24xx()) {
+		res = omap2_vrfb_resources;
+		num_res = ARRAY_SIZE(omap2_vrfb_resources);
+	} else if (cpu_is_omap34xx()) {
+		res = omap3_vrfb_resources;
+		num_res = ARRAY_SIZE(omap3_vrfb_resources);
+	} else {
+		return 0;
+	}
+
+	pdev = platform_device_register_resndata(NULL, "omapvrfb", -1,
+			res, num_res, NULL, 0);
+
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+	else
+		return 0;
+}
+
+arch_initcall(omap_init_vrfb);
+#endif
+
 #if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
 
 static bool omapfb_lcd_configured;
diff --git a/drivers/video/omap2/vrfb.c b/drivers/video/omap2/vrfb.c
index 7e990220ad2..fda45cc10d4 100644
--- a/drivers/video/omap2/vrfb.c
+++ b/drivers/video/omap2/vrfb.c
@@ -26,9 +26,9 @@
 #include <linux/io.h>
 #include <linux/bitops.h>
 #include <linux/mutex.h>
+#include <linux/platform_device.h>
 
 #include <plat/vrfb.h>
-#include <plat/sdrc.h>
 
 #ifdef DEBUG
 #define DBG(format, ...) pr_debug("VRFB: " format, ## __VA_ARGS__)
@@ -36,10 +36,10 @@
 #define DBG(format, ...)
 #endif
 
-#define SMS_ROT_VIRT_BASE(context, rot) \
-	(((context >= 4) ? 0xD0000000 : 0x70000000) \
-	 + (0x4000000 * (context)) \
-	 + (0x1000000 * (rot)))
+#define SMS_ROT_CONTROL(context)	(0x0 + 0x10 * context)
+#define SMS_ROT_SIZE(context)		(0x4 + 0x10 * context)
+#define SMS_ROT_PHYSICAL_BA(context)	(0x8 + 0x10 * context)
+#define SMS_ROT_VIRT_BASE(rot)		(0x1000000 * (rot))
 
 #define OMAP_VRFB_SIZE			(2048 * 2048 * 4)
 
@@ -53,10 +53,16 @@
 #define SMS_PW_OFFSET		4
 #define SMS_PS_OFFSET		0
 
-#define VRFB_NUM_CTXS 12
 /* bitmap of reserved contexts */
 static unsigned long ctx_map;
 
+struct vrfb_ctx {
+	u32 base;
+	u32 physical_ba;
+	u32 control;
+	u32 size;
+};
+
 static DEFINE_MUTEX(ctx_lock);
 
 /*
@@ -65,17 +71,32 @@ static DEFINE_MUTEX(ctx_lock);
  * we don't need locking, since no drivers will run until after the wake-up
  * has finished.
  */
-static struct {
-	u32 physical_ba;
-	u32 control;
-	u32 size;
-} vrfb_hw_context[VRFB_NUM_CTXS];
+
+static void __iomem *vrfb_base;
+
+static int num_ctxs;
+static struct vrfb_ctx *ctxs;
+
+static void omap2_sms_write_rot_control(u32 val, unsigned ctx)
+{
+	__raw_writel(val, vrfb_base + SMS_ROT_CONTROL(ctx));
+}
+
+static void omap2_sms_write_rot_size(u32 val, unsigned ctx)
+{
+	__raw_writel(val, vrfb_base + SMS_ROT_SIZE(ctx));
+}
+
+static void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx)
+{
+	__raw_writel(val, vrfb_base + SMS_ROT_PHYSICAL_BA(ctx));
+}
 
 static inline void restore_hw_context(int ctx)
 {
-	omap2_sms_write_rot_control(vrfb_hw_context[ctx].control, ctx);
-	omap2_sms_write_rot_size(vrfb_hw_context[ctx].size, ctx);
-	omap2_sms_write_rot_physical_ba(vrfb_hw_context[ctx].physical_ba, ctx);
+	omap2_sms_write_rot_control(ctxs[ctx].control, ctx);
+	omap2_sms_write_rot_size(ctxs[ctx].size, ctx);
+	omap2_sms_write_rot_physical_ba(ctxs[ctx].physical_ba, ctx);
 }
 
 static u32 get_image_width_roundup(u16 width, u8 bytespp)
@@ -196,9 +217,9 @@ void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
 	control |= VRFB_PAGE_WIDTH_EXP  << SMS_PW_OFFSET;
 	control |= VRFB_PAGE_HEIGHT_EXP << SMS_PH_OFFSET;
 
-	vrfb_hw_context[ctx].physical_ba = paddr;
-	vrfb_hw_context[ctx].size = size;
-	vrfb_hw_context[ctx].control = control;
+	ctxs[ctx].physical_ba = paddr;
+	ctxs[ctx].size = size;
+	ctxs[ctx].control = control;
 
 	omap2_sms_write_rot_physical_ba(paddr, ctx);
 	omap2_sms_write_rot_size(size, ctx);
@@ -274,11 +295,11 @@ int omap_vrfb_request_ctx(struct vrfb *vrfb)
 
 	mutex_lock(&ctx_lock);
 
-	for (ctx = 0; ctx < VRFB_NUM_CTXS; ++ctx)
+	for (ctx = 0; ctx < num_ctxs; ++ctx)
 		if ((ctx_map & (1 << ctx)) == 0)
 			break;
 
-	if (ctx == VRFB_NUM_CTXS) {
+	if (ctx == num_ctxs) {
 		pr_err("vrfb: no free contexts\n");
 		r = -EBUSY;
 		goto out;
@@ -293,7 +314,7 @@ int omap_vrfb_request_ctx(struct vrfb *vrfb)
 	vrfb->context = ctx;
 
 	for (rot = 0; rot < 4; ++rot) {
-		paddr = SMS_ROT_VIRT_BASE(ctx, rot);
+		paddr = ctxs[ctx].base + SMS_ROT_VIRT_BASE(rot);
 		if (!request_mem_region(paddr, OMAP_VRFB_SIZE, "vrfb")) {
 			pr_err("vrfb: failed to reserve VRFB "
 					"area for ctx %d, rotation %d\n",
@@ -314,3 +335,66 @@ out:
 	return r;
 }
 EXPORT_SYMBOL(omap_vrfb_request_ctx);
+
+static int __init vrfb_probe(struct platform_device *pdev)
+{
+	struct resource *mem;
+	int i;
+
+	/* first resource is the register res, the rest are vrfb contexts */
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!mem) {
+		dev_err(&pdev->dev, "can't get vrfb base address\n");
+		return -EINVAL;
+	}
+
+	vrfb_base = devm_request_and_ioremap(&pdev->dev, mem);
+	if (!vrfb_base) {
+		dev_err(&pdev->dev, "can't ioremap vrfb memory\n");
+		return -ENOMEM;
+	}
+
+	num_ctxs = pdev->num_resources - 1;
+
+	ctxs = devm_kzalloc(&pdev->dev,
+			sizeof(struct vrfb_ctx) * num_ctxs,
+			GFP_KERNEL);
+
+	if (!ctxs)
+		return -ENOMEM;
+
+	for (i = 0; i < num_ctxs; ++i) {
+		mem = platform_get_resource(pdev, IORESOURCE_MEM, 1 + i);
+		if (!mem) {
+			dev_err(&pdev->dev, "can't get vrfb ctx %d address\n",
+					i);
+			return -EINVAL;
+		}
+
+		ctxs[i].base = mem->start;
+	}
+
+	return 0;
+}
+
+static struct platform_driver vrfb_driver = {
+	.driver.name	= "omapvrfb",
+};
+
+static int __init vrfb_init(void)
+{
+	return platform_driver_probe(&vrfb_driver, &vrfb_probe);
+}
+
+static void __exit vrfb_exit(void)
+{
+	platform_driver_unregister(&vrfb_driver);
+}
+
+module_init(vrfb_init);
+module_exit(vrfb_exit);
+
+MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
+MODULE_DESCRIPTION("OMAP VRFB");
+MODULE_LICENSE("GPL v2");
-- 
cgit v1.2.3


From 6a1c9f6d19180cdbb603e5b77bd7b57d01260664 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 8 Oct 2012 14:52:24 +0300
Subject: OMAP: move arch/arm/plat-omap/include/plat/vrfb.h

Now that vrfb driver is not omap dependent anymore, we can move vrfb.h
from arch/arm/plat-omap/include/plat to include/video/omapvrfb.h.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
---
 arch/arm/plat-omap/include/plat/vrfb.h       | 66 ----------------------------
 drivers/media/platform/omap/omap_vout.c      |  2 +-
 drivers/media/platform/omap/omap_vout_vrfb.c |  2 +-
 drivers/media/platform/omap/omap_voutdef.h   |  2 +-
 drivers/video/omap2/omapfb/omapfb-ioctl.c    |  2 +-
 drivers/video/omap2/omapfb/omapfb-main.c     |  2 +-
 drivers/video/omap2/omapfb/omapfb-sysfs.c    |  2 +-
 drivers/video/omap2/vrfb.c                   |  2 +-
 include/video/omapvrfb.h                     | 66 ++++++++++++++++++++++++++++
 9 files changed, 73 insertions(+), 73 deletions(-)
 delete mode 100644 arch/arm/plat-omap/include/plat/vrfb.h
 create mode 100644 include/video/omapvrfb.h

diff --git a/arch/arm/plat-omap/include/plat/vrfb.h b/arch/arm/plat-omap/include/plat/vrfb.h
deleted file mode 100644
index 3792bdea2f6..00000000000
--- a/arch/arm/plat-omap/include/plat/vrfb.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * VRFB Rotation Engine
- *
- * Copyright (C) 2009 Nokia Corporation
- * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- */
-
-#ifndef __OMAP_VRFB_H__
-#define __OMAP_VRFB_H__
-
-#define OMAP_VRFB_LINE_LEN 2048
-
-struct vrfb {
-	u8 context;
-	void __iomem *vaddr[4];
-	unsigned long paddr[4];
-	u16 xres;
-	u16 yres;
-	u16 xoffset;
-	u16 yoffset;
-	u8 bytespp;
-	bool yuv_mode;
-};
-
-#ifdef CONFIG_OMAP2_VRFB
-extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
-extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
-extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
-		u8 bytespp);
-extern u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp);
-extern u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp);
-extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
-		u16 width, u16 height,
-		unsigned bytespp, bool yuv_mode);
-extern int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot);
-extern void omap_vrfb_restore_context(void);
-
-#else
-static inline int omap_vrfb_request_ctx(struct vrfb *vrfb) { return 0; }
-static inline void omap_vrfb_release_ctx(struct vrfb *vrfb) {}
-static inline void omap_vrfb_adjust_size(u16 *width, u16 *height,
-		u8 bytespp) {}
-static inline u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp)
-		{ return 0; }
-static inline u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp)
-		{ return 0; }
-static inline void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
-		u16 width, u16 height, unsigned bytespp, bool yuv_mode) {}
-static inline int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot)
-		{ return 0; }
-static inline void omap_vrfb_restore_context(void) {}
-#endif
-#endif /* __VRFB_H */
diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
index a3b1a34c896..3ff94a30fde 100644
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -46,7 +46,7 @@
 
 #include <plat/cpu.h>
 #include <plat/dma.h>
-#include <plat/vrfb.h>
+#include <video/omapvrfb.h>
 #include <video/omapdss.h>
 
 #include "omap_voutlib.h"
diff --git a/drivers/media/platform/omap/omap_vout_vrfb.c b/drivers/media/platform/omap/omap_vout_vrfb.c
index 4be26abf6ce..6c37f9240dd 100644
--- a/drivers/media/platform/omap/omap_vout_vrfb.c
+++ b/drivers/media/platform/omap/omap_vout_vrfb.c
@@ -17,7 +17,7 @@
 #include <media/v4l2-device.h>
 
 #include <plat/dma.h>
-#include <plat/vrfb.h>
+#include <video/omapvrfb.h>
 
 #include "omap_voutdef.h"
 #include "omap_voutlib.h"
diff --git a/drivers/media/platform/omap/omap_voutdef.h b/drivers/media/platform/omap/omap_voutdef.h
index 27a95d23b91..9ccfe1f475a 100644
--- a/drivers/media/platform/omap/omap_voutdef.h
+++ b/drivers/media/platform/omap/omap_voutdef.h
@@ -12,7 +12,7 @@
 #define OMAP_VOUTDEF_H
 
 #include <video/omapdss.h>
-#include <plat/vrfb.h>
+#include <video/omapvrfb.h>
 
 #define YUYV_BPP        2
 #define RGB565_BPP      2
diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 606b89f1235..55a39be694a 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -30,7 +30,7 @@
 #include <linux/export.h>
 
 #include <video/omapdss.h>
-#include <plat/vrfb.h>
+#include <video/omapvrfb.h>
 #include <plat/vram.h>
 
 #include "omapfb.h"
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 16db1589bd9..5943b3a5d55 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -33,7 +33,7 @@
 #include <video/omapdss.h>
 #include <plat/cpu.h>
 #include <plat/vram.h>
-#include <plat/vrfb.h>
+#include <video/omapvrfb.h>
 
 #include "omapfb.h"
 
diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c
index e8d8cc76a43..17aa174e187 100644
--- a/drivers/video/omap2/omapfb/omapfb-sysfs.c
+++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c
@@ -30,7 +30,7 @@
 #include <linux/omapfb.h>
 
 #include <video/omapdss.h>
-#include <plat/vrfb.h>
+#include <video/omapvrfb.h>
 
 #include "omapfb.h"
 
diff --git a/drivers/video/omap2/vrfb.c b/drivers/video/omap2/vrfb.c
index fda45cc10d4..e4a0450a39a 100644
--- a/drivers/video/omap2/vrfb.c
+++ b/drivers/video/omap2/vrfb.c
@@ -28,7 +28,7 @@
 #include <linux/mutex.h>
 #include <linux/platform_device.h>
 
-#include <plat/vrfb.h>
+#include <video/omapvrfb.h>
 
 #ifdef DEBUG
 #define DBG(format, ...) pr_debug("VRFB: " format, ## __VA_ARGS__)
diff --git a/include/video/omapvrfb.h b/include/video/omapvrfb.h
new file mode 100644
index 00000000000..3792bdea2f6
--- /dev/null
+++ b/include/video/omapvrfb.h
@@ -0,0 +1,66 @@
+/*
+ * VRFB Rotation Engine
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#ifndef __OMAP_VRFB_H__
+#define __OMAP_VRFB_H__
+
+#define OMAP_VRFB_LINE_LEN 2048
+
+struct vrfb {
+	u8 context;
+	void __iomem *vaddr[4];
+	unsigned long paddr[4];
+	u16 xres;
+	u16 yres;
+	u16 xoffset;
+	u16 yoffset;
+	u8 bytespp;
+	bool yuv_mode;
+};
+
+#ifdef CONFIG_OMAP2_VRFB
+extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
+extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
+extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
+		u8 bytespp);
+extern u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp);
+extern u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp);
+extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
+		u16 width, u16 height,
+		unsigned bytespp, bool yuv_mode);
+extern int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot);
+extern void omap_vrfb_restore_context(void);
+
+#else
+static inline int omap_vrfb_request_ctx(struct vrfb *vrfb) { return 0; }
+static inline void omap_vrfb_release_ctx(struct vrfb *vrfb) {}
+static inline void omap_vrfb_adjust_size(u16 *width, u16 *height,
+		u8 bytespp) {}
+static inline u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp)
+		{ return 0; }
+static inline u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp)
+		{ return 0; }
+static inline void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
+		u16 width, u16 height, unsigned bytespp, bool yuv_mode) {}
+static inline int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot)
+		{ return 0; }
+static inline void omap_vrfb_restore_context(void) {}
+#endif
+#endif /* __VRFB_H */
-- 
cgit v1.2.3


From 8c05a412243b522a263326c4839aec081151147c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 9 Oct 2012 11:47:20 +0300
Subject: OMAP: SDRC: remove VRFB code

Now that VRFB driver handles its registers independently, we can remove
the VRFB related code from OMAP's sdrc.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/sdrc.c             | 16 ----------------
 arch/arm/plat-omap/include/plat/sdrc.h |  7 -------
 2 files changed, 23 deletions(-)

diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c
index e3d345f4640..4282e6e967d 100644
--- a/arch/arm/mach-omap2/sdrc.c
+++ b/arch/arm/mach-omap2/sdrc.c
@@ -160,19 +160,3 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 	sdrc_write_reg(l, SDRC_POWER);
 	omap2_sms_save_context();
 }
-
-void omap2_sms_write_rot_control(u32 val, unsigned ctx)
-{
-	sms_write_reg(val, SMS_ROT_CONTROL(ctx));
-}
-
-void omap2_sms_write_rot_size(u32 val, unsigned ctx)
-{
-	sms_write_reg(val, SMS_ROT_SIZE(ctx));
-}
-
-void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx)
-{
-	sms_write_reg(val, SMS_ROT_PHYSICAL_BA(ctx));
-}
-
diff --git a/arch/arm/plat-omap/include/plat/sdrc.h b/arch/arm/plat-omap/include/plat/sdrc.h
index 36d6a766621..c68bab29cfc 100644
--- a/arch/arm/plat-omap/include/plat/sdrc.h
+++ b/arch/arm/plat-omap/include/plat/sdrc.h
@@ -94,9 +94,6 @@
 /* SMS register offsets - read/write with sms_{read,write}_reg() */
 
 #define SMS_SYSCONFIG			0x010
-#define SMS_ROT_CONTROL(context)	(0x180 + 0x10 * context)
-#define SMS_ROT_SIZE(context)		(0x184 + 0x10 * context)
-#define SMS_ROT_PHYSICAL_BA(context)	(0x188 + 0x10 * context)
 /* REVISIT: fill in other SMS registers here */
 
 
@@ -137,10 +134,6 @@ int omap2_sdrc_get_params(unsigned long r,
 void omap2_sms_save_context(void);
 void omap2_sms_restore_context(void);
 
-void omap2_sms_write_rot_control(u32 val, unsigned ctx);
-void omap2_sms_write_rot_size(u32 val, unsigned ctx);
-void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx);
-
 #ifdef CONFIG_ARCH_OMAP2
 
 struct memory_timings {
-- 
cgit v1.2.3


From aa1e49a3752f09b3d2ab706f6d48916a04acf557 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 17 Oct 2012 12:15:31 +0300
Subject: OMAPDSS: VRFB: add omap_vrfb_supported()

Add an exported function omap_vrfb_supported() which returns true if the
vrfb driver has been loaded succesfully. This can be used to decide if
VRFB can be used or not.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/vrfb.c | 16 ++++++++++++++++
 include/video/omapvrfb.h   |  2 ++
 2 files changed, 18 insertions(+)

diff --git a/drivers/video/omap2/vrfb.c b/drivers/video/omap2/vrfb.c
index e4a0450a39a..5d8fdac3b80 100644
--- a/drivers/video/omap2/vrfb.c
+++ b/drivers/video/omap2/vrfb.c
@@ -77,6 +77,8 @@ static void __iomem *vrfb_base;
 static int num_ctxs;
 static struct vrfb_ctx *ctxs;
 
+static bool vrfb_loaded;
+
 static void omap2_sms_write_rot_control(u32 val, unsigned ctx)
 {
 	__raw_writel(val, vrfb_base + SMS_ROT_CONTROL(ctx));
@@ -336,6 +338,12 @@ out:
 }
 EXPORT_SYMBOL(omap_vrfb_request_ctx);
 
+bool omap_vrfb_supported(void)
+{
+	return vrfb_loaded;
+}
+EXPORT_SYMBOL(omap_vrfb_supported);
+
 static int __init vrfb_probe(struct platform_device *pdev)
 {
 	struct resource *mem;
@@ -375,11 +383,19 @@ static int __init vrfb_probe(struct platform_device *pdev)
 		ctxs[i].base = mem->start;
 	}
 
+	vrfb_loaded = true;
+
 	return 0;
 }
 
+static void __exit vrfb_remove(struct platform_device *pdev)
+{
+	vrfb_loaded = false;
+}
+
 static struct platform_driver vrfb_driver = {
 	.driver.name	= "omapvrfb",
+	.remove		= __exit_p(vrfb_remove),
 };
 
 static int __init vrfb_init(void)
diff --git a/include/video/omapvrfb.h b/include/video/omapvrfb.h
index 3792bdea2f6..bb0bd89f8bc 100644
--- a/include/video/omapvrfb.h
+++ b/include/video/omapvrfb.h
@@ -36,6 +36,7 @@ struct vrfb {
 };
 
 #ifdef CONFIG_OMAP2_VRFB
+extern bool omap_vrfb_supported(void);
 extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
 extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
 extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
@@ -49,6 +50,7 @@ extern int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot);
 extern void omap_vrfb_restore_context(void);
 
 #else
+static inline bool omap_vrfb_supported(void) { return false; }
 static inline int omap_vrfb_request_ctx(struct vrfb *vrfb) { return 0; }
 static inline void omap_vrfb_release_ctx(struct vrfb *vrfb) {}
 static inline void omap_vrfb_adjust_size(u16 *width, u16 *height,
-- 
cgit v1.2.3


From a89d1a87ad80277939c7fcfb8484f0b110d264ef Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 17 Oct 2012 12:16:50 +0300
Subject: OMAPFB: use omap_vrfb_supported()

Replace cpu_is_*() check with omap_vrfb_supported().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-main.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 5943b3a5d55..bc225e46fdd 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -31,7 +31,6 @@
 #include <linux/omapfb.h>
 
 #include <video/omapdss.h>
-#include <plat/cpu.h>
 #include <plat/vram.h>
 #include <video/omapvrfb.h>
 
@@ -2396,10 +2395,7 @@ static int __init omapfb_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	/* TODO : Replace cpu check with omap_has_vrfb once HAS_FEATURE
-	*	 available for OMAP2 and OMAP3
-	*/
-	if (def_vrfb && !cpu_is_omap24xx() && !cpu_is_omap34xx()) {
+	if (def_vrfb && !omap_vrfb_supported()) {
 		def_vrfb = 0;
 		dev_warn(&pdev->dev, "VRFB is not supported on this hardware, "
 				"ignoring the module parameter vrfb=y\n");
-- 
cgit v1.2.3


From 78e7f256b207aba4bc0bcd9ba55e472dab87afc8 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 15 Oct 2012 12:48:11 +0300
Subject: OMAPDSS: DSI: fix dsi_get_dsidev_from_id()

If dsi_get_dsidev_from_id() is called with a DSI module id that does not
exist on the board, the function will crash as omap_dss_get_output()
will return NULL.

This happens on omap3 boards when dumping DSI clocks, as the dumping
code will try to get the dsidev for DSI modules 0 and 1, but omap3 only
has DSI module 0.

Also clean up the id -> output mapping, so that if the function is
called with invalid module ID it will return NULL.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Archit Taneja <archit@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index af07ec6a83b..7d0db2bf2fc 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -364,11 +364,20 @@ struct platform_device *dsi_get_dsidev_from_id(int module)
 	struct omap_dss_output *out;
 	enum omap_dss_output_id	id;
 
-	id = module == 0 ? OMAP_DSS_OUTPUT_DSI1 : OMAP_DSS_OUTPUT_DSI2;
+	switch (module) {
+	case 0:
+		id = OMAP_DSS_OUTPUT_DSI1;
+		break;
+	case 1:
+		id = OMAP_DSS_OUTPUT_DSI2;
+		break;
+	default:
+		return NULL;
+	}
 
 	out = omap_dss_get_output(id);
 
-	return out->pdev;
+	return out ? out->pdev : NULL;
 }
 
 static inline void dsi_write_reg(struct platform_device *dsidev,
-- 
cgit v1.2.3


From d7b6b6b1e7490beba3f4a30d8a6f22947c263ffe Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 10 Aug 2012 14:17:47 +0300
Subject: OMAPDSS: fix registering the vsync isr in apply

When we enable an output we don't check if we need to register the vsync
isr. This causes us to miss vsync interrupts until somebody changes the
configuration of an overlay or an overlay manager.

Add the registration to dss_mgr_enable to fix the problem.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index e923d9f90ee..e85ec05238a 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -1035,6 +1035,9 @@ int dss_mgr_enable(struct omap_overlay_manager *mgr)
 	if (!mgr_manual_update(mgr))
 		mp->updating = true;
 
+	if (!dss_data.irq_enabled && need_isr())
+		dss_register_vsync_isr();
+
 	spin_unlock_irqrestore(&data_lock, flags);
 
 	if (!mgr_manual_update(mgr))
-- 
cgit v1.2.3


From a8f3fcd1a274a4ddd4a81b0cdd968b3bdda2415c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 3 Oct 2012 09:09:11 +0200
Subject: OMAPDSS: DISPC: constify function parameters

Add consts to dispc function parameters which do not modify the passed
structs.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 10 +++++-----
 drivers/video/omap2/dss/dss.h   |  6 +++---
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index a85228930b0..31880618f0e 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1075,7 +1075,7 @@ static void dispc_mgr_enable_cpr(enum omap_channel channel, bool enable)
 }
 
 static void dispc_mgr_set_cpr_coef(enum omap_channel channel,
-		struct omap_dss_cpr_coefs *coefs)
+		const struct omap_dss_cpr_coefs *coefs)
 {
 	u32 coef_r, coef_g, coef_b;
 
@@ -2504,7 +2504,7 @@ int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
 		bool mem_to_mem)
 {
 	int r;
-	struct omap_overlay *ovl = omap_dss_get_overlay(plane);
+	const struct omap_overlay *ovl = omap_dss_get_overlay(plane);
 	enum omap_channel channel;
 
 	channel = dispc_ovl_get_channel_out(plane);
@@ -2841,7 +2841,7 @@ static void dispc_mgr_enable_alpha_fixed_zorder(enum omap_channel ch,
 }
 
 void dispc_mgr_setup(enum omap_channel channel,
-		struct omap_overlay_manager_info *info)
+		const struct omap_overlay_manager_info *info)
 {
 	dispc_mgr_set_default_color(channel, info->default_color);
 	dispc_mgr_set_trans_key(channel, info->trans_key_type, info->trans_key);
@@ -3011,7 +3011,7 @@ static void _dispc_mgr_set_lcd_timings(enum omap_channel channel, int hsw,
 
 /* change name to mode? */
 void dispc_mgr_set_timings(enum omap_channel channel,
-		struct omap_video_timings *timings)
+		const struct omap_video_timings *timings)
 {
 	unsigned xtot, ytot;
 	unsigned long ht, vt;
@@ -3532,7 +3532,7 @@ int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
 }
 
 void dispc_mgr_set_clock_div(enum omap_channel channel,
-		struct dispc_clock_info *cinfo)
+		const struct dispc_clock_info *cinfo)
 {
 	DSSDBG("lck = %lu (%u)\n", cinfo->lck, cinfo->lck_div);
 	DSSDBG("pck = %lu (%u)\n", cinfo->pck, cinfo->pck_div);
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 75f841a4a1e..d1e7bea077a 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -449,16 +449,16 @@ void dispc_mgr_enable_stallmode(enum omap_channel channel, bool enable);
 void dispc_mgr_set_tft_data_lines(enum omap_channel channel, u8 data_lines);
 void dispc_mgr_set_lcd_type_tft(enum omap_channel channel);
 void dispc_mgr_set_timings(enum omap_channel channel,
-		struct omap_video_timings *timings);
+		const struct omap_video_timings *timings);
 unsigned long dispc_mgr_lclk_rate(enum omap_channel channel);
 unsigned long dispc_mgr_pclk_rate(enum omap_channel channel);
 unsigned long dispc_core_clk_rate(void);
 void dispc_mgr_set_clock_div(enum omap_channel channel,
-		struct dispc_clock_info *cinfo);
+		const struct dispc_clock_info *cinfo);
 int dispc_mgr_get_clock_div(enum omap_channel channel,
 		struct dispc_clock_info *cinfo);
 void dispc_mgr_setup(enum omap_channel channel,
-		struct omap_overlay_manager_info *info);
+		const struct omap_overlay_manager_info *info);
 
 u32 dispc_wb_get_framedone_irq(void);
 bool dispc_wb_go_busy(void);
-- 
cgit v1.2.3


From fb2cec1f72acb030180aa96cd150b47b562bc999 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 12 Sep 2012 13:30:39 +0300
Subject: OMAPDSS: combine LCD related config into one func

Dispc has a bunch of functions used to configure output related
parameters:

- dispc_mgr_set_io_pad_mode
- dispc_mgr_enable_stallmode
- dispc_mgr_enable_fifohandcheck
- dispc_mgr_set_clock_div
- dispc_mgr_set_tft_data_lines
- dispc_lcd_enable_signal_polarity
- dispc_mgr_set_lcd_type_tft

These are all called together, and the configuration values are taken
from struct dss_lcd_mgr_config.

Instead of exposing those individual dispc functions, create a new one,
dispc_mgr_set_lcd_config(), which is used to configure the above
parameters from values in struct dss_lcd_mgr_config.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 18 ++----------------
 drivers/video/omap2/dss/dispc.c | 29 +++++++++++++++++++++++------
 drivers/video/omap2/dss/dss.h   |  8 ++------
 3 files changed, 27 insertions(+), 28 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index e85ec05238a..7cdc09641b1 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -666,22 +666,8 @@ static void dss_mgr_write_regs_extra(struct omap_overlay_manager *mgr)
 	dispc_mgr_set_timings(mgr->id, &mp->timings);
 
 	/* lcd_config parameters */
-	if (dss_mgr_is_lcd(mgr->id)) {
-		dispc_mgr_set_io_pad_mode(mp->lcd_config.io_pad_mode);
-
-		dispc_mgr_enable_stallmode(mgr->id, mp->lcd_config.stallmode);
-		dispc_mgr_enable_fifohandcheck(mgr->id,
-			mp->lcd_config.fifohandcheck);
-
-		dispc_mgr_set_clock_div(mgr->id, &mp->lcd_config.clock_info);
-
-		dispc_mgr_set_tft_data_lines(mgr->id,
-			mp->lcd_config.video_port_width);
-
-		dispc_lcd_enable_signal_polarity(mp->lcd_config.lcden_sig_polarity);
-
-		dispc_mgr_set_lcd_type_tft(mgr->id);
-	}
+	if (dss_mgr_is_lcd(mgr->id))
+		dispc_mgr_set_lcd_config(mgr->id, &mp->lcd_config);
 
 	mp->extra_info_dirty = false;
 	if (mp->updating)
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 31880618f0e..b65591ebaf2 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2768,7 +2768,7 @@ bool dispc_wb_is_enabled(void)
 	return REG_GET(DISPC_OVL_ATTRIBUTES(plane), 0, 0);
 }
 
-void dispc_lcd_enable_signal_polarity(bool act_high)
+static void dispc_lcd_enable_signal_polarity(bool act_high)
 {
 	if (!dss_has_feature(FEAT_LCDENABLEPOL))
 		return;
@@ -2792,13 +2792,13 @@ void dispc_pck_free_enable(bool enable)
 	REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27);
 }
 
-void dispc_mgr_enable_fifohandcheck(enum omap_channel channel, bool enable)
+static void dispc_mgr_enable_fifohandcheck(enum omap_channel channel, bool enable)
 {
 	mgr_fld_write(channel, DISPC_MGR_FLD_FIFOHANDCHECK, enable);
 }
 
 
-void dispc_mgr_set_lcd_type_tft(enum omap_channel channel)
+static void dispc_mgr_set_lcd_type_tft(enum omap_channel channel)
 {
 	mgr_fld_write(channel, DISPC_MGR_FLD_STNTFT, 1);
 }
@@ -2854,7 +2854,7 @@ void dispc_mgr_setup(enum omap_channel channel,
 	}
 }
 
-void dispc_mgr_set_tft_data_lines(enum omap_channel channel, u8 data_lines)
+static void dispc_mgr_set_tft_data_lines(enum omap_channel channel, u8 data_lines)
 {
 	int code;
 
@@ -2879,7 +2879,7 @@ void dispc_mgr_set_tft_data_lines(enum omap_channel channel, u8 data_lines)
 	mgr_fld_write(channel, DISPC_MGR_FLD_TFTDATALINES, code);
 }
 
-void dispc_mgr_set_io_pad_mode(enum dss_io_pad_mode mode)
+static void dispc_mgr_set_io_pad_mode(enum dss_io_pad_mode mode)
 {
 	u32 l;
 	int gpout0, gpout1;
@@ -2908,11 +2908,28 @@ void dispc_mgr_set_io_pad_mode(enum dss_io_pad_mode mode)
 	dispc_write_reg(DISPC_CONTROL, l);
 }
 
-void dispc_mgr_enable_stallmode(enum omap_channel channel, bool enable)
+static void dispc_mgr_enable_stallmode(enum omap_channel channel, bool enable)
 {
 	mgr_fld_write(channel, DISPC_MGR_FLD_STALLMODE, enable);
 }
 
+void dispc_mgr_set_lcd_config(enum omap_channel channel,
+		const struct dss_lcd_mgr_config *config)
+{
+	dispc_mgr_set_io_pad_mode(config->io_pad_mode);
+
+	dispc_mgr_enable_stallmode(channel, config->stallmode);
+	dispc_mgr_enable_fifohandcheck(channel, config->fifohandcheck);
+
+	dispc_mgr_set_clock_div(channel, &config->clock_info);
+
+	dispc_mgr_set_tft_data_lines(channel, config->video_port_width);
+
+	dispc_lcd_enable_signal_polarity(config->lcden_sig_polarity);
+
+	dispc_mgr_set_lcd_type_tft(channel);
+}
+
 static bool _dispc_mgr_size_ok(u16 width, u16 height)
 {
 	return width <= dss_feat_get_param_max(FEAT_PARAM_MGR_WIDTH) &&
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index d1e7bea077a..959718a7de3 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -409,7 +409,6 @@ void dispc_runtime_put(void);
 void dispc_enable_sidle(void);
 void dispc_disable_sidle(void);
 
-void dispc_lcd_enable_signal_polarity(bool act_high);
 void dispc_lcd_enable_signal(bool enable);
 void dispc_pck_free_enable(bool enable);
 void dispc_enable_fifomerge(bool enable);
@@ -436,7 +435,6 @@ int dispc_ovl_enable(enum omap_plane plane, bool enable);
 void dispc_ovl_set_channel_out(enum omap_plane plane,
 		enum omap_channel channel);
 
-void dispc_mgr_enable_fifohandcheck(enum omap_channel channel, bool enable);
 u32 dispc_mgr_get_vsync_irq(enum omap_channel channel);
 u32 dispc_mgr_get_framedone_irq(enum omap_channel channel);
 bool dispc_mgr_go_busy(enum omap_channel channel);
@@ -444,10 +442,8 @@ void dispc_mgr_go(enum omap_channel channel);
 bool dispc_mgr_is_enabled(enum omap_channel channel);
 void dispc_mgr_enable(enum omap_channel channel, bool enable);
 bool dispc_mgr_is_channel_enabled(enum omap_channel channel);
-void dispc_mgr_set_io_pad_mode(enum dss_io_pad_mode mode);
-void dispc_mgr_enable_stallmode(enum omap_channel channel, bool enable);
-void dispc_mgr_set_tft_data_lines(enum omap_channel channel, u8 data_lines);
-void dispc_mgr_set_lcd_type_tft(enum omap_channel channel);
+void dispc_mgr_set_lcd_config(enum omap_channel channel,
+		const struct dss_lcd_mgr_config *config);
 void dispc_mgr_set_timings(enum omap_channel channel,
 		const struct omap_video_timings *timings);
 unsigned long dispc_mgr_lclk_rate(enum omap_channel channel);
-- 
cgit v1.2.3


From 881c98ff62e0106c3cf6aa521f7c8baf98ebb501 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 10:35:34 +0300
Subject: OMAPDSS: remove declarations for non-existing funcs

dss_mgr_set_device and dss_mgr_unset_device are declared in dss.h, but
the functions do not exist. Remove the declarations.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 959718a7de3..19d56636f5c 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -191,9 +191,6 @@ int dss_mgr_set_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info);
 void dss_mgr_get_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info);
-int dss_mgr_set_device(struct omap_overlay_manager *mgr,
-		struct omap_dss_device *dssdev);
-int dss_mgr_unset_device(struct omap_overlay_manager *mgr);
 int dss_mgr_set_output(struct omap_overlay_manager *mgr,
 		struct omap_dss_output *output);
 int dss_mgr_unset_output(struct omap_overlay_manager *mgr);
-- 
cgit v1.2.3


From 16bf20c79e684b2f3d589c72e16295b0c56d8798 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 15 Oct 2012 15:33:22 +0300
Subject: OMAPDSS: DISPC: remove struct omap_overlay use

dispc_ovl_setup() uses struct omap_overlay to get the caps for the
overlay. We can change the code to get the caps directly from dss
features, thus removing the dependency to struct omap_overlay.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index b65591ebaf2..9c0ea805b7e 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2504,7 +2504,7 @@ int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
 		bool mem_to_mem)
 {
 	int r;
-	const struct omap_overlay *ovl = omap_dss_get_overlay(plane);
+	enum omap_overlay_caps caps = dss_feat_get_overlay_caps(plane);
 	enum omap_channel channel;
 
 	channel = dispc_ovl_get_channel_out(plane);
@@ -2515,7 +2515,7 @@ int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
 		oi->pos_y, oi->width, oi->height, oi->out_width, oi->out_height,
 		oi->color_mode, oi->rotation, oi->mirror, channel, replication);
 
-	r = dispc_ovl_setup_common(plane, ovl->caps, oi->paddr, oi->p_uv_addr,
+	r = dispc_ovl_setup_common(plane, caps, oi->paddr, oi->p_uv_addr,
 		oi->screen_width, oi->pos_x, oi->pos_y, oi->width, oi->height,
 		oi->out_width, oi->out_height, oi->color_mode, oi->rotation,
 		oi->mirror, oi->zorder, oi->pre_mult_alpha, oi->global_alpha,
-- 
cgit v1.2.3


From 653985112c35b48670e645fb76815e185dd89d81 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 11:44:17 +0300
Subject: OMAPDSS: DISPC: cleanup lcd and digit enable

dispc.c's functions to enable LCD and DIGIT outputs can be cleaned up a
bit by using common functions to set the enable bit and to check if the
output is enabled.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 27 ++++++++++-----------------
 1 file changed, 10 insertions(+), 17 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 9c0ea805b7e..bfa0d1d184c 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2590,13 +2590,18 @@ static void dispc_disable_isr(void *data, u32 mask)
 	complete(compl);
 }
 
-static void _enable_lcd_out(enum omap_channel channel, bool enable)
+static void _enable_mgr_out(enum omap_channel channel, bool enable)
 {
 	mgr_fld_write(channel, DISPC_MGR_FLD_ENABLE, enable);
 	/* flush posted write */
 	mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE);
 }
 
+bool dispc_mgr_is_enabled(enum omap_channel channel)
+{
+	return !!mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE);
+}
+
 static void dispc_mgr_enable_lcd_out(enum omap_channel channel, bool enable)
 {
 	struct completion frame_done_completion;
@@ -2607,7 +2612,7 @@ static void dispc_mgr_enable_lcd_out(enum omap_channel channel, bool enable)
 	/* When we disable LCD output, we need to wait until frame is done.
 	 * Otherwise the DSS is still working, and turning off the clocks
 	 * prevents DSS from going to OFF mode */
-	is_on = mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE);
+	is_on = dispc_mgr_is_enabled(channel);
 
 	irq = mgr_desc[channel].framedone_irq;
 
@@ -2621,7 +2626,7 @@ static void dispc_mgr_enable_lcd_out(enum omap_channel channel, bool enable)
 			DSSERR("failed to register FRAMEDONE isr\n");
 	}
 
-	_enable_lcd_out(channel, enable);
+	_enable_mgr_out(channel, enable);
 
 	if (!enable && is_on) {
 		if (!wait_for_completion_timeout(&frame_done_completion,
@@ -2636,13 +2641,6 @@ static void dispc_mgr_enable_lcd_out(enum omap_channel channel, bool enable)
 	}
 }
 
-static void _enable_digit_out(bool enable)
-{
-	REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1);
-	/* flush posted write */
-	dispc_read_reg(DISPC_CONTROL);
-}
-
 static void dispc_mgr_enable_digit_out(bool enable)
 {
 	struct completion frame_done_completion;
@@ -2651,7 +2649,7 @@ static void dispc_mgr_enable_digit_out(bool enable)
 	u32 irq_mask;
 	int num_irqs;
 
-	if (REG_GET(DISPC_CONTROL, 1, 1) == enable)
+	if (dispc_mgr_is_enabled(OMAP_DSS_CHANNEL_DIGIT) == enable)
 		return;
 
 	src = dss_get_hdmi_venc_clk_source();
@@ -2688,7 +2686,7 @@ static void dispc_mgr_enable_digit_out(bool enable)
 	if (r)
 		DSSERR("failed to register %x isr\n", irq_mask);
 
-	_enable_digit_out(enable);
+	_enable_mgr_out(OMAP_DSS_CHANNEL_DIGIT, enable);
 
 	for (i = 0; i < num_irqs; ++i) {
 		if (!wait_for_completion_timeout(&frame_done_completion,
@@ -2712,11 +2710,6 @@ static void dispc_mgr_enable_digit_out(bool enable)
 	}
 }
 
-bool dispc_mgr_is_enabled(enum omap_channel channel)
-{
-	return !!mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE);
-}
-
 void dispc_mgr_enable(enum omap_channel channel, bool enable)
 {
 	if (dss_mgr_is_lcd(channel))
-- 
cgit v1.2.3


From cb699200af1626a4c718018f28b7737bf56496e5 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 17 Oct 2012 10:38:52 +0300
Subject: OMAPDSS: DISPC: add dispc_mgr_get_sync_lost_irq()

Add function that returns the sync lost irq mask for the given channel.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 5 +++++
 drivers/video/omap2/dss/dss.h   | 1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index bfa0d1d184c..c50270e0afb 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -542,6 +542,11 @@ u32 dispc_mgr_get_framedone_irq(enum omap_channel channel)
 	return mgr_desc[channel].framedone_irq;
 }
 
+u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel)
+{
+	return mgr_desc[channel].sync_lost_irq;
+}
+
 u32 dispc_wb_get_framedone_irq(void)
 {
 	return DISPC_IRQ_FRAMEDONEWB;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 19d56636f5c..bf9b7a4c506 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -434,6 +434,7 @@ void dispc_ovl_set_channel_out(enum omap_plane plane,
 
 u32 dispc_mgr_get_vsync_irq(enum omap_channel channel);
 u32 dispc_mgr_get_framedone_irq(enum omap_channel channel);
+u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel);
 bool dispc_mgr_go_busy(enum omap_channel channel);
 void dispc_mgr_go(enum omap_channel channel);
 bool dispc_mgr_is_enabled(enum omap_channel channel);
-- 
cgit v1.2.3


From b111224900ed743cc5a5f4feafdc910b9e8e736c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 12:48:31 +0300
Subject: OMAPDSS: DISPC: cleanup lcd/digit enable/disable

We currently have a single function to enable and disable the manager
output for LCD and DIGIT. The functions are a bit complex, as handling
both enable and disable require some extra steps to ensure that the
output is enabled or disabled properly without errors before exiting the
function.

The code can be made simpler to understand by splitting the functions
into separate enable and disable functions. We'll also clean up the
comments and some parameter names at the same time.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c |   6 +-
 drivers/video/omap2/dss/dispc.c | 184 +++++++++++++++++++++++++---------------
 drivers/video/omap2/dss/dss.h   |   3 +-
 3 files changed, 122 insertions(+), 71 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 7cdc09641b1..7a61a2f7765 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -772,7 +772,7 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 	if (!dss_data.irq_enabled && need_isr())
 		dss_register_vsync_isr();
 
-	dispc_mgr_enable(mgr->id, true);
+	dispc_mgr_enable(mgr->id);
 
 	mgr_clear_shadow_dirty(mgr);
 
@@ -1027,7 +1027,7 @@ int dss_mgr_enable(struct omap_overlay_manager *mgr)
 	spin_unlock_irqrestore(&data_lock, flags);
 
 	if (!mgr_manual_update(mgr))
-		dispc_mgr_enable(mgr->id, true);
+		dispc_mgr_enable(mgr->id);
 
 out:
 	mutex_unlock(&apply_lock);
@@ -1052,7 +1052,7 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 		goto out;
 
 	if (!mgr_manual_update(mgr))
-		dispc_mgr_enable(mgr->id, false);
+		dispc_mgr_disable(mgr->id);
 
 	spin_lock_irqsave(&data_lock, flags);
 
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index c50270e0afb..6dd9eb4a2c5 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2589,7 +2589,7 @@ int dispc_ovl_enable(enum omap_plane plane, bool enable)
 	return 0;
 }
 
-static void dispc_disable_isr(void *data, u32 mask)
+static void dispc_mgr_disable_isr(void *data, u32 mask)
 {
 	struct completion *compl = data;
 	complete(compl);
@@ -2607,122 +2607,172 @@ bool dispc_mgr_is_enabled(enum omap_channel channel)
 	return !!mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE);
 }
 
-static void dispc_mgr_enable_lcd_out(enum omap_channel channel, bool enable)
+static void dispc_mgr_enable_lcd_out(enum omap_channel channel)
 {
-	struct completion frame_done_completion;
-	bool is_on;
+	_enable_mgr_out(channel, true);
+}
+
+static void dispc_mgr_disable_lcd_out(enum omap_channel channel)
+{
+	DECLARE_COMPLETION_ONSTACK(framedone_compl);
 	int r;
 	u32 irq;
 
-	/* When we disable LCD output, we need to wait until frame is done.
-	 * Otherwise the DSS is still working, and turning off the clocks
-	 * prevents DSS from going to OFF mode */
-	is_on = dispc_mgr_is_enabled(channel);
+	if (dispc_mgr_is_enabled(channel) == false)
+		return;
 
-	irq = mgr_desc[channel].framedone_irq;
+	/*
+	 * When we disable LCD output, we need to wait for FRAMEDONE to know
+	 * that DISPC has finished with the LCD output.
+	 */
 
-	if (!enable && is_on) {
-		init_completion(&frame_done_completion);
+	irq = dispc_mgr_get_framedone_irq(channel);
 
-		r = omap_dispc_register_isr(dispc_disable_isr,
-				&frame_done_completion, irq);
+	r = omap_dispc_register_isr(dispc_mgr_disable_isr, &framedone_compl,
+			irq);
+	if (r)
+		DSSERR("failed to register FRAMEDONE isr\n");
 
-		if (r)
-			DSSERR("failed to register FRAMEDONE isr\n");
+	_enable_mgr_out(channel, false);
+
+	/* if we couldn't register for framedone, just sleep and exit */
+	if (r) {
+		msleep(100);
+		return;
 	}
 
-	_enable_mgr_out(channel, enable);
+	if (!wait_for_completion_timeout(&framedone_compl,
+				msecs_to_jiffies(100)))
+		DSSERR("timeout waiting for FRAME DONE\n");
 
-	if (!enable && is_on) {
-		if (!wait_for_completion_timeout(&frame_done_completion,
-					msecs_to_jiffies(100)))
-			DSSERR("timeout waiting for FRAME DONE\n");
+	r = omap_dispc_unregister_isr(dispc_mgr_disable_isr, &framedone_compl,
+			irq);
+	if (r)
+		DSSERR("failed to unregister FRAMEDONE isr\n");
+}
 
-		r = omap_dispc_unregister_isr(dispc_disable_isr,
-				&frame_done_completion, irq);
+static void dispc_digit_out_enable_isr(void *data, u32 mask)
+{
+	struct completion *compl = data;
 
-		if (r)
-			DSSERR("failed to unregister FRAMEDONE isr\n");
+	/* ignore any sync lost interrupts */
+	if (mask & (DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD))
+		complete(compl);
+}
+
+static void dispc_mgr_enable_digit_out(void)
+{
+	DECLARE_COMPLETION_ONSTACK(vsync_compl);
+	int r;
+	u32 irq_mask;
+
+	if (dispc_mgr_is_enabled(OMAP_DSS_CHANNEL_DIGIT) == true)
+		return;
+
+	/*
+	 * Digit output produces some sync lost interrupts during the first
+	 * frame when enabling. Those need to be ignored, so we register for the
+	 * sync lost irq to prevent the error handler from triggering.
+	 */
+
+	irq_mask = dispc_mgr_get_vsync_irq(OMAP_DSS_CHANNEL_DIGIT) |
+		dispc_mgr_get_sync_lost_irq(OMAP_DSS_CHANNEL_DIGIT);
+
+	r = omap_dispc_register_isr(dispc_digit_out_enable_isr, &vsync_compl,
+			irq_mask);
+	if (r) {
+		DSSERR("failed to register %x isr\n", irq_mask);
+		return;
 	}
+
+	_enable_mgr_out(OMAP_DSS_CHANNEL_DIGIT, true);
+
+	/* wait for the first evsync */
+	if (!wait_for_completion_timeout(&vsync_compl, msecs_to_jiffies(100)))
+		DSSERR("timeout waiting for digit out to start\n");
+
+	r = omap_dispc_unregister_isr(dispc_digit_out_enable_isr, &vsync_compl,
+			irq_mask);
+	if (r)
+		DSSERR("failed to unregister %x isr\n", irq_mask);
 }
 
-static void dispc_mgr_enable_digit_out(bool enable)
+static void dispc_mgr_disable_digit_out(void)
 {
-	struct completion frame_done_completion;
+	DECLARE_COMPLETION_ONSTACK(framedone_compl);
 	enum dss_hdmi_venc_clk_source_select src;
 	int r, i;
 	u32 irq_mask;
 	int num_irqs;
 
-	if (dispc_mgr_is_enabled(OMAP_DSS_CHANNEL_DIGIT) == enable)
+	if (dispc_mgr_is_enabled(OMAP_DSS_CHANNEL_DIGIT) == false)
 		return;
 
 	src = dss_get_hdmi_venc_clk_source();
 
-	if (enable) {
-		unsigned long flags;
-		/* When we enable digit output, we'll get an extra digit
-		 * sync lost interrupt, that we need to ignore */
-		spin_lock_irqsave(&dispc.irq_lock, flags);
-		dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT;
-		_omap_dispc_set_irqs();
-		spin_unlock_irqrestore(&dispc.irq_lock, flags);
-	}
-
-	/* When we disable digit output, we need to wait until fields are done.
-	 * Otherwise the DSS is still working, and turning off the clocks
-	 * prevents DSS from going to OFF mode. And when enabling, we need to
-	 * wait for the extra sync losts */
-	init_completion(&frame_done_completion);
+	/*
+	 * When we disable the digit output, we need to wait for FRAMEDONE to
+	 * know that DISPC has finished with the output. For analog tv out we'll
+	 * use vsync, as omap2/3 don't have framedone for TV.
+	 */
 
-	if (src == DSS_HDMI_M_PCLK && enable == false) {
+	if (src == DSS_HDMI_M_PCLK) {
 		irq_mask = DISPC_IRQ_FRAMEDONETV;
 		num_irqs = 1;
 	} else {
-		irq_mask = DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD;
-		/* XXX I understand from TRM that we should only wait for the
-		 * current field to complete. But it seems we have to wait for
-		 * both fields */
+		irq_mask = dispc_mgr_get_vsync_irq(OMAP_DSS_CHANNEL_DIGIT);
+		/*
+		 * We need to wait for both even and odd vsyncs. Note that this
+		 * is not totally reliable, as we could get a vsync interrupt
+		 * before we disable the output, which leads to timeout in the
+		 * wait_for_completion.
+		 */
 		num_irqs = 2;
 	}
 
-	r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion,
+	r = omap_dispc_register_isr(dispc_mgr_disable_isr, &framedone_compl,
 			irq_mask);
 	if (r)
 		DSSERR("failed to register %x isr\n", irq_mask);
 
-	_enable_mgr_out(OMAP_DSS_CHANNEL_DIGIT, enable);
+	_enable_mgr_out(OMAP_DSS_CHANNEL_DIGIT, false);
+
+	/* if we couldn't register the irq, just sleep and exit */
+	if (r) {
+		msleep(100);
+		return;
+	}
 
 	for (i = 0; i < num_irqs; ++i) {
-		if (!wait_for_completion_timeout(&frame_done_completion,
+		if (!wait_for_completion_timeout(&framedone_compl,
 					msecs_to_jiffies(100)))
-			DSSERR("timeout waiting for digit out to %s\n",
-					enable ? "start" : "stop");
+			DSSERR("timeout waiting for digit out to stop\n");
 	}
 
-	r = omap_dispc_unregister_isr(dispc_disable_isr, &frame_done_completion,
+	r = omap_dispc_unregister_isr(dispc_mgr_disable_isr, &framedone_compl,
 			irq_mask);
 	if (r)
 		DSSERR("failed to unregister %x isr\n", irq_mask);
+}
 
-	if (enable) {
-		unsigned long flags;
-		spin_lock_irqsave(&dispc.irq_lock, flags);
-		dispc.irq_error_mask |= DISPC_IRQ_SYNC_LOST_DIGIT;
-		dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT);
-		_omap_dispc_set_irqs();
-		spin_unlock_irqrestore(&dispc.irq_lock, flags);
-	}
+void dispc_mgr_enable(enum omap_channel channel)
+{
+	if (dss_mgr_is_lcd(channel))
+		dispc_mgr_enable_lcd_out(channel);
+	else if (channel == OMAP_DSS_CHANNEL_DIGIT)
+		dispc_mgr_enable_digit_out();
+	else
+		WARN_ON(1);
 }
 
-void dispc_mgr_enable(enum omap_channel channel, bool enable)
+void dispc_mgr_disable(enum omap_channel channel)
 {
 	if (dss_mgr_is_lcd(channel))
-		dispc_mgr_enable_lcd_out(channel, enable);
+		dispc_mgr_disable_lcd_out(channel);
 	else if (channel == OMAP_DSS_CHANNEL_DIGIT)
-		dispc_mgr_enable_digit_out(enable);
+		dispc_mgr_disable_digit_out();
 	else
-		BUG();
+		WARN_ON(1);
 }
 
 void dispc_wb_enable(bool enable)
@@ -2739,7 +2789,7 @@ void dispc_wb_enable(bool enable)
 	if (!enable && is_on) {
 		init_completion(&frame_done_completion);
 
-		r = omap_dispc_register_isr(dispc_disable_isr,
+		r = omap_dispc_register_isr(dispc_mgr_disable_isr,
 				&frame_done_completion, irq);
 		if (r)
 			DSSERR("failed to register FRAMEDONEWB isr\n");
@@ -2752,7 +2802,7 @@ void dispc_wb_enable(bool enable)
 					msecs_to_jiffies(100)))
 			DSSERR("timeout waiting for FRAMEDONEWB\n");
 
-		r = omap_dispc_unregister_isr(dispc_disable_isr,
+		r = omap_dispc_unregister_isr(dispc_mgr_disable_isr,
 				&frame_done_completion, irq);
 		if (r)
 			DSSERR("failed to unregister FRAMEDONEWB isr\n");
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index bf9b7a4c506..fb891656f1f 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -438,7 +438,8 @@ u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel);
 bool dispc_mgr_go_busy(enum omap_channel channel);
 void dispc_mgr_go(enum omap_channel channel);
 bool dispc_mgr_is_enabled(enum omap_channel channel);
-void dispc_mgr_enable(enum omap_channel channel, bool enable);
+void dispc_mgr_enable(enum omap_channel channel);
+void dispc_mgr_disable(enum omap_channel channel);
 bool dispc_mgr_is_channel_enabled(enum omap_channel channel);
 void dispc_mgr_set_lcd_config(enum omap_channel channel,
 		const struct dss_lcd_mgr_config *config);
-- 
cgit v1.2.3


From 5028ea04c8a8a67fe73f18f5f34386730c9c1bf2 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Thu, 18 Oct 2012 16:51:57 +0530
Subject: OMAPDSS: Remove acb and acbi fields from omap_dss_device

acbi and acb fields were meant for passive matrix panels which omapdss
doesn't support any longer. Remove these fields from omap_dss_device
struct.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 include/video/omapdss.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 88c829466fc..f39e6aabce2 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -621,10 +621,6 @@ struct omap_dss_device {
 	struct {
 		struct omap_video_timings timings;
 
-		int acbi;	/* ac-bias pin transitions per interrupt */
-		/* Unit: line clocks */
-		int acb;	/* ac-bias pin frequency */
-
 		enum omap_dss_dsi_pixel_format dsi_pix_fmt;
 		enum omap_dss_dsi_mode dsi_mode;
 		struct omap_dss_dsi_videomode_timings dsi_vm_timings;
-- 
cgit v1.2.3


From f8fb7d7b7bbaa9336aa44675f56fd2f329516200 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sun, 21 Oct 2012 20:54:26 +0800
Subject: OMAPDSS: HDMI: fix missing unlock on error in hdmi_dump_regs()

Add the missing unlock on the error handling path in function
hdmi_dump_regs().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index adcc906d12f..0d6d7213a85 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -645,8 +645,10 @@ static void hdmi_dump_regs(struct seq_file *s)
 {
 	mutex_lock(&hdmi.lock);
 
-	if (hdmi_runtime_get())
+	if (hdmi_runtime_get()) {
+		mutex_unlock(&hdmi.lock);
 		return;
+	}
 
 	hdmi.ip_data.ops->dump_wrapper(&hdmi.ip_data, s);
 	hdmi.ip_data.ops->dump_pll(&hdmi.ip_data, s);
-- 
cgit v1.2.3


From 998c336d4c7183301ed6a6ca93952f63e3cf694f Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 30 May 2012 13:26:00 +0300
Subject: OMAPDSS: remove omap_dss_device's suspend/resume

The panel drivers contain enable, disable, suspend and resume calls.
The suspend and resume are effectively identical to disable and enable.

This patch removes panel suspend and enable code from omapdss and the
panel drivers, and replaces their use with enable and disable.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/panel-acx565akm.c     | 23 -------
 drivers/video/omap2/displays/panel-generic-dpi.c   | 36 -----------
 .../omap2/displays/panel-lgphilips-lb035q02.c      | 34 ----------
 drivers/video/omap2/displays/panel-n8x0.c          | 50 ---------------
 .../omap2/displays/panel-nec-nl8048hl11-01b.c      | 24 --------
 drivers/video/omap2/displays/panel-picodlp.c       | 44 -------------
 .../video/omap2/displays/panel-sharp-ls037v7dw01.c | 17 -----
 drivers/video/omap2/displays/panel-taal.c          | 72 ----------------------
 drivers/video/omap2/displays/panel-tfp410.c        | 33 ----------
 .../video/omap2/displays/panel-tpo-td043mtea1.c    | 20 ------
 drivers/video/omap2/dss/display.c                  | 15 +----
 drivers/video/omap2/dss/hdmi_panel.c               | 70 +++------------------
 drivers/video/omap2/dss/venc_panel.c               | 19 ------
 drivers/video/omap2/omapfb/omapfb-main.c           |  8 +--
 include/video/omapdss.h                            |  3 -
 15 files changed, 16 insertions(+), 452 deletions(-)

diff --git a/drivers/video/omap2/displays/panel-acx565akm.c b/drivers/video/omap2/displays/panel-acx565akm.c
index c835aa70f96..65eb76c840a 100644
--- a/drivers/video/omap2/displays/panel-acx565akm.c
+++ b/drivers/video/omap2/displays/panel-acx565akm.c
@@ -710,27 +710,6 @@ static void acx_panel_disable(struct omap_dss_device *dssdev)
 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
 }
 
-static int acx_panel_suspend(struct omap_dss_device *dssdev)
-{
-	dev_dbg(&dssdev->dev, "%s\n", __func__);
-	acx_panel_power_off(dssdev);
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-	return 0;
-}
-
-static int acx_panel_resume(struct omap_dss_device *dssdev)
-{
-	int r;
-
-	dev_dbg(&dssdev->dev, "%s\n", __func__);
-	r = acx_panel_power_on(dssdev);
-	if (r)
-		return r;
-
-	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-	return 0;
-}
-
 static void acx_panel_set_timings(struct omap_dss_device *dssdev,
 		struct omap_video_timings *timings)
 {
@@ -752,8 +731,6 @@ static struct omap_dss_driver acx_panel_driver = {
 
 	.enable		= acx_panel_enable,
 	.disable	= acx_panel_disable,
-	.suspend	= acx_panel_suspend,
-	.resume		= acx_panel_resume,
 
 	.set_timings	= acx_panel_set_timings,
 	.check_timings	= acx_panel_check_timings,
diff --git a/drivers/video/omap2/displays/panel-generic-dpi.c b/drivers/video/omap2/displays/panel-generic-dpi.c
index 88295c52681..54ca8ae2107 100644
--- a/drivers/video/omap2/displays/panel-generic-dpi.c
+++ b/drivers/video/omap2/displays/panel-generic-dpi.c
@@ -688,40 +688,6 @@ static void generic_dpi_panel_disable(struct omap_dss_device *dssdev)
 	mutex_unlock(&drv_data->lock);
 }
 
-static int generic_dpi_panel_suspend(struct omap_dss_device *dssdev)
-{
-	struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
-
-	mutex_lock(&drv_data->lock);
-
-	generic_dpi_panel_power_off(dssdev);
-
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-
-	mutex_unlock(&drv_data->lock);
-
-	return 0;
-}
-
-static int generic_dpi_panel_resume(struct omap_dss_device *dssdev)
-{
-	struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
-	int r;
-
-	mutex_lock(&drv_data->lock);
-
-	r = generic_dpi_panel_power_on(dssdev);
-	if (r)
-		goto err;
-
-	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
-err:
-	mutex_unlock(&drv_data->lock);
-
-	return r;
-}
-
 static void generic_dpi_panel_set_timings(struct omap_dss_device *dssdev,
 		struct omap_video_timings *timings)
 {
@@ -769,8 +735,6 @@ static struct omap_dss_driver dpi_driver = {
 
 	.enable		= generic_dpi_panel_enable,
 	.disable	= generic_dpi_panel_disable,
-	.suspend	= generic_dpi_panel_suspend,
-	.resume		= generic_dpi_panel_resume,
 
 	.set_timings	= generic_dpi_panel_set_timings,
 	.get_timings	= generic_dpi_panel_get_timings,
diff --git a/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c b/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c
index 90c1cabf244..ace419b801e 100644
--- a/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c
+++ b/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c
@@ -143,46 +143,12 @@ static void lb035q02_panel_disable(struct omap_dss_device *dssdev)
 	mutex_unlock(&ld->lock);
 }
 
-static int lb035q02_panel_suspend(struct omap_dss_device *dssdev)
-{
-	struct lb035q02_data *ld = dev_get_drvdata(&dssdev->dev);
-
-	mutex_lock(&ld->lock);
-
-	lb035q02_panel_power_off(dssdev);
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-
-	mutex_unlock(&ld->lock);
-	return 0;
-}
-
-static int lb035q02_panel_resume(struct omap_dss_device *dssdev)
-{
-	struct lb035q02_data *ld = dev_get_drvdata(&dssdev->dev);
-	int r;
-
-	mutex_lock(&ld->lock);
-
-	r = lb035q02_panel_power_on(dssdev);
-	if (r)
-		goto err;
-	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
-	mutex_unlock(&ld->lock);
-	return 0;
-err:
-	mutex_unlock(&ld->lock);
-	return r;
-}
-
 static struct omap_dss_driver lb035q02_driver = {
 	.probe		= lb035q02_panel_probe,
 	.remove		= lb035q02_panel_remove,
 
 	.enable		= lb035q02_panel_enable,
 	.disable	= lb035q02_panel_disable,
-	.suspend	= lb035q02_panel_suspend,
-	.resume		= lb035q02_panel_resume,
 
 	.driver         = {
 		.name   = "lgphilips_lb035q02_panel",
diff --git a/drivers/video/omap2/displays/panel-n8x0.c b/drivers/video/omap2/displays/panel-n8x0.c
index 3fc5ad081a2..26532695555 100644
--- a/drivers/video/omap2/displays/panel-n8x0.c
+++ b/drivers/video/omap2/displays/panel-n8x0.c
@@ -574,54 +574,6 @@ static void n8x0_panel_disable(struct omap_dss_device *dssdev)
 	mutex_unlock(&ddata->lock);
 }
 
-static int n8x0_panel_suspend(struct omap_dss_device *dssdev)
-{
-	struct panel_drv_data *ddata = get_drv_data(dssdev);
-
-	dev_dbg(&dssdev->dev, "suspend\n");
-
-	mutex_lock(&ddata->lock);
-
-	rfbi_bus_lock();
-
-	n8x0_panel_power_off(dssdev);
-
-	rfbi_bus_unlock();
-
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-
-	mutex_unlock(&ddata->lock);
-
-	return 0;
-}
-
-static int n8x0_panel_resume(struct omap_dss_device *dssdev)
-{
-	struct panel_drv_data *ddata = get_drv_data(dssdev);
-	int r;
-
-	dev_dbg(&dssdev->dev, "resume\n");
-
-	mutex_lock(&ddata->lock);
-
-	rfbi_bus_lock();
-
-	r = n8x0_panel_power_on(dssdev);
-
-	rfbi_bus_unlock();
-
-	if (r) {
-		mutex_unlock(&ddata->lock);
-		return r;
-	}
-
-	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
-	mutex_unlock(&ddata->lock);
-
-	return 0;
-}
-
 static void n8x0_panel_get_resolution(struct omap_dss_device *dssdev,
 		u16 *xres, u16 *yres)
 {
@@ -683,8 +635,6 @@ static struct omap_dss_driver n8x0_panel_driver = {
 
 	.enable		= n8x0_panel_enable,
 	.disable	= n8x0_panel_disable,
-	.suspend	= n8x0_panel_suspend,
-	.resume		= n8x0_panel_resume,
 
 	.update		= n8x0_panel_update,
 	.sync		= n8x0_panel_sync,
diff --git a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
index 908fd268f3d..2a79c283beb 100644
--- a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
+++ b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
@@ -236,28 +236,6 @@ static void nec_8048_panel_disable(struct omap_dss_device *dssdev)
 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
 }
 
-static int nec_8048_panel_suspend(struct omap_dss_device *dssdev)
-{
-	nec_8048_panel_power_off(dssdev);
-
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-
-	return 0;
-}
-
-static int nec_8048_panel_resume(struct omap_dss_device *dssdev)
-{
-	int r;
-
-	r = nec_8048_panel_power_on(dssdev);
-	if (r)
-		return r;
-
-	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
-	return 0;
-}
-
 static int nec_8048_recommended_bpp(struct omap_dss_device *dssdev)
 {
 	return 16;
@@ -268,8 +246,6 @@ static struct omap_dss_driver nec_8048_driver = {
 	.remove			= nec_8048_panel_remove,
 	.enable			= nec_8048_panel_enable,
 	.disable		= nec_8048_panel_disable,
-	.suspend		= nec_8048_panel_suspend,
-	.resume			= nec_8048_panel_resume,
 	.get_recommended_bpp	= nec_8048_recommended_bpp,
 
 	.driver		= {
diff --git a/drivers/video/omap2/displays/panel-picodlp.c b/drivers/video/omap2/displays/panel-picodlp.c
index 9df87640ddd..e3a6c199613 100644
--- a/drivers/video/omap2/displays/panel-picodlp.c
+++ b/drivers/video/omap2/displays/panel-picodlp.c
@@ -503,47 +503,6 @@ static void picodlp_panel_disable(struct omap_dss_device *dssdev)
 	dev_dbg(&dssdev->dev, "disabling picodlp panel\n");
 }
 
-static int picodlp_panel_suspend(struct omap_dss_device *dssdev)
-{
-	struct picodlp_data *picod = dev_get_drvdata(&dssdev->dev);
-
-	mutex_lock(&picod->lock);
-	/* Turn off DLP Power */
-	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
-		mutex_unlock(&picod->lock);
-		dev_err(&dssdev->dev, "unable to suspend picodlp panel,"
-					" panel is not ACTIVE\n");
-		return -EINVAL;
-	}
-
-	picodlp_panel_power_off(dssdev);
-
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-	mutex_unlock(&picod->lock);
-
-	dev_dbg(&dssdev->dev, "suspending picodlp panel\n");
-	return 0;
-}
-
-static int picodlp_panel_resume(struct omap_dss_device *dssdev)
-{
-	struct picodlp_data *picod = dev_get_drvdata(&dssdev->dev);
-	int r;
-
-	mutex_lock(&picod->lock);
-	if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
-		mutex_unlock(&picod->lock);
-		dev_err(&dssdev->dev, "unable to resume picodlp panel,"
-			" panel is not ACTIVE\n");
-		return -EINVAL;
-	}
-
-	r = picodlp_panel_power_on(dssdev);
-	mutex_unlock(&picod->lock);
-	dev_dbg(&dssdev->dev, "resuming picodlp panel\n");
-	return r;
-}
-
 static void picodlp_get_resolution(struct omap_dss_device *dssdev,
 					u16 *xres, u16 *yres)
 {
@@ -560,9 +519,6 @@ static struct omap_dss_driver picodlp_driver = {
 
 	.get_resolution	= picodlp_get_resolution,
 
-	.suspend	= picodlp_panel_suspend,
-	.resume		= picodlp_panel_resume,
-
 	.driver		= {
 		.name	= "picodlp_panel",
 		.owner	= THIS_MODULE,
diff --git a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
index 1ec3b277ff1..cada8c621e0 100644
--- a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
+++ b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
@@ -194,29 +194,12 @@ static void sharp_ls_panel_disable(struct omap_dss_device *dssdev)
 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
 }
 
-static int sharp_ls_panel_suspend(struct omap_dss_device *dssdev)
-{
-	sharp_ls_power_off(dssdev);
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-	return 0;
-}
-
-static int sharp_ls_panel_resume(struct omap_dss_device *dssdev)
-{
-	int r;
-	r = sharp_ls_power_on(dssdev);
-	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-	return r;
-}
-
 static struct omap_dss_driver sharp_ls_driver = {
 	.probe		= sharp_ls_panel_probe,
 	.remove		= __exit_p(sharp_ls_panel_remove),
 
 	.enable		= sharp_ls_panel_enable,
 	.disable	= sharp_ls_panel_disable,
-	.suspend	= sharp_ls_panel_suspend,
-	.resume		= sharp_ls_panel_resume,
 
 	.driver         = {
 		.name   = "sharp_ls_panel",
diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index f2f644680ca..a32407a5735 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -1245,76 +1245,6 @@ static void taal_disable(struct omap_dss_device *dssdev)
 	mutex_unlock(&td->lock);
 }
 
-static int taal_suspend(struct omap_dss_device *dssdev)
-{
-	struct taal_data *td = dev_get_drvdata(&dssdev->dev);
-	int r;
-
-	dev_dbg(&dssdev->dev, "suspend\n");
-
-	mutex_lock(&td->lock);
-
-	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
-		r = -EINVAL;
-		goto err;
-	}
-
-	taal_cancel_ulps_work(dssdev);
-	taal_cancel_esd_work(dssdev);
-
-	dsi_bus_lock(dssdev);
-
-	r = taal_wake_up(dssdev);
-	if (!r)
-		taal_power_off(dssdev);
-
-	dsi_bus_unlock(dssdev);
-
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-
-	mutex_unlock(&td->lock);
-
-	return 0;
-err:
-	mutex_unlock(&td->lock);
-	return r;
-}
-
-static int taal_resume(struct omap_dss_device *dssdev)
-{
-	struct taal_data *td = dev_get_drvdata(&dssdev->dev);
-	int r;
-
-	dev_dbg(&dssdev->dev, "resume\n");
-
-	mutex_lock(&td->lock);
-
-	if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
-		r = -EINVAL;
-		goto err;
-	}
-
-	dsi_bus_lock(dssdev);
-
-	r = taal_power_on(dssdev);
-
-	dsi_bus_unlock(dssdev);
-
-	if (r) {
-		dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
-	} else {
-		dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-		taal_queue_esd_work(dssdev);
-	}
-
-	mutex_unlock(&td->lock);
-
-	return r;
-err:
-	mutex_unlock(&td->lock);
-	return r;
-}
-
 static void taal_framedone_cb(int err, void *data)
 {
 	struct omap_dss_device *dssdev = data;
@@ -1818,8 +1748,6 @@ static struct omap_dss_driver taal_driver = {
 
 	.enable		= taal_enable,
 	.disable	= taal_disable,
-	.suspend	= taal_suspend,
-	.resume		= taal_resume,
 
 	.update		= taal_update,
 	.sync		= taal_sync,
diff --git a/drivers/video/omap2/displays/panel-tfp410.c b/drivers/video/omap2/displays/panel-tfp410.c
index 383811cf864..8281baafe1e 100644
--- a/drivers/video/omap2/displays/panel-tfp410.c
+++ b/drivers/video/omap2/displays/panel-tfp410.c
@@ -189,37 +189,6 @@ static void tfp410_disable(struct omap_dss_device *dssdev)
 	mutex_unlock(&ddata->lock);
 }
 
-static int tfp410_suspend(struct omap_dss_device *dssdev)
-{
-	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
-
-	mutex_lock(&ddata->lock);
-
-	tfp410_power_off(dssdev);
-
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-
-	mutex_unlock(&ddata->lock);
-
-	return 0;
-}
-
-static int tfp410_resume(struct omap_dss_device *dssdev)
-{
-	struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
-	int r;
-
-	mutex_lock(&ddata->lock);
-
-	r = tfp410_power_on(dssdev);
-	if (r == 0)
-		dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
-	mutex_unlock(&ddata->lock);
-
-	return r;
-}
-
 static void tfp410_set_timings(struct omap_dss_device *dssdev,
 		struct omap_video_timings *timings)
 {
@@ -355,8 +324,6 @@ static struct omap_dss_driver tfp410_driver = {
 
 	.enable		= tfp410_enable,
 	.disable	= tfp410_disable,
-	.suspend	= tfp410_suspend,
-	.resume		= tfp410_resume,
 
 	.set_timings	= tfp410_set_timings,
 	.get_timings	= tfp410_get_timings,
diff --git a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
index b5e6dbc59f0..316b3da6d2c 100644
--- a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
+++ b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c
@@ -401,24 +401,6 @@ static void tpo_td043_disable(struct omap_dss_device *dssdev)
 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
 }
 
-static int tpo_td043_suspend(struct omap_dss_device *dssdev)
-{
-	dev_dbg(&dssdev->dev, "suspend\n");
-
-	tpo_td043_disable_dss(dssdev);
-
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-
-	return 0;
-}
-
-static int tpo_td043_resume(struct omap_dss_device *dssdev)
-{
-	dev_dbg(&dssdev->dev, "resume\n");
-
-	return tpo_td043_enable_dss(dssdev);
-}
-
 static int tpo_td043_probe(struct omap_dss_device *dssdev)
 {
 	struct tpo_td043_device *tpo_td043 = dev_get_drvdata(&dssdev->dev);
@@ -500,8 +482,6 @@ static struct omap_dss_driver tpo_td043_driver = {
 
 	.enable		= tpo_td043_enable,
 	.disable	= tpo_td043_disable,
-	.suspend	= tpo_td043_suspend,
-	.resume		= tpo_td043_resume,
 	.set_mirror	= tpo_td043_set_hmirror,
 	.get_mirror	= tpo_td043_get_hmirror,
 
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index ccf8550fafd..1e587306215 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -449,7 +449,6 @@ void dss_uninit_device(struct platform_device *pdev,
 
 static int dss_suspend_device(struct device *dev, void *data)
 {
-	int r;
 	struct omap_dss_device *dssdev = to_dss_device(dev);
 
 	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
@@ -457,15 +456,7 @@ static int dss_suspend_device(struct device *dev, void *data)
 		return 0;
 	}
 
-	if (!dssdev->driver->suspend) {
-		DSSERR("display '%s' doesn't implement suspend\n",
-				dssdev->name);
-		return -ENOSYS;
-	}
-
-	r = dssdev->driver->suspend(dssdev);
-	if (r)
-		return r;
+	dssdev->driver->disable(dssdev);
 
 	dssdev->activate_after_resume = true;
 
@@ -492,8 +483,8 @@ static int dss_resume_device(struct device *dev, void *data)
 	int r;
 	struct omap_dss_device *dssdev = to_dss_device(dev);
 
-	if (dssdev->activate_after_resume && dssdev->driver->resume) {
-		r = dssdev->driver->resume(dssdev);
+	if (dssdev->activate_after_resume) {
+		r = dssdev->driver->enable(dssdev);
 		if (r)
 			return r;
 	}
diff --git a/drivers/video/omap2/dss/hdmi_panel.c b/drivers/video/omap2/dss/hdmi_panel.c
index 69fb115bab3..3f9a4b947a5 100644
--- a/drivers/video/omap2/dss/hdmi_panel.c
+++ b/drivers/video/omap2/dss/hdmi_panel.c
@@ -280,58 +280,6 @@ static void hdmi_panel_disable(struct omap_dss_device *dssdev)
 	mutex_unlock(&hdmi.lock);
 }
 
-static int hdmi_panel_suspend(struct omap_dss_device *dssdev)
-{
-	int r = 0;
-
-	mutex_lock(&hdmi.lock);
-
-	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
-		r = -EINVAL;
-		goto err;
-	}
-
-	/*
-	 * TODO: notify audio users that the display was suspended. For now,
-	 * disable audio locally to not break our audio state machine.
-	 */
-	hdmi_panel_audio_disable(dssdev);
-
-	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-	omapdss_hdmi_display_disable(dssdev);
-
-err:
-	mutex_unlock(&hdmi.lock);
-
-	return r;
-}
-
-static int hdmi_panel_resume(struct omap_dss_device *dssdev)
-{
-	int r = 0;
-
-	mutex_lock(&hdmi.lock);
-
-	if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
-		r = -EINVAL;
-		goto err;
-	}
-
-	r = omapdss_hdmi_display_enable(dssdev);
-	if (r) {
-		DSSERR("failed to power on\n");
-		goto err;
-	}
-	/* TODO: notify audio users that the panel resumed. */
-
-	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
-err:
-	mutex_unlock(&hdmi.lock);
-
-	return r;
-}
-
 static void hdmi_get_timings(struct omap_dss_device *dssdev,
 			struct omap_video_timings *timings)
 {
@@ -379,10 +327,13 @@ static int hdmi_check_timings(struct omap_dss_device *dssdev,
 static int hdmi_read_edid(struct omap_dss_device *dssdev, u8 *buf, int len)
 {
 	int r;
+	bool need_enable;
 
 	mutex_lock(&hdmi.lock);
 
-	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
+	need_enable = dssdev->state == OMAP_DSS_DISPLAY_DISABLED;
+
+	if (need_enable) {
 		r = omapdss_hdmi_display_enable(dssdev);
 		if (r)
 			goto err;
@@ -390,8 +341,7 @@ static int hdmi_read_edid(struct omap_dss_device *dssdev, u8 *buf, int len)
 
 	r = omapdss_hdmi_read_edid(buf, len);
 
-	if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED ||
-			dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
+	if (need_enable)
 		omapdss_hdmi_display_disable(dssdev);
 err:
 	mutex_unlock(&hdmi.lock);
@@ -402,10 +352,13 @@ err:
 static bool hdmi_detect(struct omap_dss_device *dssdev)
 {
 	int r;
+	bool need_enable;
 
 	mutex_lock(&hdmi.lock);
 
-	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
+	need_enable = dssdev->state == OMAP_DSS_DISPLAY_DISABLED;
+
+	if (need_enable) {
 		r = omapdss_hdmi_display_enable(dssdev);
 		if (r)
 			goto err;
@@ -413,8 +366,7 @@ static bool hdmi_detect(struct omap_dss_device *dssdev)
 
 	r = omapdss_hdmi_detect();
 
-	if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED ||
-			dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
+	if (need_enable)
 		omapdss_hdmi_display_disable(dssdev);
 err:
 	mutex_unlock(&hdmi.lock);
@@ -427,8 +379,6 @@ static struct omap_dss_driver hdmi_driver = {
 	.remove		= hdmi_panel_remove,
 	.enable		= hdmi_panel_enable,
 	.disable	= hdmi_panel_disable,
-	.suspend	= hdmi_panel_suspend,
-	.resume		= hdmi_panel_resume,
 	.get_timings	= hdmi_get_timings,
 	.set_timings	= hdmi_set_timings,
 	.check_timings	= hdmi_check_timings,
diff --git a/drivers/video/omap2/dss/venc_panel.c b/drivers/video/omap2/dss/venc_panel.c
index d55b8784ecf..0d2b1a0834a 100644
--- a/drivers/video/omap2/dss/venc_panel.c
+++ b/drivers/video/omap2/dss/venc_panel.c
@@ -157,12 +157,6 @@ static void venc_panel_disable(struct omap_dss_device *dssdev)
 	if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
 		goto end;
 
-	if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) {
-		/* suspended is the same as disabled with venc */
-		dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
-		goto end;
-	}
-
 	omapdss_venc_display_disable(dssdev);
 
 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
@@ -170,17 +164,6 @@ end:
 	mutex_unlock(&venc_panel.lock);
 }
 
-static int venc_panel_suspend(struct omap_dss_device *dssdev)
-{
-	venc_panel_disable(dssdev);
-	return 0;
-}
-
-static int venc_panel_resume(struct omap_dss_device *dssdev)
-{
-	return venc_panel_enable(dssdev);
-}
-
 static void venc_panel_set_timings(struct omap_dss_device *dssdev,
 		struct omap_video_timings *timings)
 {
@@ -222,8 +205,6 @@ static struct omap_dss_driver venc_driver = {
 
 	.enable		= venc_panel_enable,
 	.disable	= venc_panel_disable,
-	.suspend	= venc_panel_suspend,
-	.resume		= venc_panel_resume,
 
 	.get_resolution	= omapdss_default_get_resolution,
 	.get_recommended_bpp = omapdss_default_get_recommended_bpp,
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index bc225e46fdd..ba4630830e0 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -1258,11 +1258,10 @@ static int omapfb_blank(int blank, struct fb_info *fbi)
 
 	switch (blank) {
 	case FB_BLANK_UNBLANK:
-		if (display->state != OMAP_DSS_DISPLAY_SUSPENDED)
+		if (display->state == OMAP_DSS_DISPLAY_ACTIVE)
 			goto exit;
 
-		if (display->driver->resume)
-			r = display->driver->resume(display);
+		r = display->driver->enable(display);
 
 		if ((display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) &&
 				d->update_mode == OMAPFB_AUTO_UPDATE &&
@@ -1283,8 +1282,7 @@ static int omapfb_blank(int blank, struct fb_info *fbi)
 		if (d->auto_update_work_enabled)
 			omapfb_stop_auto_update(fbdev, display);
 
-		if (display->driver->suspend)
-			r = display->driver->suspend(display);
+		display->driver->disable(display);
 
 		break;
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 88c829466fc..cdfb22e7fe8 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -158,7 +158,6 @@ enum omap_display_caps {
 enum omap_dss_display_state {
 	OMAP_DSS_DISPLAY_DISABLED = 0,
 	OMAP_DSS_DISPLAY_ACTIVE,
-	OMAP_DSS_DISPLAY_SUSPENDED,
 };
 
 enum omap_dss_audio_state {
@@ -686,8 +685,6 @@ struct omap_dss_driver {
 
 	int (*enable)(struct omap_dss_device *display);
 	void (*disable)(struct omap_dss_device *display);
-	int (*suspend)(struct omap_dss_device *display);
-	int (*resume)(struct omap_dss_device *display);
 	int (*run_test)(struct omap_dss_device *display, int test);
 
 	int (*update)(struct omap_dss_device *dssdev,
-- 
cgit v1.2.3


From b2c7d54f72c1c588e8851c882f0465705f5e9e55 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 18 Oct 2012 13:46:29 +0300
Subject: OMAPDSS: get the dss version from core pdev

The output drivers get the omapdss hw version from the platform data for
their respective output device. This doesn't work with DT, as there's no
platform data for them.

Add a new function, omapdss_get_version(), which returns the dss version
from the core device, which will have platform data on DT also. The
function is exported so that users of omapdss can also use it.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/core.c  | 9 ++++++++-
 drivers/video/omap2/dss/dispc.c | 3 +--
 drivers/video/omap2/dss/dss.c   | 3 +--
 drivers/video/omap2/dss/hdmi.c  | 3 +--
 include/video/omapdss.h         | 2 ++
 5 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 00aa026e307..685d9a957b1 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -58,6 +58,13 @@ const char *dss_get_default_display_name(void)
 	return core.default_display_name;
 }
 
+enum omapdss_version omapdss_get_version(void)
+{
+	struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
+	return pdata->version;
+}
+EXPORT_SYMBOL(omapdss_get_version);
+
 /* REGULATORS */
 
 struct regulator *dss_get_vdds_dsi(void)
@@ -232,7 +239,7 @@ static int __init omap_dss_probe(struct platform_device *pdev)
 
 	core.pdev = pdev;
 
-	dss_features_init(pdata->version);
+	dss_features_init(omapdss_get_version());
 
 	dss_apply_init();
 
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 6dd9eb4a2c5..817d671e2ba 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -4098,7 +4098,6 @@ static const struct dispc_features omap44xx_dispc_feats __initconst = {
 
 static int __init dispc_init_features(struct platform_device *pdev)
 {
-	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
 	const struct dispc_features *src;
 	struct dispc_features *dst;
 
@@ -4108,7 +4107,7 @@ static int __init dispc_init_features(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	switch (pdata->version) {
+	switch (omapdss_get_version()) {
 	case OMAPDSS_VER_OMAP24xx:
 		src = &omap24xx_dispc_feats;
 		break;
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 37ee465c1a0..d90de37288c 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -793,7 +793,6 @@ static const struct dss_features omap54xx_dss_feats __initconst = {
 
 static int __init dss_init_features(struct platform_device *pdev)
 {
-	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
 	const struct dss_features *src;
 	struct dss_features *dst;
 
@@ -803,7 +802,7 @@ static int __init dss_init_features(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	switch (pdata->version) {
+	switch (omapdss_get_version()) {
 	case OMAPDSS_VER_OMAP24xx:
 		src = &omap24xx_dss_feats;
 		break;
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index adcc906d12f..c1c54883fbe 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -323,7 +323,6 @@ static void hdmi_runtime_put(void)
 
 static int __init hdmi_init_display(struct omap_dss_device *dssdev)
 {
-	struct omap_dss_board_info *pdata = hdmi.pdev->dev.platform_data;
 	int r;
 
 	struct gpio gpios[] = {
@@ -334,7 +333,7 @@ static int __init hdmi_init_display(struct omap_dss_device *dssdev)
 
 	DSSDBG("init_display\n");
 
-	dss_init_hdmi_ip_ops(&hdmi.ip_data, pdata->version);
+	dss_init_hdmi_ip_ops(&hdmi.ip_data, omapdss_get_version());
 
 	if (hdmi.vdda_hdmi_dac_reg == NULL) {
 		struct regulator *reg;
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index cdfb22e7fe8..eac5f256225 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -742,6 +742,8 @@ struct omap_dss_driver {
 
 };
 
+enum omapdss_version omapdss_get_version(void);
+
 int omap_dss_register_driver(struct omap_dss_driver *);
 void omap_dss_unregister_driver(struct omap_dss_driver *);
 
-- 
cgit v1.2.3


From dba01625a3c94e58b98f3f2d7058237a5ea02fa2 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 23 Oct 2012 16:28:23 +0300
Subject: OMAPDSS: remove dispc_irq_handler declaration

dss.h contains dispc_irq_handler declaration, even if the function is
dispc.c internal. Remove the declaration.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index fb891656f1f..00e0a36723b 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -398,7 +398,6 @@ void dpi_uninit_platform_driver(void) __exit;
 int dispc_init_platform_driver(void) __init;
 void dispc_uninit_platform_driver(void) __exit;
 void dispc_dump_clocks(struct seq_file *s);
-void dispc_irq_handler(void);
 
 int dispc_runtime_get(void);
 void dispc_runtime_put(void);
-- 
cgit v1.2.3


From c31cba8af8c2fde418c146e3ead341d5053f3225 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 23 Oct 2012 11:50:10 +0300
Subject: OMAPDSS: DISPC: fix dispc_mgr_lclk_rate for DIGIT output

dispc_mgr_lclk_rate() cannot currently be called with DIGIT channel
parameter, even if dispc_ovl_lclk_rate() can. Fix this by making
dispc_mgr_lclk_rate() handle DIGIT channel also.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 49 +++++++++++++++++++++--------------------
 1 file changed, 25 insertions(+), 24 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 817d671e2ba..198e321d9cf 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3167,28 +3167,32 @@ unsigned long dispc_mgr_lclk_rate(enum omap_channel channel)
 	unsigned long r;
 	u32 l;
 
-	l = dispc_read_reg(DISPC_DIVISORo(channel));
+	if (dss_mgr_is_lcd(channel)) {
+		l = dispc_read_reg(DISPC_DIVISORo(channel));
 
-	lcd = FLD_GET(l, 23, 16);
+		lcd = FLD_GET(l, 23, 16);
 
-	switch (dss_get_lcd_clk_source(channel)) {
-	case OMAP_DSS_CLK_SRC_FCK:
-		r = clk_get_rate(dispc.dss_clk);
-		break;
-	case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
-		dsidev = dsi_get_dsidev_from_id(0);
-		r = dsi_get_pll_hsdiv_dispc_rate(dsidev);
-		break;
-	case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
-		dsidev = dsi_get_dsidev_from_id(1);
-		r = dsi_get_pll_hsdiv_dispc_rate(dsidev);
-		break;
-	default:
-		BUG();
-		return 0;
-	}
+		switch (dss_get_lcd_clk_source(channel)) {
+		case OMAP_DSS_CLK_SRC_FCK:
+			r = clk_get_rate(dispc.dss_clk);
+			break;
+		case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
+			dsidev = dsi_get_dsidev_from_id(0);
+			r = dsi_get_pll_hsdiv_dispc_rate(dsidev);
+			break;
+		case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
+			dsidev = dsi_get_dsidev_from_id(1);
+			r = dsi_get_pll_hsdiv_dispc_rate(dsidev);
+			break;
+		default:
+			BUG();
+			return 0;
+		}
 
-	return r / lcd;
+		return r / lcd;
+	} else {
+		return dispc_fclk_rate();
+	}
 }
 
 unsigned long dispc_mgr_pclk_rate(enum omap_channel channel)
@@ -3247,12 +3251,9 @@ static unsigned long dispc_plane_lclk_rate(enum omap_plane plane)
 {
 	enum omap_channel channel = dispc_ovl_get_channel_out(plane);
 
-	if (dss_mgr_is_lcd(channel))
-		return dispc_mgr_lclk_rate(channel);
-	else
-		return dispc_fclk_rate();
-
+	return dispc_mgr_lclk_rate(channel);
 }
+
 static void dispc_dump_clocks_channel(struct seq_file *s, enum omap_channel channel)
 {
 	int lcd, pcd;
-- 
cgit v1.2.3


From 2bbcce5e0b47e0de83a1b799b9e164f8c5b9b634 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 29 Oct 2012 12:40:46 +0200
Subject: OMAPDSS: export dss_get_def_display_name()

Export dss_get_def_display_name() with the name of
omapdss_get_def_display_name() so that omapfb can use it after the next
patch which moves default display handling to omapfb.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/core.c    | 3 ++-
 drivers/video/omap2/dss/display.c | 2 +-
 drivers/video/omap2/dss/dpi.c     | 2 +-
 drivers/video/omap2/dss/dsi.c     | 2 +-
 drivers/video/omap2/dss/dss.h     | 1 -
 drivers/video/omap2/dss/hdmi.c    | 2 +-
 drivers/video/omap2/dss/rfbi.c    | 2 +-
 drivers/video/omap2/dss/sdi.c     | 2 +-
 drivers/video/omap2/dss/venc.c    | 2 +-
 include/video/omapdss.h           | 1 +
 10 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 685d9a957b1..a2ea684169e 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -53,10 +53,11 @@ static char *def_disp_name;
 module_param_named(def_disp, def_disp_name, charp, 0);
 MODULE_PARM_DESC(def_disp, "default display name");
 
-const char *dss_get_default_display_name(void)
+const char *omapdss_get_default_display_name(void)
 {
 	return core.default_display_name;
 }
+EXPORT_SYMBOL(omapdss_get_default_display_name);
 
 enum omapdss_version omapdss_get_version(void)
 {
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index 1e587306215..90edd718e9e 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -394,7 +394,7 @@ int dss_init_device(struct platform_device *pdev,
 {
 	struct device_attribute *attr;
 	int i, r;
-	const char *def_disp_name = dss_get_default_display_name();
+	const char *def_disp_name = omapdss_get_default_display_name();
 	bool force;
 
 	force = def_disp_name && strcmp(def_disp_name, dssdev->name) == 0;
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 56748cf8760..11d64b09cff 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -389,7 +389,7 @@ static int __init dpi_init_display(struct omap_dss_device *dssdev)
 static struct omap_dss_device * __init dpi_find_dssdev(struct platform_device *pdev)
 {
 	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
-	const char *def_disp_name = dss_get_default_display_name();
+	const char *def_disp_name = omapdss_get_default_display_name();
 	struct omap_dss_device *def_dssdev;
 	int i;
 
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 7d0db2bf2fc..2ba505b3315 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -5100,7 +5100,7 @@ static struct omap_dss_device * __init dsi_find_dssdev(struct platform_device *p
 {
 	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
 	struct dsi_data *dsi = dsi_get_dsidrv_data(pdev);
-	const char *def_disp_name = dss_get_default_display_name();
+	const char *def_disp_name = omapdss_get_default_display_name();
 	struct omap_dss_device *def_dssdev;
 	int i;
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 00e0a36723b..d468743a209 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -160,7 +160,6 @@ struct seq_file;
 struct platform_device;
 
 /* core */
-const char *dss_get_default_display_name(void);
 struct bus_type *dss_get_bus(void);
 struct regulator *dss_get_vdds_dsi(void);
 struct regulator *dss_get_vdds_sdi(void);
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index c1c54883fbe..54931f14c09 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -910,7 +910,7 @@ int hdmi_audio_config(struct omap_dss_audio *audio)
 static struct omap_dss_device * __init hdmi_find_dssdev(struct platform_device *pdev)
 {
 	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
-	const char *def_disp_name = dss_get_default_display_name();
+	const char *def_disp_name = omapdss_get_default_display_name();
 	struct omap_dss_device *def_dssdev;
 	int i;
 
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 7282e5af3e1..7bfeb13cf3d 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -950,7 +950,7 @@ static int __init rfbi_init_display(struct omap_dss_device *dssdev)
 static struct omap_dss_device * __init rfbi_find_dssdev(struct platform_device *pdev)
 {
 	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
-	const char *def_disp_name = dss_get_default_display_name();
+	const char *def_disp_name = omapdss_get_default_display_name();
 	struct omap_dss_device *def_dssdev;
 	int i;
 
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 7760851f6e5..882ce89765e 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -205,7 +205,7 @@ static int __init sdi_init_display(struct omap_dss_device *dssdev)
 static struct omap_dss_device * __init sdi_find_dssdev(struct platform_device *pdev)
 {
 	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
-	const char *def_disp_name = dss_get_default_display_name();
+	const char *def_disp_name = omapdss_get_default_display_name();
 	struct omap_dss_device *def_dssdev;
 	int i;
 
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 56efa3bb465..e8fddc9012c 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -744,7 +744,7 @@ static void venc_put_clocks(void)
 static struct omap_dss_device * __init venc_find_dssdev(struct platform_device *pdev)
 {
 	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
-	const char *def_disp_name = dss_get_default_display_name();
+	const char *def_disp_name = omapdss_get_default_display_name();
 	struct omap_dss_device *def_dssdev;
 	int i;
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index eac5f256225..bf2c68ad199 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -753,6 +753,7 @@ void omap_dss_put_device(struct omap_dss_device *dssdev);
 struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from);
 struct omap_dss_device *omap_dss_find_device(void *data,
 		int (*match)(struct omap_dss_device *dssdev, void *data));
+const char *omapdss_get_default_display_name(void);
 
 int omap_dss_start_device(struct omap_dss_device *dssdev);
 void omap_dss_stop_device(struct omap_dss_device *dssdev);
-- 
cgit v1.2.3


From 5d89bcc341771d95e3a2996218e5949a6627f59e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 6 Aug 2012 15:27:17 +0300
Subject: OMAPDSS: remove initial display code from omapdss

Currently omapdss driver sets up the initial connections between
overlays, overlay manager and a panel, based on default display
parameter coming from the board file or via module parameters.

This is unnecessary, as it's the higher level component that should
decide what display to use and how. This patch removes the code from
omapdss, and implements similar code to omapfb.

The def_disp module parameter and the default display platform_data
parameter are kept in omapdss, but omapdss doesn't do anything with
them. It will just return the default display name with
dss_get_default_display_name() call, which omapfb uses. This is done to
keep the backward compatibility.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/display.c        | 78 +++-----------------------------
 drivers/video/omap2/omapfb/omapfb-main.c | 77 ++++++++++++++++++++++++++-----
 2 files changed, 73 insertions(+), 82 deletions(-)

diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index 90edd718e9e..6d33112c599 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -320,86 +320,21 @@ void omapdss_default_get_timings(struct omap_dss_device *dssdev,
 }
 EXPORT_SYMBOL(omapdss_default_get_timings);
 
-/*
- * Connect dssdev to a manager if the manager is free or if force is specified.
- * Connect all overlays to that manager if they are free or if force is
- * specified.
- */
-static int dss_init_connections(struct omap_dss_device *dssdev, bool force)
+int dss_init_device(struct platform_device *pdev,
+		struct omap_dss_device *dssdev)
 {
+	struct device_attribute *attr;
 	struct omap_dss_output *out;
-	struct omap_overlay_manager *mgr;
 	int i, r;
 
 	out = omapdss_get_output_from_dssdev(dssdev);
 
-	WARN_ON(dssdev->output);
-	WARN_ON(out->device);
-
 	r = omapdss_output_set_device(out, dssdev);
 	if (r) {
 		DSSERR("failed to connect output to new device\n");
 		return r;
 	}
 
-	mgr = omap_dss_get_overlay_manager(dssdev->channel);
-
-	if (mgr->output && !force)
-		return 0;
-
-	if (mgr->output)
-		mgr->unset_output(mgr);
-
-	r = mgr->set_output(mgr, out);
-	if (r) {
-		DSSERR("failed to connect manager to output of new device\n");
-
-		/* remove the output-device connection we just made */
-		omapdss_output_unset_device(out);
-		return r;
-	}
-
-	for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
-		struct omap_overlay *ovl = omap_dss_get_overlay(i);
-
-		if (!ovl->manager || force) {
-			if (ovl->manager)
-				ovl->unset_manager(ovl);
-
-			r = ovl->set_manager(ovl, mgr);
-			if (r) {
-				DSSERR("failed to set initial overlay\n");
-				return r;
-			}
-		}
-	}
-
-	return 0;
-}
-
-static void dss_uninit_connections(struct omap_dss_device *dssdev)
-{
-	if (dssdev->output) {
-		struct omap_overlay_manager *mgr = dssdev->output->manager;
-
-		if (mgr)
-			mgr->unset_output(mgr);
-
-		omapdss_output_unset_device(dssdev->output);
-	}
-}
-
-int dss_init_device(struct platform_device *pdev,
-		struct omap_dss_device *dssdev)
-{
-	struct device_attribute *attr;
-	int i, r;
-	const char *def_disp_name = omapdss_get_default_display_name();
-	bool force;
-
-	force = def_disp_name && strcmp(def_disp_name, dssdev->name) == 0;
-	dss_init_connections(dssdev, force);
-
 	/* create device sysfs files */
 	i = 0;
 	while ((attr = display_sysfs_attrs[i++]) != NULL) {
@@ -410,7 +345,7 @@ int dss_init_device(struct platform_device *pdev,
 				device_remove_file(&dssdev->dev, attr);
 			}
 
-			dss_uninit_connections(dssdev);
+			omapdss_output_unset_device(dssdev->output);
 
 			DSSERR("failed to create sysfs file\n");
 			return r;
@@ -424,7 +359,7 @@ int dss_init_device(struct platform_device *pdev,
 		while ((attr = display_sysfs_attrs[i++]) != NULL)
 			device_remove_file(&dssdev->dev, attr);
 
-		dss_uninit_connections(dssdev);
+		omapdss_output_unset_device(dssdev->output);
 
 		DSSERR("failed to create sysfs display link\n");
 		return r;
@@ -444,7 +379,8 @@ void dss_uninit_device(struct platform_device *pdev,
 	while ((attr = display_sysfs_attrs[i++]) != NULL)
 		device_remove_file(&dssdev->dev, attr);
 
-	dss_uninit_connections(dssdev);
+	if (dssdev->output)
+		omapdss_output_unset_device(dssdev->output);
 }
 
 static int dss_suspend_device(struct device *dev, void *data)
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index ba4630830e0..af2844a3464 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2369,15 +2369,52 @@ static int omapfb_init_display(struct omapfb2_device *fbdev,
 	return 0;
 }
 
+static int omapfb_init_connections(struct omapfb2_device *fbdev,
+		struct omap_dss_device *dssdev)
+{
+	int i, r;
+	struct omap_overlay_manager *mgr = NULL;
+
+	for (i = 0; i < fbdev->num_managers; i++) {
+		mgr = fbdev->managers[i];
+
+		if (dssdev->channel == mgr->id)
+			break;
+	}
+
+	if (i == fbdev->num_managers)
+		return -ENODEV;
+
+	if (mgr->output)
+		mgr->unset_output(mgr);
+
+	r = mgr->set_output(mgr, dssdev->output);
+	if (r)
+		return r;
+
+	for (i = 0; i < fbdev->num_overlays; i++) {
+		struct omap_overlay *ovl = fbdev->overlays[i];
+
+		if (ovl->manager)
+			ovl->unset_manager(ovl);
+
+		r = ovl->set_manager(ovl, mgr);
+		if (r)
+			dev_warn(fbdev->dev,
+					"failed to connect overlay %s to manager %s\n",
+					ovl->name, mgr->name);
+	}
+
+	return 0;
+}
+
 static int __init omapfb_probe(struct platform_device *pdev)
 {
 	struct omapfb2_device *fbdev = NULL;
 	int r = 0;
 	int i;
-	struct omap_overlay *ovl;
 	struct omap_dss_device *def_display;
 	struct omap_dss_device *dssdev;
-	struct omap_dss_device *ovl_device;
 
 	DBG("omapfb_probe\n");
 
@@ -2445,15 +2482,33 @@ static int __init omapfb_probe(struct platform_device *pdev)
 	for (i = 0; i < fbdev->num_managers; i++)
 		fbdev->managers[i] = omap_dss_get_overlay_manager(i);
 
-	/* gfx overlay should be the default one. find a display
-	 * connected to that, and use it as default display */
-	ovl = omap_dss_get_overlay(0);
-	ovl_device = ovl->get_device(ovl);
-	if (ovl_device) {
-		def_display = ovl_device;
-	} else {
-		dev_warn(&pdev->dev, "cannot find default display\n");
-		def_display = NULL;
+	def_display = NULL;
+
+	for (i = 0; i < fbdev->num_displays; ++i) {
+		struct omap_dss_device *dssdev;
+		const char *def_name;
+
+		def_name = omapdss_get_default_display_name();
+
+		dssdev = fbdev->displays[i].dssdev;
+
+		if (def_name == NULL ||
+			(dssdev->name && strcmp(def_name, dssdev->name) == 0)) {
+			def_display = dssdev;
+			break;
+		}
+	}
+
+	if (def_display == NULL) {
+		dev_err(fbdev->dev, "failed to find default display\n");
+		r = -EINVAL;
+		goto cleanup;
+	}
+
+	r = omapfb_init_connections(fbdev, def_display);
+	if (r) {
+		dev_err(fbdev->dev, "failed to init overlay connections\n");
+		goto cleanup;
 	}
 
 	if (def_mode && strlen(def_mode) > 0) {
-- 
cgit v1.2.3


From 392faa0e1a8de2529183b62409f90997a2c80d3f Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 15 Oct 2012 15:37:22 +0300
Subject: OMAPDSS: DISPC: use dss_feat_get_num_ovls()

Use dss_feat_get_num_ovls() in dispc.c instead of
omap_dss_get_num_overlays() to remove the dependency to overlay.c. Note
that we still have uses of omap_dss_get_num_overlays() in dispc.c, but
these will be moved out in the future patches.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 198e321d9cf..392445aa2da 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1046,7 +1046,7 @@ static void dispc_configure_burst_sizes(void)
 	const int burst_size = BURST_SIZE_X8;
 
 	/* Configure burst size always to maximum size */
-	for (i = 0; i < omap_dss_get_num_overlays(); ++i)
+	for (i = 0; i < dss_feat_get_num_ovls(); ++i)
 		dispc_ovl_set_burst_size(i, burst_size);
 }
 
@@ -1250,7 +1250,7 @@ void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane,
 
 	if (use_fifomerge) {
 		total_fifo_size = 0;
-		for (i = 0; i < omap_dss_get_num_overlays(); ++i)
+		for (i = 0; i < dss_feat_get_num_ovls(); ++i)
 			total_fifo_size += dispc_ovl_get_fifo_size(i);
 	} else {
 		total_fifo_size = ovl_fifo_size;
-- 
cgit v1.2.3


From 3a979f8ad2014f6bff862b01d21ce151aa47968a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 14:14:38 +0300
Subject: OMAPDSS: DISPC: rename dispc_mgr_enable/disable to _sync

The current dispc_mgr_enable/disable function are blocking, and do a bit
too much for omapdrm. We'll expose new enable & disable functions that
will just set the bits in the registers in the following patches.

This patch renames the current functions to *_sync, to make it clear
that they are blocking, and also to free up the dispc_mgr_enable/disable
names for these new functions.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 6 +++---
 drivers/video/omap2/dss/dispc.c | 4 ++--
 drivers/video/omap2/dss/dss.h   | 4 ++--
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 7a61a2f7765..6a214439762 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -772,7 +772,7 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 	if (!dss_data.irq_enabled && need_isr())
 		dss_register_vsync_isr();
 
-	dispc_mgr_enable(mgr->id);
+	dispc_mgr_enable_sync(mgr->id);
 
 	mgr_clear_shadow_dirty(mgr);
 
@@ -1027,7 +1027,7 @@ int dss_mgr_enable(struct omap_overlay_manager *mgr)
 	spin_unlock_irqrestore(&data_lock, flags);
 
 	if (!mgr_manual_update(mgr))
-		dispc_mgr_enable(mgr->id);
+		dispc_mgr_enable_sync(mgr->id);
 
 out:
 	mutex_unlock(&apply_lock);
@@ -1052,7 +1052,7 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 		goto out;
 
 	if (!mgr_manual_update(mgr))
-		dispc_mgr_disable(mgr->id);
+		dispc_mgr_disable_sync(mgr->id);
 
 	spin_lock_irqsave(&data_lock, flags);
 
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 392445aa2da..600a4121c6d 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2755,7 +2755,7 @@ static void dispc_mgr_disable_digit_out(void)
 		DSSERR("failed to unregister %x isr\n", irq_mask);
 }
 
-void dispc_mgr_enable(enum omap_channel channel)
+void dispc_mgr_enable_sync(enum omap_channel channel)
 {
 	if (dss_mgr_is_lcd(channel))
 		dispc_mgr_enable_lcd_out(channel);
@@ -2765,7 +2765,7 @@ void dispc_mgr_enable(enum omap_channel channel)
 		WARN_ON(1);
 }
 
-void dispc_mgr_disable(enum omap_channel channel)
+void dispc_mgr_disable_sync(enum omap_channel channel)
 {
 	if (dss_mgr_is_lcd(channel))
 		dispc_mgr_disable_lcd_out(channel);
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index d468743a209..687eddfc2eb 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -436,8 +436,8 @@ u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel);
 bool dispc_mgr_go_busy(enum omap_channel channel);
 void dispc_mgr_go(enum omap_channel channel);
 bool dispc_mgr_is_enabled(enum omap_channel channel);
-void dispc_mgr_enable(enum omap_channel channel);
-void dispc_mgr_disable(enum omap_channel channel);
+void dispc_mgr_enable_sync(enum omap_channel channel);
+void dispc_mgr_disable_sync(enum omap_channel channel);
 bool dispc_mgr_is_channel_enabled(enum omap_channel channel);
 void dispc_mgr_set_lcd_config(enum omap_channel channel,
 		const struct dss_lcd_mgr_config *config);
-- 
cgit v1.2.3


From f1a813d35f5aa53290814b2c646972b4e89c733e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 14:16:06 +0300
Subject: OMAPDSS: DISPC: make _enable_mgr_out public as "dispc_mgr_enable"

We need a low level manager-enable function for omapdrm. We have that
function as dispc internal func, _enable_mgr_out().

This patch exposes that function, and renames it to dispc_mgr_enable().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 10 +++++-----
 drivers/video/omap2/dss/dss.h   |  1 +
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 600a4121c6d..b5cdbaf61f0 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2595,7 +2595,7 @@ static void dispc_mgr_disable_isr(void *data, u32 mask)
 	complete(compl);
 }
 
-static void _enable_mgr_out(enum omap_channel channel, bool enable)
+void dispc_mgr_enable(enum omap_channel channel, bool enable)
 {
 	mgr_fld_write(channel, DISPC_MGR_FLD_ENABLE, enable);
 	/* flush posted write */
@@ -2609,7 +2609,7 @@ bool dispc_mgr_is_enabled(enum omap_channel channel)
 
 static void dispc_mgr_enable_lcd_out(enum omap_channel channel)
 {
-	_enable_mgr_out(channel, true);
+	dispc_mgr_enable(channel, true);
 }
 
 static void dispc_mgr_disable_lcd_out(enum omap_channel channel)
@@ -2633,7 +2633,7 @@ static void dispc_mgr_disable_lcd_out(enum omap_channel channel)
 	if (r)
 		DSSERR("failed to register FRAMEDONE isr\n");
 
-	_enable_mgr_out(channel, false);
+	dispc_mgr_enable(channel, false);
 
 	/* if we couldn't register for framedone, just sleep and exit */
 	if (r) {
@@ -2685,7 +2685,7 @@ static void dispc_mgr_enable_digit_out(void)
 		return;
 	}
 
-	_enable_mgr_out(OMAP_DSS_CHANNEL_DIGIT, true);
+	dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, true);
 
 	/* wait for the first evsync */
 	if (!wait_for_completion_timeout(&vsync_compl, msecs_to_jiffies(100)))
@@ -2735,7 +2735,7 @@ static void dispc_mgr_disable_digit_out(void)
 	if (r)
 		DSSERR("failed to register %x isr\n", irq_mask);
 
-	_enable_mgr_out(OMAP_DSS_CHANNEL_DIGIT, false);
+	dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, false);
 
 	/* if we couldn't register the irq, just sleep and exit */
 	if (r) {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 687eddfc2eb..85c6fc8cec1 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -435,6 +435,7 @@ u32 dispc_mgr_get_framedone_irq(enum omap_channel channel);
 u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel);
 bool dispc_mgr_go_busy(enum omap_channel channel);
 void dispc_mgr_go(enum omap_channel channel);
+void dispc_mgr_enable(enum omap_channel channel, bool enable);
 bool dispc_mgr_is_enabled(enum omap_channel channel);
 void dispc_mgr_enable_sync(enum omap_channel channel);
 void dispc_mgr_disable_sync(enum omap_channel channel);
-- 
cgit v1.2.3


From 04bd8ac14e6c0d4f75be0950c14f9791ffdc76d7 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 14:13:15 +0300
Subject: OMAPDSS: add dispc_ovl_enabled()

Add new dispc function, dispc_ovl_enabled(). This returns if the overlay
enable bit is set in the registers.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 5 +++++
 drivers/video/omap2/dss/dss.h   | 1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index b5cdbaf61f0..3fd60ce3d71 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2589,6 +2589,11 @@ int dispc_ovl_enable(enum omap_plane plane, bool enable)
 	return 0;
 }
 
+bool dispc_ovl_enabled(enum omap_plane plane)
+{
+	return REG_GET(DISPC_OVL_ATTRIBUTES(plane), 0, 0);
+}
+
 static void dispc_mgr_disable_isr(void *data, u32 mask)
 {
 	struct completion *compl = data;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 85c6fc8cec1..e3e5a63dace 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -427,6 +427,7 @@ int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
 		bool replication, const struct omap_video_timings *mgr_timings,
 		bool mem_to_mem);
 int dispc_ovl_enable(enum omap_plane plane, bool enable);
+bool dispc_ovl_enabled(enum omap_plane plane);
 void dispc_ovl_set_channel_out(enum omap_plane plane,
 		enum omap_channel channel);
 
-- 
cgit v1.2.3


From 4e0397cfa78913f3da08c0aa8076b6b0a3b262a0 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 15:13:14 +0300
Subject: OMAPDSS: DISPC: Add IRQ enable/status helpers

DISPC irqs need to be handled from the compat layer and also in the
future by the omapdrm. To make this possible, this patchs adds a set of
helper functions, so that the irqs can be managed without direct
register reads/writes.

The following functions are added, and all the current direct reg
reads/writes are changed to use these.

u32 dispc_read_irqstatus(void);
void dispc_clear_irqstatus(u32 mask);
u32 dispc_read_irqenable(void);
void dispc_write_irqenable(u32 mask);

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 44 ++++++++++++++++++++++++++++++-----------
 drivers/video/omap2/dss/dss.h   |  4 ++++
 2 files changed, 36 insertions(+), 12 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 3fd60ce3d71..d2948732843 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -497,7 +497,7 @@ static void dispc_restore_context(void)
 	if (dss_has_feature(FEAT_MGR_LCD3))
 		RR(CONTROL3);
 	/* clear spurious SYNC_LOST_DIGIT interrupts */
-	dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT);
+	dispc_clear_irqstatus(DISPC_IRQ_SYNC_LOST_DIGIT);
 
 	/*
 	 * enable last so IRQs won't trigger before
@@ -3627,11 +3627,35 @@ int dispc_mgr_get_clock_div(enum omap_channel channel,
 	return 0;
 }
 
+u32 dispc_read_irqstatus(void)
+{
+	return dispc_read_reg(DISPC_IRQSTATUS);
+}
+
+void dispc_clear_irqstatus(u32 mask)
+{
+	dispc_write_reg(DISPC_IRQSTATUS, mask);
+}
+
+u32 dispc_read_irqenable(void)
+{
+	return dispc_read_reg(DISPC_IRQENABLE);
+}
+
+void dispc_write_irqenable(u32 mask)
+{
+	u32 old_mask = dispc_read_reg(DISPC_IRQENABLE);
+
+	/* clear the irqstatus for newly enabled irqs */
+	dispc_clear_irqstatus((mask ^ old_mask) & mask);
+
+	dispc_write_reg(DISPC_IRQENABLE, mask);
+}
+
 /* dispc.irq_lock has to be locked by the caller */
 static void _omap_dispc_set_irqs(void)
 {
 	u32 mask;
-	u32 old_mask;
 	int i;
 	struct omap_dispc_isr_data *isr_data;
 
@@ -3646,11 +3670,7 @@ static void _omap_dispc_set_irqs(void)
 		mask |= isr_data->mask;
 	}
 
-	old_mask = dispc_read_reg(DISPC_IRQENABLE);
-	/* clear the irqstatus for newly enabled irqs */
-	dispc_write_reg(DISPC_IRQSTATUS, (mask ^ old_mask) & mask);
-
-	dispc_write_reg(DISPC_IRQENABLE, mask);
+	dispc_write_irqenable(mask);
 }
 
 int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
@@ -3777,8 +3797,8 @@ static irqreturn_t omap_dispc_irq_handler(int irq, void *arg)
 
 	spin_lock(&dispc.irq_lock);
 
-	irqstatus = dispc_read_reg(DISPC_IRQSTATUS);
-	irqenable = dispc_read_reg(DISPC_IRQENABLE);
+	irqstatus = dispc_read_irqstatus();
+	irqenable = dispc_read_irqenable();
 
 	/* IRQ is not for us */
 	if (!(irqstatus & irqenable)) {
@@ -3797,9 +3817,9 @@ static irqreturn_t omap_dispc_irq_handler(int irq, void *arg)
 
 	/* Ack the interrupt. Do it here before clocks are possibly turned
 	 * off */
-	dispc_write_reg(DISPC_IRQSTATUS, irqstatus);
+	dispc_clear_irqstatus(irqstatus);
 	/* flush posted write */
-	dispc_read_reg(DISPC_IRQSTATUS);
+	dispc_read_irqstatus();
 
 	/* make a copy and unlock, so that isrs can unregister
 	 * themselves */
@@ -4008,7 +4028,7 @@ static void _omap_dispc_initialize_irq(void)
 
 	/* there's SYNC_LOST_DIGIT waiting after enabling the DSS,
 	 * so clear it */
-	dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS));
+	dispc_clear_irqstatus(dispc_read_irqstatus());
 
 	_omap_dispc_set_irqs();
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index e3e5a63dace..d614fda9275 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -397,6 +397,10 @@ void dpi_uninit_platform_driver(void) __exit;
 int dispc_init_platform_driver(void) __init;
 void dispc_uninit_platform_driver(void) __exit;
 void dispc_dump_clocks(struct seq_file *s);
+u32 dispc_read_irqstatus(void);
+void dispc_clear_irqstatus(u32 mask);
+u32 dispc_read_irqenable(void);
+void dispc_write_irqenable(u32 mask);
 
 int dispc_runtime_get(void);
 void dispc_runtime_put(void);
-- 
cgit v1.2.3


From bb426fc96316b20876acc3289c5115f00918c2bb Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 17:42:10 +0300
Subject: OMAPDSS: HDMI: split power_on/off to two parts

There's currently just one power-on function for HDMI, which enables the
IP and the video output. When reading EDID or detecting if a monitor is
connected, we don't need the video output.

Enabling the video output for these operations is not a big problem in
itself, but the quick enable/disable cycles caused by the operations
seem to cause sync lost errors from time to time. Also, this makes it
possible to read the EDID before the full video path has been set up.

This patch splits the hdmi_power_on into two parts, hdmi_power_on_core
and hdmi_power_on_full. The "full" version does what hdmi_power_on does
currently, and hdmi_power_on_core only enables the core IP. Similar
changes are made for power_off.

Note that these don't allow the HDMI IP to be first enabled, and later
enable the video output, but the HDMI IP will first need to be powered
off before calling the full version. So this is rather limited
implementation, but it fills the needs for reading EDID.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Ricardo Neri <ricardo.neri@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 75 ++++++++++++++++++++++++++----------------
 1 file changed, 46 insertions(+), 29 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 54931f14c09..1226044e550 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -500,12 +500,9 @@ static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy,
 	DSSDBG("range = %d sd = %d\n", pi->dcofreq, pi->regsd);
 }
 
-static int hdmi_power_on(struct omap_dss_device *dssdev)
+static int hdmi_power_on_core(struct omap_dss_device *dssdev)
 {
 	int r;
-	struct omap_video_timings *p;
-	struct omap_overlay_manager *mgr = dssdev->output->manager;
-	unsigned long phy;
 
 	gpio_set_value(hdmi.ct_cp_hpd_gpio, 1);
 	gpio_set_value(hdmi.ls_oe_gpio, 1);
@@ -521,6 +518,46 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
 	if (r)
 		goto err_runtime_get;
 
+	/* Make selection of HDMI in DSS */
+	dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK);
+
+	/* Select the dispc clock source as PRCM clock, to ensure that it is not
+	 * DSI PLL source as the clock selected by DSI PLL might not be
+	 * sufficient for the resolution selected / that can be changed
+	 * dynamically by user. This can be moved to single location , say
+	 * Boardfile.
+	 */
+	dss_select_dispc_clk_source(dssdev->clocks.dispc.dispc_fclk_src);
+
+	return 0;
+
+err_runtime_get:
+	regulator_disable(hdmi.vdda_hdmi_dac_reg);
+err_vdac_enable:
+	gpio_set_value(hdmi.ct_cp_hpd_gpio, 0);
+	gpio_set_value(hdmi.ls_oe_gpio, 0);
+	return r;
+}
+
+static void hdmi_power_off_core(struct omap_dss_device *dssdev)
+{
+	hdmi_runtime_put();
+	regulator_disable(hdmi.vdda_hdmi_dac_reg);
+	gpio_set_value(hdmi.ct_cp_hpd_gpio, 0);
+	gpio_set_value(hdmi.ls_oe_gpio, 0);
+}
+
+static int hdmi_power_on_full(struct omap_dss_device *dssdev)
+{
+	int r;
+	struct omap_video_timings *p;
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
+	unsigned long phy;
+
+	r = hdmi_power_on_core(dssdev);
+	if (r)
+		return r;
+
 	dss_mgr_disable(mgr);
 
 	p = &hdmi.ip_data.cfg.timings;
@@ -548,17 +585,6 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
 
 	hdmi.ip_data.ops->video_configure(&hdmi.ip_data);
 
-	/* Make selection of HDMI in DSS */
-	dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK);
-
-	/* Select the dispc clock source as PRCM clock, to ensure that it is not
-	 * DSI PLL source as the clock selected by DSI PLL might not be
-	 * sufficient for the resolution selected / that can be changed
-	 * dynamically by user. This can be moved to single location , say
-	 * Boardfile.
-	 */
-	dss_select_dispc_clk_source(dssdev->clocks.dispc.dispc_fclk_src);
-
 	/* bypass TV gamma table */
 	dispc_enable_gamma_table(0);
 
@@ -582,16 +608,11 @@ err_vid_enable:
 err_phy_enable:
 	hdmi.ip_data.ops->pll_disable(&hdmi.ip_data);
 err_pll_enable:
-	hdmi_runtime_put();
-err_runtime_get:
-	regulator_disable(hdmi.vdda_hdmi_dac_reg);
-err_vdac_enable:
-	gpio_set_value(hdmi.ct_cp_hpd_gpio, 0);
-	gpio_set_value(hdmi.ls_oe_gpio, 0);
+	hdmi_power_off_core(dssdev);
 	return -EIO;
 }
 
-static void hdmi_power_off(struct omap_dss_device *dssdev)
+static void hdmi_power_off_full(struct omap_dss_device *dssdev)
 {
 	struct omap_overlay_manager *mgr = dssdev->output->manager;
 
@@ -600,12 +621,8 @@ static void hdmi_power_off(struct omap_dss_device *dssdev)
 	hdmi.ip_data.ops->video_disable(&hdmi.ip_data);
 	hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
 	hdmi.ip_data.ops->pll_disable(&hdmi.ip_data);
-	hdmi_runtime_put();
 
-	regulator_disable(hdmi.vdda_hdmi_dac_reg);
-
-	gpio_set_value(hdmi.ct_cp_hpd_gpio, 0);
-	gpio_set_value(hdmi.ls_oe_gpio, 0);
+	hdmi_power_off_core(dssdev);
 }
 
 int omapdss_hdmi_display_check_timing(struct omap_dss_device *dssdev,
@@ -713,7 +730,7 @@ int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev)
 		goto err0;
 	}
 
-	r = hdmi_power_on(dssdev);
+	r = hdmi_power_on_full(dssdev);
 	if (r) {
 		DSSERR("failed to power on device\n");
 		goto err1;
@@ -735,7 +752,7 @@ void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev)
 
 	mutex_lock(&hdmi.lock);
 
-	hdmi_power_off(dssdev);
+	hdmi_power_off_full(dssdev);
 
 	omap_dss_stop_device(dssdev);
 
-- 
cgit v1.2.3


From 4489823ca755dd9931d7f71e5c0a437952a6fdec Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 17:42:27 +0300
Subject: OMAPDSS: HDMI: use core power on/off with edid & detect

This patch makes use of the hdmi_power_[on|off]_core() functions added
in the previous patch. The functions are used when reading EDID or
detecting if a monitor is connected.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Ricardo Neri <ricardo.neri@ti.com>
---
 drivers/video/omap2/dss/dss.h        |  2 ++
 drivers/video/omap2/dss/hdmi.c       | 35 +++++++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/hdmi_panel.c |  8 ++++----
 3 files changed, 41 insertions(+), 4 deletions(-)

diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index d614fda9275..ff7a55b54b8 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -509,6 +509,8 @@ static inline unsigned long hdmi_get_pixel_clock(void)
 #endif
 int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev);
 void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev);
+int omapdss_hdmi_core_enable(struct omap_dss_device *dssdev);
+void omapdss_hdmi_core_disable(struct omap_dss_device *dssdev);
 void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev,
 		struct omap_video_timings *timings);
 int omapdss_hdmi_display_check_timing(struct omap_dss_device *dssdev,
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 1226044e550..81b9fc48295 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -759,6 +759,41 @@ void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev)
 	mutex_unlock(&hdmi.lock);
 }
 
+int omapdss_hdmi_core_enable(struct omap_dss_device *dssdev)
+{
+	int r = 0;
+
+	DSSDBG("ENTER omapdss_hdmi_core_enable\n");
+
+	mutex_lock(&hdmi.lock);
+
+	hdmi.ip_data.hpd_gpio = hdmi.hpd_gpio;
+
+	r = hdmi_power_on_core(dssdev);
+	if (r) {
+		DSSERR("failed to power on device\n");
+		goto err0;
+	}
+
+	mutex_unlock(&hdmi.lock);
+	return 0;
+
+err0:
+	mutex_unlock(&hdmi.lock);
+	return r;
+}
+
+void omapdss_hdmi_core_disable(struct omap_dss_device *dssdev)
+{
+	DSSDBG("Enter omapdss_hdmi_core_disable\n");
+
+	mutex_lock(&hdmi.lock);
+
+	hdmi_power_off_core(dssdev);
+
+	mutex_unlock(&hdmi.lock);
+}
+
 static int hdmi_get_clocks(struct platform_device *pdev)
 {
 	struct clk *clk;
diff --git a/drivers/video/omap2/dss/hdmi_panel.c b/drivers/video/omap2/dss/hdmi_panel.c
index 3f9a4b947a5..a385b69a018 100644
--- a/drivers/video/omap2/dss/hdmi_panel.c
+++ b/drivers/video/omap2/dss/hdmi_panel.c
@@ -334,7 +334,7 @@ static int hdmi_read_edid(struct omap_dss_device *dssdev, u8 *buf, int len)
 	need_enable = dssdev->state == OMAP_DSS_DISPLAY_DISABLED;
 
 	if (need_enable) {
-		r = omapdss_hdmi_display_enable(dssdev);
+		r = omapdss_hdmi_core_enable(dssdev);
 		if (r)
 			goto err;
 	}
@@ -342,7 +342,7 @@ static int hdmi_read_edid(struct omap_dss_device *dssdev, u8 *buf, int len)
 	r = omapdss_hdmi_read_edid(buf, len);
 
 	if (need_enable)
-		omapdss_hdmi_display_disable(dssdev);
+		omapdss_hdmi_core_disable(dssdev);
 err:
 	mutex_unlock(&hdmi.lock);
 
@@ -359,7 +359,7 @@ static bool hdmi_detect(struct omap_dss_device *dssdev)
 	need_enable = dssdev->state == OMAP_DSS_DISPLAY_DISABLED;
 
 	if (need_enable) {
-		r = omapdss_hdmi_display_enable(dssdev);
+		r = omapdss_hdmi_core_enable(dssdev);
 		if (r)
 			goto err;
 	}
@@ -367,7 +367,7 @@ static bool hdmi_detect(struct omap_dss_device *dssdev)
 	r = omapdss_hdmi_detect();
 
 	if (need_enable)
-		omapdss_hdmi_display_disable(dssdev);
+		omapdss_hdmi_core_disable(dssdev);
 err:
 	mutex_unlock(&hdmi.lock);
 
-- 
cgit v1.2.3


From 7a7ce2c771fe7ebcc6ff0ab2bf09b0014087ab9c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 24 Oct 2012 11:55:39 +0300
Subject: OMAPDSS: HDMI: add 1920x1200 video mode

Add 1920x1200 video mode to hdmi driver's static modelist.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Ricardo Neri <ricardo.neri@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 81b9fc48295..9f5c4c25532 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -295,6 +295,12 @@ static const struct hdmi_config vesa_timings[] = {
 			false, },
 		{ 0x55, HDMI_DVI },
 	},
+	{
+		{ 1920, 1200, 154000, 32, 48, 80, 6, 3, 26,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x44, HDMI_DVI },
+	},
 };
 
 static int hdmi_runtime_get(void)
-- 
cgit v1.2.3


From f236b892b1cb736edbb9b61ace60ca4dd862e53a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 24 Oct 2012 11:55:54 +0300
Subject: OMAPDSS: HDMI: make hdmi pclk check more permissive

The hdmi driver tries to find the given video timings from its static
list of timings, to find the required ID for the mode. The check tries
to find exact match for the pixel clock, among other checks.

with omapfb driver there can be some amount of error in the give pixel
clock, as the pixel clock is converted between Hz and ps, thus the
hdmi's check fails to find the mode.

This patch makes the check more allowing, by rounding the pixel clocks
to nearest MHz.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Ricardo Neri <ricardo.neri@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 9f5c4c25532..03440e6c3f1 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -404,7 +404,8 @@ static bool hdmi_timings_compare(struct omap_video_timings *timing1,
 {
 	int timing1_vsync, timing1_hsync, timing2_vsync, timing2_hsync;
 
-	if ((timing2->pixel_clock == timing1->pixel_clock) &&
+	if ((DIV_ROUND_CLOSEST(timing2->pixel_clock, 1000) ==
+			DIV_ROUND_CLOSEST(timing1->pixel_clock, 1000)) &&
 		(timing2->x_res == timing1->x_res) &&
 		(timing2->y_res == timing1->y_res)) {
 
-- 
cgit v1.2.3


From 2b5c0d4fd246a3ec0ab79c6518860c673c4515ef Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 8 Oct 2012 15:38:25 +0300
Subject: OMAPFB: remove use of extended edid block

It seems that using the second EDID block causes more problems than is
of any help. The first mode in the extended block will get
FB_MODE_IS_FIRST set, which will override the first mode from the first
EDID block, thus making the default videomode selection not to work
properly.

This patch removes the use of the extended edid block for now.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-main.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index af2844a3464..24c339df0b8 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2272,9 +2272,6 @@ static int omapfb_find_best_mode(struct omap_dss_device *display,
 
 	fb_edid_to_monspecs(edid, specs);
 
-	if (edid[126] > 0)
-		fb_edid_add_monspecs(edid + 0x80, specs);
-
 	best_xres = 0;
 	best_idx = -1;
 
-- 
cgit v1.2.3


From 5e18e3527c5e7af6ccde475cfea5bfe6f1f0f0da Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 12 Oct 2012 15:44:29 +0300
Subject: OMAPFB: improve mode selection from EDID

The current omapfb code goes over all the modes found from the monitors
EDID data, and searches for a mode that is compatible with the DSS
hardware and has the highest x-res.

While this works ok as such, it proves problematic when using DSI PLL
for pixel clock. Calculating DSI PLL dividers is not the fastest of the
operations, and while doing it for one mode is usually ok, doing it for
20 modes is noticable.

Also, the first mode given in the EDID data should be the native mode of
the monitor, and thus also the best mode, so if that can be used, no
need to look further.

This patch changes the code to use the first mode that is compatible
with the DSS hardware.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-main.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 24c339df0b8..be9096ced79 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2256,7 +2256,7 @@ static int omapfb_find_best_mode(struct omap_dss_device *display,
 {
 	struct fb_monspecs *specs;
 	u8 *edid;
-	int r, i, best_xres, best_idx, len;
+	int r, i, best_idx, len;
 
 	if (!display->driver->read_edid)
 		return -ENODEV;
@@ -2272,7 +2272,6 @@ static int omapfb_find_best_mode(struct omap_dss_device *display,
 
 	fb_edid_to_monspecs(edid, specs);
 
-	best_xres = 0;
 	best_idx = -1;
 
 	for (i = 0; i < specs->modedb_len; ++i) {
@@ -2288,16 +2287,20 @@ static int omapfb_find_best_mode(struct omap_dss_device *display,
 		if (m->xres == 2880 || m->xres == 1440)
 			continue;
 
+		if (m->vmode & FB_VMODE_INTERLACED ||
+				m->vmode & FB_VMODE_DOUBLE)
+			continue;
+
 		fb_videomode_to_omap_timings(m, display, &t);
 
 		r = display->driver->check_timings(display, &t);
-		if (r == 0 && best_xres < m->xres) {
-			best_xres = m->xres;
+		if (r == 0) {
 			best_idx = i;
+			break;
 		}
 	}
 
-	if (best_xres == 0) {
+	if (best_idx == -1) {
 		r = -ENOENT;
 		goto err2;
 	}
-- 
cgit v1.2.3


From 901e5fe5a47d360a8ad6b5fbbe37e107ddb11662 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 30 Nov 2011 17:34:52 +0200
Subject: OMAPDSS: fix DSI2 PLL clk names

dss_generic_clk_source_names is missing the names for clocks from DSI2
PLL. Add them.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index d90de37288c..456118beb1f 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -97,6 +97,8 @@ static const char * const dss_generic_clk_source_names[] = {
 	[OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC]	= "DSI_PLL_HSDIV_DISPC",
 	[OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI]	= "DSI_PLL_HSDIV_DSI",
 	[OMAP_DSS_CLK_SRC_FCK]			= "DSS_FCK",
+	[OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC]	= "DSI_PLL2_HSDIV_DISPC",
+	[OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI]	= "DSI_PLL2_HSDIV_DSI",
 };
 
 static inline void dss_write_reg(const struct dss_reg idx, u32 val)
-- 
cgit v1.2.3


From 4c6c65b013a20054585dfca5cfbf3a2f6393ab50 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 24 Oct 2012 09:20:40 +0300
Subject: OMAPDSS: DISPC: fix loop in error handler

The dispc's error handler has a loop inside another loop, and both use
the same loop variable. This is clearly wrong, and this patch makes a
new variable for the inner loop.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index d2948732843..070ce306da1 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3901,6 +3901,7 @@ static void dispc_error_worker(struct work_struct *work)
 		bit = mgr_desc[i].sync_lost_irq;
 
 		if (bit & errors) {
+			int j;
 			struct omap_dss_device *dssdev = mgr->get_device(mgr);
 			bool enable;
 
@@ -3911,9 +3912,9 @@ static void dispc_error_worker(struct work_struct *work)
 			enable = dssdev->state == OMAP_DSS_DISPLAY_ACTIVE;
 			dssdev->driver->disable(dssdev);
 
-			for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+			for (j = 0; j < omap_dss_get_num_overlays(); ++j) {
 				struct omap_overlay *ovl;
-				ovl = omap_dss_get_overlay(i);
+				ovl = omap_dss_get_overlay(j);
 
 				if (ovl->id != OMAP_DSS_GFX &&
 						ovl->manager == mgr)
-- 
cgit v1.2.3


From b276dd091673589450d56812ffcfddca961c1a41 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 15 Jun 2012 15:34:24 +0300
Subject: OMAPDSS: DISPC: remove dssdev depependency from error handler

The dispc error handler tries to "fix" issues by disabling and enabling
panel. This is problematic, as we're trying to remove the dependency
from omapdss to the omap_dss_devices. It's also racy, and doesn't really
fix anything.

This patch removes the use of omap_dss_device from the error handler,
and just disables and enables the associated overlay manager. This
should produce similar results as the previous solution, without using
dssdev.

However, the error handling is still horrible. But the problem boils
down to one question, to which I don't have a clear answer: what to do
when a HW error happens?

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 070ce306da1..05def42e528 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3902,15 +3902,12 @@ static void dispc_error_worker(struct work_struct *work)
 
 		if (bit & errors) {
 			int j;
-			struct omap_dss_device *dssdev = mgr->get_device(mgr);
-			bool enable;
 
 			DSSERR("SYNC_LOST on channel %s, restarting the output "
 					"with video overlays disabled\n",
 					mgr->name);
 
-			enable = dssdev->state == OMAP_DSS_DISPLAY_ACTIVE;
-			dssdev->driver->disable(dssdev);
+			dss_mgr_disable(mgr);
 
 			for (j = 0; j < omap_dss_get_num_overlays(); ++j) {
 				struct omap_overlay *ovl;
@@ -3918,14 +3915,10 @@ static void dispc_error_worker(struct work_struct *work)
 
 				if (ovl->id != OMAP_DSS_GFX &&
 						ovl->manager == mgr)
-					dispc_ovl_enable(ovl->id, false);
+					ovl->disable(ovl);
 			}
 
-			dispc_mgr_go(mgr->id);
-			msleep(50);
-
-			if (enable)
-				dssdev->driver->enable(dssdev);
+			dss_mgr_enable(mgr);
 		}
 	}
 
@@ -3933,13 +3926,9 @@ static void dispc_error_worker(struct work_struct *work)
 		DSSERR("OCP_ERR\n");
 		for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
 			struct omap_overlay_manager *mgr;
-			struct omap_dss_device *dssdev;
 
 			mgr = omap_dss_get_overlay_manager(i);
-			dssdev = mgr->get_device(mgr);
-
-			if (dssdev && dssdev->driver)
-				dssdev->driver->disable(dssdev);
+			dss_mgr_disable(mgr);
 		}
 	}
 
-- 
cgit v1.2.3


From ffc81fc5f3f6070820cb7ef885daa37545291e97 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 12:14:12 +0300
Subject: OMAPDSS: split hdmi muxing function

Split the omap4_hdmi_mux_pads() function into two parts, one handles the
tpd12s015 gpio muxing, the other handles the hdmi pins.

This is clearer, as hdmi and tpd12s015 are separate devices, and it also
allows us to mux those separately with DT.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Ricardo Neri <ricardo.neri@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/display.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 28f508724a5..282c814ea2e 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -100,17 +100,20 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initconst = {
 	{ "dss_hdmi", "omapdss_hdmi", -1 },
 };
 
-static void __init omap4_hdmi_mux_pads(enum omap_hdmi_flags flags)
+static void __init omap4_tpd12s015_mux_pads(void)
 {
-	u32 reg;
-	u16 control_i2c_1;
-
 	omap_mux_init_signal("hdmi_cec",
 			OMAP_PIN_INPUT_PULLUP);
 	omap_mux_init_signal("hdmi_ddc_scl",
 			OMAP_PIN_INPUT_PULLUP);
 	omap_mux_init_signal("hdmi_ddc_sda",
 			OMAP_PIN_INPUT_PULLUP);
+}
+
+static void __init omap4_hdmi_mux_pads(enum omap_hdmi_flags flags)
+{
+	u32 reg;
+	u16 control_i2c_1;
 
 	/*
 	 * CONTROL_I2C_1: HDMI_DDC_SDA_PULLUPRESX (bit 28) and
@@ -161,8 +164,10 @@ static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
 
 int __init omap_hdmi_init(enum omap_hdmi_flags flags)
 {
-	if (cpu_is_omap44xx())
+	if (cpu_is_omap44xx()) {
 		omap4_hdmi_mux_pads(flags);
+		omap4_tpd12s015_mux_pads();
+	}
 
 	return 0;
 }
-- 
cgit v1.2.3


From 046bc5751d70c9d5356d725e3e16987ed98eb7c8 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 22 Oct 2012 15:57:25 +0300
Subject: OMAPDSS: fix DPI & DSI init order

DPI may use DSI PLL, so it depends on DSI. However, currently DPI driver
is added first, which causes DPI initialization to fail when it tries to
get the DSI PLL.

This patch changes the init order to fix this.

A better solution would be to separate DSI PLL and DSI drivers. They
have dependencies, though, but we could still have DSI PLL as an
independent entity that we could initialize before any of the output
drivers.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/core.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index a2ea684169e..b1a9ce1188f 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -510,6 +510,9 @@ static int __init omap_dss_bus_register(void)
 
 /* INIT */
 static int (*dss_output_drv_reg_funcs[])(void) __initdata = {
+#ifdef CONFIG_OMAP2_DSS_DSI
+	dsi_init_platform_driver,
+#endif
 #ifdef CONFIG_OMAP2_DSS_DPI
 	dpi_init_platform_driver,
 #endif
@@ -522,15 +525,15 @@ static int (*dss_output_drv_reg_funcs[])(void) __initdata = {
 #ifdef CONFIG_OMAP2_DSS_VENC
 	venc_init_platform_driver,
 #endif
-#ifdef CONFIG_OMAP2_DSS_DSI
-	dsi_init_platform_driver,
-#endif
 #ifdef CONFIG_OMAP4_DSS_HDMI
 	hdmi_init_platform_driver,
 #endif
 };
 
 static void (*dss_output_drv_unreg_funcs[])(void) __exitdata = {
+#ifdef CONFIG_OMAP2_DSS_DSI
+	dsi_uninit_platform_driver,
+#endif
 #ifdef CONFIG_OMAP2_DSS_DPI
 	dpi_uninit_platform_driver,
 #endif
@@ -543,9 +546,6 @@ static void (*dss_output_drv_unreg_funcs[])(void) __exitdata = {
 #ifdef CONFIG_OMAP2_DSS_VENC
 	venc_uninit_platform_driver,
 #endif
-#ifdef CONFIG_OMAP2_DSS_DSI
-	dsi_uninit_platform_driver,
-#endif
 #ifdef CONFIG_OMAP4_DSS_HDMI
 	hdmi_uninit_platform_driver,
 #endif
-- 
cgit v1.2.3


From b7f1fe541b01f6edaff0a5dd48027de6ac711ab6 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 12 Oct 2012 15:21:44 +0300
Subject: OMAPDSS: DSI: skip odd dividers when pck >= 100MHz

The DSI PLL and HSDivider can be used to generate the pixel clock for
LCD overlay manager, which then goes to DPI output. On the DPI output
pin the voltage of the signal is shifted from the OMAP's internal
minimal voltage to 1.8V range. The shifting is not instant, and the
higher the clock frequency, the less time there is to shift the signal
to nominal voltage.

If the HSDivider's divider is greater than one and odd, the resulting
pixel clock does not have 50% duty cycle. For example, with a divider of
3, the duty cycle is 33%.

When combining high frequency (in the area of 140MHz+) and non-50% duty
cycle, it has been observed the the shifter does not have enough time to
shift the voltage enough, and this leads to bad signal which is rejected
by monitors.

As a workaround this patch makes the divider calculation skip all odd
dividers when the required pixel clock is over 100MHz. The limit of
100MHz is a guesstimate.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 2ba505b3315..ea5c6603a51 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1386,6 +1386,11 @@ retry:
 				cur.dsi_pll_hsdiv_dispc_clk =
 					cur.clkin4ddr / cur.regm_dispc;
 
+				if (cur.regm_dispc > 1 &&
+						cur.regm_dispc % 2 != 0 &&
+						req_pck >= 1000000)
+					continue;
+
 				/* this will narrow down the search a bit,
 				 * but still give pixclocks below what was
 				 * requested */
-- 
cgit v1.2.3


From 7a98786caa18eaa8a5e61382a575f0b6c8e81c01 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 12 Oct 2012 16:27:28 +0300
Subject: OMAPDSS: DSI: workaround for HSDiv problem

It looks like on many OMAP versions powers for both HSClk and HSDiv to
be enabled to have a functional HSDiv.

This patch fixes the issue by forcing both powers on.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index ea5c6603a51..e773f44b523 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1741,6 +1741,12 @@ int dsi_pll_init(struct platform_device *dsidev, bool enable_hsclk,
 
 	DSSDBG("PLL init\n");
 
+	/*
+	 * It seems that on many OMAPs we need to enable both to have a
+	 * functional HSDivider.
+	 */
+	enable_hsclk = enable_hsdiv = true;
+
 	if (dsi->vdds_dsi_reg == NULL) {
 		struct regulator *vdds_dsi;
 
-- 
cgit v1.2.3


From 930b027eb41e31e86618ecd06cf4acf1e44c136b Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 15 Oct 2012 13:27:04 +0300
Subject: OMAPDSS: add dss_calc_clock_rates() back

dss_calc_clock_rates() was removed earlier as it was not used, but it is
needed for DSI PLL calculations, so this patch adds it back.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.c | 23 +++++++++++++++++++++++
 drivers/video/omap2/dss/dss.h |  1 +
 2 files changed, 24 insertions(+)

diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 456118beb1f..d40653bf7a6 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -432,6 +432,29 @@ enum omap_dss_clk_source dss_get_lcd_clk_source(enum omap_channel channel)
 	}
 }
 
+/* calculate clock rates using dividers in cinfo */
+int dss_calc_clock_rates(struct dss_clock_info *cinfo)
+{
+	if (dss.dpll4_m4_ck) {
+		unsigned long prate;
+
+		if (cinfo->fck_div > dss.feat->fck_div_max ||
+				cinfo->fck_div == 0)
+			return -EINVAL;
+
+		prate = clk_get_rate(clk_get_parent(dss.dpll4_m4_ck));
+
+		cinfo->fck = prate / cinfo->fck_div *
+			dss.feat->dss_fck_multiplier;
+	} else {
+		if (cinfo->fck_div != 0)
+			return -EINVAL;
+		cinfo->fck = clk_get_rate(dss.dss_clk);
+	}
+
+	return 0;
+}
+
 int dss_set_clock_div(struct dss_clock_info *cinfo)
 {
 	if (dss.dpll4_m4_ck) {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index ff7a55b54b8..e637f8d9dcf 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -296,6 +296,7 @@ void dss_set_venc_output(enum omap_dss_venc_type type);
 void dss_set_dac_pwrdn_bgz(bool enable);
 
 unsigned long dss_get_dpll4_rate(void);
+int dss_calc_clock_rates(struct dss_clock_info *cinfo);
 int dss_set_clock_div(struct dss_clock_info *cinfo);
 int dss_calc_clock_div(unsigned long req_pck, struct dss_clock_info *dss_cinfo,
 		struct dispc_clock_info *dispc_cinfo);
-- 
cgit v1.2.3


From 13a1a2b2a68d00d8d81417606571e004e10f6d91 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 22 Oct 2012 16:35:41 +0300
Subject: OMAPDSS: setup default dss fck

We don't currently set the dss fck when starting up. This is not a
problem, as we setup the fck later when configuring the pixel clocks. Or
this is how it was for omap2, for the rest of the omaps this may not be
so.

For DSI, HDMI and also for DPI when using DSI PLL, we don't need to
change the dss fck, and thus it may be left unconfigured. Usually the
dss fck is already setup fine by default, but we can't trust this.

This patch sets the dss fck to maximum at probe time.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index d40653bf7a6..844bb1fda91 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -485,6 +485,36 @@ unsigned long dss_get_dpll4_rate(void)
 		return 0;
 }
 
+static int dss_setup_default_clock(void)
+{
+	unsigned long max_dss_fck, prate;
+	unsigned fck_div;
+	struct dss_clock_info dss_cinfo = { 0 };
+	int r;
+
+	if (dss.dpll4_m4_ck == NULL)
+		return 0;
+
+	max_dss_fck = dss_feat_get_param_max(FEAT_PARAM_DSS_FCK);
+
+	prate = dss_get_dpll4_rate();
+
+	fck_div = DIV_ROUND_UP(prate * dss.feat->dss_fck_multiplier,
+			max_dss_fck);
+
+	dss_cinfo.fck_div = fck_div;
+
+	r = dss_calc_clock_rates(&dss_cinfo);
+	if (r)
+		return r;
+
+	r = dss_set_clock_div(&dss_cinfo);
+	if (r)
+		return r;
+
+	return 0;
+}
+
 int dss_calc_clock_div(unsigned long req_pck, struct dss_clock_info *dss_cinfo,
 		struct dispc_clock_info *dispc_cinfo)
 {
@@ -892,6 +922,10 @@ static int __init omap_dsshw_probe(struct platform_device *pdev)
 	if (r)
 		return r;
 
+	r = dss_setup_default_clock();
+	if (r)
+		goto err_setup_clocks;
+
 	pm_runtime_enable(&pdev->dev);
 
 	r = dss_runtime_get();
@@ -924,6 +958,7 @@ static int __init omap_dsshw_probe(struct platform_device *pdev)
 
 err_runtime_get:
 	pm_runtime_disable(&pdev->dev);
+err_setup_clocks:
 	dss_put_clocks();
 	return r;
 }
-- 
cgit v1.2.3


From a5b8399fb6866be6ca065d8ab5eb7d8775d0ad26 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 22 Oct 2012 16:58:36 +0300
Subject: OMAPDSS: hide dss_select_dispc_clk_source()

dss.c currently exposes functions to configure the dispc source clock
and lcd source clock. There are configured separately from the output
drivers.

However, there is no safe way for the output drivers to handle dispc
clock, as it's shared between the outputs. Thus, if, say, the DSI driver
sets up DSI PLL and configures both the dispc and lcd clock sources to
that DSI PLL, the resulting dispc clock could be too low for, say, HDMI.

Thus the output drivers should really only be concerned about the lcd
clock, which is what the output drivers actually use. There's lot to do
to clean up the dss clock handling, but this patch takes one step
forward and removes the use of dss_select_dispc_clk_source() from the
output drivers.

After this patch, the output drivers only configure the lcd source
clock. On omap4+ the dispc src clock is never changed from the default
PRCM source. On omap3, where the dispc and lcd clocks are actually the
same, setting the lcd clock source sets the dispc clock source.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dpi.c  | 6 ++++--
 drivers/video/omap2/dss/dsi.c  | 3 ---
 drivers/video/omap2/dss/dss.c  | 8 ++++++--
 drivers/video/omap2/dss/dss.h  | 1 -
 drivers/video/omap2/dss/hdmi.c | 8 --------
 5 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 11d64b09cff..8b9be0d3f42 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -77,6 +77,7 @@ static int dpi_set_dsi_clk(struct omap_dss_device *dssdev,
 		unsigned long pck_req, unsigned long *fck, int *lck_div,
 		int *pck_div)
 {
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
 	struct dsi_clock_info dsi_cinfo;
 	struct dispc_clock_info dispc_cinfo;
 	int r;
@@ -90,7 +91,8 @@ static int dpi_set_dsi_clk(struct omap_dss_device *dssdev,
 	if (r)
 		return r;
 
-	dss_select_dispc_clk_source(dssdev->clocks.dispc.dispc_fclk_src);
+	dss_select_lcd_clk_source(mgr->id,
+			dssdev->clocks.dispc.channel.lcd_clk_src);
 
 	dpi.mgr_config.clock_info = dispc_cinfo;
 
@@ -272,7 +274,7 @@ void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
 	dss_mgr_disable(mgr);
 
 	if (dpi_use_dsi_pll(dssdev)) {
-		dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
+		dss_select_lcd_clk_source(mgr->id, OMAP_DSS_CLK_SRC_FCK);
 		dsi_pll_uninit(dpi.dsidev, true);
 		dsi_runtime_put(dpi.dsidev);
 	}
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index e773f44b523..d9797da39e6 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4720,7 +4720,6 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
 	if (r)
 		goto err1;
 
-	dss_select_dispc_clk_source(dssdev->clocks.dispc.dispc_fclk_src);
 	dss_select_dsi_clk_source(dsi->module_id, dssdev->clocks.dsi.dsi_fclk_src);
 	dss_select_lcd_clk_source(mgr->id,
 			dssdev->clocks.dispc.channel.lcd_clk_src);
@@ -4755,7 +4754,6 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
 err3:
 	dsi_cio_uninit(dsidev);
 err2:
-	dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
 	dss_select_dsi_clk_source(dsi->module_id, OMAP_DSS_CLK_SRC_FCK);
 	dss_select_lcd_clk_source(mgr->id, OMAP_DSS_CLK_SRC_FCK);
 
@@ -4782,7 +4780,6 @@ static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev,
 	dsi_vc_enable(dsidev, 2, 0);
 	dsi_vc_enable(dsidev, 3, 0);
 
-	dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
 	dss_select_dsi_clk_source(dsi->module_id, OMAP_DSS_CLK_SRC_FCK);
 	dss_select_lcd_clk_source(mgr->id, OMAP_DSS_CLK_SRC_FCK);
 	dsi_cio_uninit(dsidev);
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 844bb1fda91..df3d89a8c8a 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -304,7 +304,7 @@ static void dss_dump_regs(struct seq_file *s)
 #undef DUMPREG
 }
 
-void dss_select_dispc_clk_source(enum omap_dss_clk_source clk_src)
+static void dss_select_dispc_clk_source(enum omap_dss_clk_source clk_src)
 {
 	struct platform_device *dsidev;
 	int b;
@@ -375,8 +375,10 @@ void dss_select_lcd_clk_source(enum omap_channel channel,
 	struct platform_device *dsidev;
 	int b, ix, pos;
 
-	if (!dss_has_feature(FEAT_LCD_CLK_SRC))
+	if (!dss_has_feature(FEAT_LCD_CLK_SRC)) {
+		dss_select_dispc_clk_source(clk_src);
 		return;
+	}
 
 	switch (clk_src) {
 	case OMAP_DSS_CLK_SRC_FCK:
@@ -935,6 +937,8 @@ static int __init omap_dsshw_probe(struct platform_device *pdev)
 	/* Select DPLL */
 	REG_FLD_MOD(DSS_CONTROL, 0, 0, 0);
 
+	dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
+
 #ifdef CONFIG_OMAP2_DSS_VENC
 	REG_FLD_MOD(DSS_CONTROL, 1, 4, 4);	/* venc dac demen */
 	REG_FLD_MOD(DSS_CONTROL, 1, 3, 3);	/* venc clock 4x enable */
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index e637f8d9dcf..84a7f6a2bfc 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -283,7 +283,6 @@ void dss_sdi_init(int datapairs);
 int dss_sdi_enable(void);
 void dss_sdi_disable(void);
 
-void dss_select_dispc_clk_source(enum omap_dss_clk_source clk_src);
 void dss_select_dsi_clk_source(int dsi_module,
 		enum omap_dss_clk_source clk_src);
 void dss_select_lcd_clk_source(enum omap_channel channel,
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 2aada9db0a0..a43ac3f2a48 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -528,14 +528,6 @@ static int hdmi_power_on_core(struct omap_dss_device *dssdev)
 	/* Make selection of HDMI in DSS */
 	dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK);
 
-	/* Select the dispc clock source as PRCM clock, to ensure that it is not
-	 * DSI PLL source as the clock selected by DSI PLL might not be
-	 * sufficient for the resolution selected / that can be changed
-	 * dynamically by user. This can be moved to single location , say
-	 * Boardfile.
-	 */
-	dss_select_dispc_clk_source(dssdev->clocks.dispc.dispc_fclk_src);
-
 	return 0;
 
 err_runtime_get:
-- 
cgit v1.2.3


From 8a3db406f5046dd14dff0e78cea0ba03efec3668 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 22 Oct 2012 16:03:39 +0300
Subject: OMAPDSS: DPI: use dpi.dsidev to see whether to use dsi pll

Instead of using dpi_use_dsi_pll() to check if dsi pll is to be used, we
can just check if dpi.dsidev != NULL.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dpi.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 8b9be0d3f42..ca5f49c44ec 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -137,7 +137,7 @@ static int dpi_set_mode(struct omap_dss_device *dssdev)
 	unsigned long pck;
 	int r = 0;
 
-	if (dpi_use_dsi_pll(dssdev))
+	if (dpi.dsidev)
 		r = dpi_set_dsi_clk(dssdev, t->pixel_clock * 1000, &fck,
 				&lck_div, &pck_div);
 	else
@@ -216,7 +216,7 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
 	if (r)
 		goto err_src_sel;
 
-	if (dpi_use_dsi_pll(dssdev)) {
+	if (dpi.dsidev) {
 		r = dsi_runtime_get(dpi.dsidev);
 		if (r)
 			goto err_get_dsi;
@@ -244,10 +244,10 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
 
 err_mgr_enable:
 err_set_mode:
-	if (dpi_use_dsi_pll(dssdev))
+	if (dpi.dsidev)
 		dsi_pll_uninit(dpi.dsidev, true);
 err_dsi_pll_init:
-	if (dpi_use_dsi_pll(dssdev))
+	if (dpi.dsidev)
 		dsi_runtime_put(dpi.dsidev);
 err_get_dsi:
 err_src_sel:
@@ -273,7 +273,7 @@ void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
 
 	dss_mgr_disable(mgr);
 
-	if (dpi_use_dsi_pll(dssdev)) {
+	if (dpi.dsidev) {
 		dss_select_lcd_clk_source(mgr->id, OMAP_DSS_CLK_SRC_FCK);
 		dsi_pll_uninit(dpi.dsidev, true);
 		dsi_runtime_put(dpi.dsidev);
@@ -319,7 +319,7 @@ int dpi_check_timings(struct omap_dss_device *dssdev,
 	if (timings->pixel_clock == 0)
 		return -EINVAL;
 
-	if (dpi_use_dsi_pll(dssdev)) {
+	if (dpi.dsidev) {
 		struct dsi_clock_info dsi_cinfo;
 		r = dsi_pll_calc_clock_div_pck(dpi.dsidev,
 				timings->pixel_clock * 1000,
-- 
cgit v1.2.3


From 6061675b3fc83d8d190b87b54f04f0c89f605149 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 30 Oct 2012 12:57:43 +0200
Subject: OMAPDSS: DPI: verify if DSI PLL is operational

The SoCs that have DSI module should have a working DSI PLL. However,
some rare boards have not connected the powers to the DSI PLL.

This patch adds a function that tries to power up the DSI PLL, and
reports if that doesn't succeed. DPI uses this function to fall back to
PRCM clocks if DSI PLL doesn't work.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dpi.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index ca5f49c44ec..6baeb04e60c 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -361,6 +361,28 @@ void omapdss_dpi_set_data_lines(struct omap_dss_device *dssdev, int data_lines)
 }
 EXPORT_SYMBOL(omapdss_dpi_set_data_lines);
 
+static int __init dpi_verify_dsi_pll(struct platform_device *dsidev)
+{
+	int r;
+
+	/* do initial setup with the PLL to see if it is operational */
+
+	r = dsi_runtime_get(dsidev);
+	if (r)
+		return r;
+
+	r = dsi_pll_init(dsidev, 0, 1);
+	if (r) {
+		dsi_runtime_put(dsidev);
+		return r;
+	}
+
+	dsi_pll_uninit(dsidev, true);
+	dsi_runtime_put(dsidev);
+
+	return 0;
+}
+
 static int __init dpi_init_display(struct omap_dss_device *dssdev)
 {
 	DSSDBG("init_display\n");
@@ -383,6 +405,11 @@ static int __init dpi_init_display(struct omap_dss_device *dssdev)
 		enum omap_dss_clk_source dispc_fclk_src =
 			dssdev->clocks.dispc.dispc_fclk_src;
 		dpi.dsidev = dpi_get_dsidev(dispc_fclk_src);
+
+		if (dpi_verify_dsi_pll(dpi.dsidev)) {
+			dpi.dsidev = NULL;
+			DSSWARN("DSI PLL not operational\n");
+		}
 	}
 
 	return 0;
-- 
cgit v1.2.3


From 0e8276ef75f5c7811b038d1d23b2b42c16efc5ac Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 22 Oct 2012 16:12:58 +0300
Subject: OMAPDSS: DPI: always use DSI PLL if available

We currently get the decision whether to use PRCM or DSI PLL clock for
DPI from the board file. This is not a good way to handle it, and it
won't work with device tree.

This patch changes DPI to always use DSI PLL if it's available.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dpi.c | 64 +++++++++++++++++++++++++------------------
 1 file changed, 37 insertions(+), 27 deletions(-)

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 6baeb04e60c..1e103b3135b 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -49,28 +49,30 @@ static struct {
 	struct omap_dss_output output;
 } dpi;
 
-static struct platform_device *dpi_get_dsidev(enum omap_dss_clk_source clk)
+static struct platform_device *dpi_get_dsidev(enum omap_channel channel)
 {
-	int dsi_module;
-
-	dsi_module = clk == OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC ? 0 : 1;
-
-	return dsi_get_dsidev_from_id(dsi_module);
+	switch (channel) {
+	case OMAP_DSS_CHANNEL_LCD:
+		return dsi_get_dsidev_from_id(0);
+	case OMAP_DSS_CHANNEL_LCD2:
+		return dsi_get_dsidev_from_id(1);
+	default:
+		return NULL;
+	}
 }
 
-static bool dpi_use_dsi_pll(struct omap_dss_device *dssdev)
+static enum omap_dss_clk_source dpi_get_alt_clk_src(enum omap_channel channel)
 {
-	if (dssdev->clocks.dispc.dispc_fclk_src ==
-			OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC ||
-			dssdev->clocks.dispc.dispc_fclk_src ==
-			OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC ||
-			dssdev->clocks.dispc.channel.lcd_clk_src ==
-			OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC ||
-			dssdev->clocks.dispc.channel.lcd_clk_src ==
-			OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC)
-		return true;
-	else
-		return false;
+	switch (channel) {
+	case OMAP_DSS_CHANNEL_LCD:
+		return OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC;
+	case OMAP_DSS_CHANNEL_LCD2:
+		return OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC;
+	default:
+		/* this shouldn't happen */
+		WARN_ON(1);
+		return OMAP_DSS_CLK_SRC_FCK;
+	}
 }
 
 static int dpi_set_dsi_clk(struct omap_dss_device *dssdev,
@@ -92,7 +94,7 @@ static int dpi_set_dsi_clk(struct omap_dss_device *dssdev,
 		return r;
 
 	dss_select_lcd_clk_source(mgr->id,
-			dssdev->clocks.dispc.channel.lcd_clk_src);
+			dpi_get_alt_clk_src(mgr->id));
 
 	dpi.mgr_config.clock_info = dispc_cinfo;
 
@@ -385,6 +387,8 @@ static int __init dpi_verify_dsi_pll(struct platform_device *dsidev)
 
 static int __init dpi_init_display(struct omap_dss_device *dssdev)
 {
+	struct platform_device *dsidev;
+
 	DSSDBG("init_display\n");
 
 	if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) &&
@@ -401,17 +405,23 @@ static int __init dpi_init_display(struct omap_dss_device *dssdev)
 		dpi.vdds_dsi_reg = vdds_dsi;
 	}
 
-	if (dpi_use_dsi_pll(dssdev)) {
-		enum omap_dss_clk_source dispc_fclk_src =
-			dssdev->clocks.dispc.dispc_fclk_src;
-		dpi.dsidev = dpi_get_dsidev(dispc_fclk_src);
+	/*
+	 * XXX We shouldn't need dssdev->channel for this. The dsi pll clock
+	 * source for DPI is SoC integration detail, not something that should
+	 * be configured in the dssdev
+	 */
+	dsidev = dpi_get_dsidev(dssdev->channel);
 
-		if (dpi_verify_dsi_pll(dpi.dsidev)) {
-			dpi.dsidev = NULL;
-			DSSWARN("DSI PLL not operational\n");
-		}
+	if (dpi_verify_dsi_pll(dsidev)) {
+		dsidev = NULL;
+		DSSWARN("DSI PLL not operational\n");
 	}
 
+	if (dsidev)
+		DSSDBG("using DSI PLL for DPI clock\n");
+
+	dpi.dsidev = dsidev;
+
 	return 0;
 }
 
-- 
cgit v1.2.3


From 230edc033d9ebb62c1db9579262089fdb2353ee9 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 5 Nov 2012 14:40:19 +0200
Subject: OMAPDSS: DISPC: fix DS variable name

check_horiz_timing_omap3() has a variable named 'DS'. i386 uses DS name
for something else, causing a compilation error. As 'DS' is not a very
good local variable name in the first place, let's change it to 'ds',
fixing the issue.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 05def42e528..33c4403642d 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1999,7 +1999,7 @@ static int check_horiz_timing_omap3(enum omap_plane plane,
 		const struct omap_video_timings *t, u16 pos_x,
 		u16 width, u16 height, u16 out_width, u16 out_height)
 {
-	int DS = DIV_ROUND_UP(height, out_height);
+	const int ds = DIV_ROUND_UP(height, out_height);
 	unsigned long nonactive;
 	static const u8 limits[3] = { 8, 10, 20 };
 	u64 val, blank;
@@ -2026,8 +2026,8 @@ static int check_horiz_timing_omap3(enum omap_plane plane,
 	 */
 	val = div_u64((u64)(nonactive - pos_x) * lclk, pclk);
 	DSSDBG("(nonactive - pos_x) * pcd = %llu max(0, DS - 2) * width = %d\n",
-		val, max(0, DS - 2) * width);
-	if (val < max(0, DS - 2) * width)
+		val, max(0, ds - 2) * width);
+	if (val < max(0, ds - 2) * width)
 		return -EINVAL;
 
 	/*
@@ -2037,8 +2037,8 @@ static int check_horiz_timing_omap3(enum omap_plane plane,
 	 */
 	val =  div_u64((u64)nonactive * lclk, pclk);
 	DSSDBG("nonactive * pcd  = %llu, max(0, DS - 1) * width = %d\n",
-		val, max(0, DS - 1) * width);
-	if (val < max(0, DS - 1) * width)
+		val, max(0, ds - 1) * width);
+	if (val < max(0, ds - 1) * width)
 		return -EINVAL;
 
 	return 0;
-- 
cgit v1.2.3


From 864fa7f46162a32c7c18da0c15d04777aa34ac02 Mon Sep 17 00:00:00 2001
From: Chuansheng Liu <chuansheng.liu@intel.com>
Date: Wed, 7 Nov 2012 01:21:20 +0800
Subject: OMAPDSS: DISPC: Fix the usage of wait_for_completion_timeout

The return value of wait_for_completion_timeout() is always
>= 0 with unsigned int type.

So the condition "ret < 0" or "ret >= 0" is pointless.

Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 33c4403642d..78f78f93a1c 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3963,9 +3963,6 @@ int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout)
 	if (timeout == 0)
 		return -ETIMEDOUT;
 
-	if (timeout == -ERESTARTSYS)
-		return -ERESTARTSYS;
-
 	return 0;
 }
 
-- 
cgit v1.2.3


From 933ed63405da8f7a76676e9e10491d7f3be269d1 Mon Sep 17 00:00:00 2001
From: Chuansheng Liu <chuansheng.liu@intel.com>
Date: Wed, 7 Nov 2012 01:22:35 +0800
Subject: OMAPDSS: APPLY: Fix the usage of wait_for_completion_timeout

The return value of wait_for_completion_timeout() is always
>= 0 with unsigned int type.

So the condition "ret < 0" or "ret >= 0" is pointless.

Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 6a214439762..8d952160915 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -414,8 +414,6 @@ static void wait_pending_extra_info_updates(void)
 	r = wait_for_completion_timeout(&extra_updated_completion, t);
 	if (r == 0)
 		DSSWARN("timeout in wait_pending_extra_info_updates\n");
-	else if (r < 0)
-		DSSERR("wait_pending_extra_info_updates failed: %d\n", r);
 }
 
 int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
-- 
cgit v1.2.3


From af23cb353307c9d69a5d41ce6168c83fe032387d Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 6 Nov 2012 00:19:11 -0600
Subject: OMAPDSS: HDMI: Rename resource variable at probe.

Minor cleanup to give to the resource variable a more proper name.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index a43ac3f2a48..72ab260cfb2 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1050,22 +1050,21 @@ static void __exit hdmi_uninit_output(struct platform_device *pdev)
 /* HDMI HW IP initialisation */
 static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 {
-	struct resource *hdmi_mem;
+	struct resource *res;
 	int r;
 
 	hdmi.pdev = pdev;
 
 	mutex_init(&hdmi.lock);
 
-	hdmi_mem = platform_get_resource(hdmi.pdev, IORESOURCE_MEM, 0);
-	if (!hdmi_mem) {
+	res = platform_get_resource(hdmi.pdev, IORESOURCE_MEM, 0);
+	if (!res) {
 		DSSERR("can't get IORESOURCE_MEM HDMI\n");
 		return -EINVAL;
 	}
 
 	/* Base address taken from platform */
-	hdmi.ip_data.base_wp = ioremap(hdmi_mem->start,
-						resource_size(hdmi_mem));
+	hdmi.ip_data.base_wp = ioremap(res->start, resource_size(res));
 	if (!hdmi.ip_data.base_wp) {
 		DSSERR("can't ioremap WP\n");
 		return -ENOMEM;
-- 
cgit v1.2.3


From 47e443bce78472ecee8d4246ac726f0a9c19cbd1 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 6 Nov 2012 00:19:12 -0600
Subject: OMAPDSS: HDMI: Convert to devm_request_and_ioremap

Using devm_request_and_ioremap provides better memory handling and
improves readability.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 72ab260cfb2..1d04bc0479e 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1064,7 +1064,7 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 	}
 
 	/* Base address taken from platform */
-	hdmi.ip_data.base_wp = ioremap(res->start, resource_size(res));
+	hdmi.ip_data.base_wp = devm_request_and_ioremap(&pdev->dev, res);
 	if (!hdmi.ip_data.base_wp) {
 		DSSERR("can't ioremap WP\n");
 		return -ENOMEM;
@@ -1072,7 +1072,7 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 
 	r = hdmi_get_clocks(pdev);
 	if (r) {
-		iounmap(hdmi.ip_data.base_wp);
+		DSSERR("can't get clocks\n");
 		return r;
 	}
 
@@ -1117,8 +1117,6 @@ static int __exit omapdss_hdmihw_remove(struct platform_device *pdev)
 
 	hdmi_put_clocks();
 
-	iounmap(hdmi.ip_data.base_wp);
-
 	return 0;
 }
 
-- 
cgit v1.2.3


From 7888839e258ee114ca2faabbf741c5001ff668ad Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 6 Nov 2012 00:19:13 -0600
Subject: OMAPDSS: HDMI: Make panel return dssdev register errors

Do not assume blindly that the DSS driver was registered successfully.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi_panel.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi_panel.c b/drivers/video/omap2/dss/hdmi_panel.c
index a385b69a018..dfb8eda81b6 100644
--- a/drivers/video/omap2/dss/hdmi_panel.c
+++ b/drivers/video/omap2/dss/hdmi_panel.c
@@ -404,9 +404,7 @@ int hdmi_panel_init(void)
 	spin_lock_init(&hdmi.audio_lock);
 #endif
 
-	omap_dss_register_driver(&hdmi_driver);
-
-	return 0;
+	return omap_dss_register_driver(&hdmi_driver);
 }
 
 void hdmi_panel_exit(void)
-- 
cgit v1.2.3


From 66a06b0c5997fd45eb22c18e8343a3d3865fd5a1 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 6 Nov 2012 00:19:14 -0600
Subject: OMAPDSS: HDMI: Handle panel init error at probe

Do not blindly assume that the panel could be initialized.

While there, group mutex initialization at a single place.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 1d04bc0479e..31cedbb9f9f 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -60,6 +60,7 @@
 static struct {
 	struct mutex lock;
 	struct platform_device *pdev;
+
 	struct hdmi_ip_data ip_data;
 
 	struct clk *sys_clk;
@@ -1056,6 +1057,7 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 	hdmi.pdev = pdev;
 
 	mutex_init(&hdmi.lock);
+	mutex_init(&hdmi.ip_data.lock);
 
 	res = platform_get_resource(hdmi.pdev, IORESOURCE_MEM, 0);
 	if (!res) {
@@ -1083,9 +1085,11 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 	hdmi.ip_data.pll_offset = HDMI_PLLCTRL;
 	hdmi.ip_data.phy_offset = HDMI_PHY;
 
-	mutex_init(&hdmi.ip_data.lock);
-
-	hdmi_panel_init();
+	r = hdmi_panel_init();
+	if (r) {
+		DSSERR("can't init panel\n");
+		goto err_panel_init;
+	}
 
 	dss_debugfs_create_file("hdmi", hdmi_dump_regs);
 
@@ -1094,6 +1098,10 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 	hdmi_probe_pdata(pdev);
 
 	return 0;
+
+err_panel_init:
+	hdmi_put_clocks();
+	return r;
 }
 
 static int __exit hdmi_remove_child(struct device *dev, void *data)
-- 
cgit v1.2.3


From d18bc45543f5a7571fec2465651c9e88c6d555eb Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 6 Nov 2012 00:19:15 -0600
Subject: OMAPDSS: HDMI: Uninit display on device add error

The display must be uninitialized in order to free the requested GPIOs.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 31cedbb9f9f..edc28842b9f 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1025,6 +1025,7 @@ static void __init hdmi_probe_pdata(struct platform_device *pdev)
 	r = dss_add_device(dssdev);
 	if (r) {
 		DSSERR("device %s register failed: %d\n", dssdev->name, r);
+		hdmi_uninit_display(dssdev);
 		dss_put_device(dssdev);
 		return;
 	}
-- 
cgit v1.2.3


From d7b6f4437fb7796af774c5423a4b9b486b19233f Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 6 Nov 2012 00:19:16 -0600
Subject: OMAPDSS: HDMI: Add op to get audio DMA port address offset

It could be possible that the DMA port differs accross diferent HDMI IPs. Thus,
add an IP-specific function to obtain the address offset and size of the DMA
data port.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss_features.c    | 1 +
 drivers/video/omap2/dss/ti_hdmi.h         | 3 +++
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 9 +++++++++
 3 files changed, 13 insertions(+)

diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 3e8287c8709..8dcecbca46a 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -820,6 +820,7 @@ static const struct ti_hdmi_ip_ops omap4_hdmi_functions = {
 	.audio_start		=       ti_hdmi_4xxx_audio_start,
 	.audio_stop		=       ti_hdmi_4xxx_audio_stop,
 	.audio_config		=	ti_hdmi_4xxx_audio_config,
+	.audio_get_dma_port	=	ti_hdmi_4xxx_audio_get_dma_port,
 #endif
 
 };
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index b046c208cb9..216aa704f9d 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -102,6 +102,8 @@ struct ti_hdmi_ip_ops {
 
 	int (*audio_config)(struct hdmi_ip_data *ip_data,
 		struct omap_dss_audio *audio);
+
+	int (*audio_get_dma_port)(u32 *offset, u32 *size);
 #endif
 
 };
@@ -183,5 +185,6 @@ int ti_hdmi_4xxx_audio_start(struct hdmi_ip_data *ip_data);
 void ti_hdmi_4xxx_audio_stop(struct hdmi_ip_data *ip_data);
 int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
 		struct omap_dss_audio *audio);
+int ti_hdmi_4xxx_audio_get_dma_port(u32 *offset, u32 *size);
 #endif
 #endif
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index a6efff257aa..e18b222ed73 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -1418,4 +1418,13 @@ void ti_hdmi_4xxx_audio_stop(struct hdmi_ip_data *ip_data)
 	REG_FLD_MOD(hdmi_wp_base(ip_data),
 		    HDMI_WP_AUDIO_CTRL, false, 30, 30);
 }
+
+int ti_hdmi_4xxx_audio_get_dma_port(u32 *offset, u32 *size)
+{
+	if (!offset || !size)
+		return -EINVAL;
+	*offset = HDMI_WP_AUDIO_DATA;
+	*size = 4;
+	return 0;
+}
 #endif
-- 
cgit v1.2.3


From 14840b9a83c6a56629db2ba0ec247503e975f143 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 6 Nov 2012 00:19:17 -0600
Subject: OMAPDSS: HDMI: Create platform device for audio support

Creating the accessory devices, such as audio, from the HDMI driver
allows to regard HDMI as a single entity with audio an display
functionality. This intends to follow the design of drivers such
as MFD, in which a single entity handles the creation of the accessory
devices. Such devices are then used by domain-specific drivers; audio in
this case.

Also, this is in line with the DT implementation of HDMI, in which we will
have a single node to describe this feature of the OMAP SoC.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 62 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index edc28842b9f..0c2f35bd502 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -60,6 +60,9 @@
 static struct {
 	struct mutex lock;
 	struct platform_device *pdev;
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+	struct platform_device *audio_pdev;
+#endif
 
 	struct hdmi_ip_data ip_data;
 
@@ -818,6 +821,54 @@ static void hdmi_put_clocks(void)
 }
 
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+static int hdmi_probe_audio(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct platform_device *aud_pdev;
+	u32 port_offset, port_size;
+	struct resource aud_res[2] = {
+		DEFINE_RES_MEM(-1, -1),
+		DEFINE_RES_DMA(-1),
+	};
+
+	res = platform_get_resource(hdmi.pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		DSSERR("can't get IORESOURCE_MEM HDMI\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Pass DMA audio port to audio drivers.
+	 * Audio drivers should not ioremap it.
+	 */
+	hdmi.ip_data.ops->audio_get_dma_port(&port_offset, &port_size);
+
+	aud_res[0].start = res->start + port_offset;
+	aud_res[0].end = aud_res[0].start + port_size - 1;
+
+	res = platform_get_resource(hdmi.pdev, IORESOURCE_DMA, 0);
+	if (!res) {
+		DSSERR("can't get IORESOURCE_DMA HDMI\n");
+		return -EINVAL;
+	}
+
+	/* Pass the audio DMA request resource to audio drivers. */
+	aud_res[1].start = res->start;
+
+	/* create platform device for HDMI audio driver */
+	aud_pdev = platform_device_register_simple("omap_hdmi_audio",
+						   pdev->id, aud_res,
+						   ARRAY_SIZE(aud_res));
+	if (IS_ERR(aud_pdev)) {
+		DSSERR("Can't instantiate hdmi-audio\n");
+		return -ENODEV;
+	}
+
+	hdmi.audio_pdev = aud_pdev;
+
+	return 0;
+}
+
 int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts)
 {
 	u32 deep_color;
@@ -1098,6 +1149,12 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 
 	hdmi_probe_pdata(pdev);
 
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+	r = hdmi_probe_audio(pdev);
+	if (r)
+		DSSWARN("could not create platform device for audio");
+#endif
+
 	return 0;
 
 err_panel_init:
@@ -1114,6 +1171,11 @@ static int __exit hdmi_remove_child(struct device *dev, void *data)
 
 static int __exit omapdss_hdmihw_remove(struct platform_device *pdev)
 {
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+	if (hdmi.audio_pdev != NULL)
+		platform_device_unregister(hdmi.audio_pdev);
+#endif
+
 	device_for_each_child(&pdev->dev, NULL, hdmi_remove_child);
 
 	dss_unregister_child_devices(&pdev->dev);
-- 
cgit v1.2.3


From 5b30b7fb4dc3d63075090b148a43ad72b797cf87 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 7 Nov 2012 08:52:44 +0200
Subject: OMAPDSS: DISPC: fix sparse warning

Fix sparse warning:

drivers/video/omap2/dss/dispc.c:3320:6: warning: symbol
'dispc_dump_irqs' was not declared. Should it be static?

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
---
 drivers/video/omap2/dss/dispc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 78f78f93a1c..bab9d6b95c3 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3317,7 +3317,7 @@ void dispc_dump_clocks(struct seq_file *s)
 }
 
 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
-void dispc_dump_irqs(struct seq_file *s)
+static void dispc_dump_irqs(struct seq_file *s)
 {
 	unsigned long flags;
 	struct dispc_irq_stats stats;
-- 
cgit v1.2.3


From 3758476501ce6381435f60c03ae31268097e2e91 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 6 Nov 2012 21:37:14 -0600
Subject: OMAPDSS: HDMI: Remove __exit macro from hdmi_uninit_display

This function is now used in the driver init path to handle
probe errors properly. Thus, it may be possible to use this function
outside the exit path.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 0c2f35bd502..6cf2fe2ac23 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -365,7 +365,7 @@ static int __init hdmi_init_display(struct omap_dss_device *dssdev)
 	return 0;
 }
 
-static void __exit hdmi_uninit_display(struct omap_dss_device *dssdev)
+static void hdmi_uninit_display(struct omap_dss_device *dssdev)
 {
 	DSSDBG("uninit_display\n");
 
-- 
cgit v1.2.3


From 76eed4bcb6f90e77764ec024411d6b409ce7c8a1 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 5 Nov 2012 13:41:25 +0200
Subject: OMAPDSS: HACK: look for regulators with omap4 names

Normally the omapdss driver gets the regulators using the regulator
names assigned for omapdss. However, in an effort to get a minimal DSS
support for DT enabled kernel on selected boards, we will add omapdss
devices and platform data the old way even for DT kernel. This causes
the problem that omapdss cannot find the regulators using omapdss's
regulator names.

This patch creates a temporary workaround for DSI and HDMI by trying to
get the regulators also using native OMAP4 regulator names.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c  | 8 ++++++++
 drivers/video/omap2/dss/hdmi.c | 4 ++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index d9797da39e6..cf32dc7e70f 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1752,6 +1752,10 @@ int dsi_pll_init(struct platform_device *dsidev, bool enable_hsclk,
 
 		vdds_dsi = regulator_get(&dsi->pdev->dev, "vdds_dsi");
 
+		/* DT HACK: try VCXIO to make omapdss work for o4 sdp/panda */
+		if (IS_ERR(vdds_dsi))
+			vdds_dsi = regulator_get(&dsi->pdev->dev, "VCXIO");
+
 		if (IS_ERR(vdds_dsi)) {
 			DSSERR("can't get VDDS_DSI regulator\n");
 			return PTR_ERR(vdds_dsi);
@@ -4968,6 +4972,10 @@ static int __init dsi_init_display(struct omap_dss_device *dssdev)
 
 		vdds_dsi = regulator_get(&dsi->pdev->dev, "vdds_dsi");
 
+		/* DT HACK: try VCXIO to make omapdss work for o4 sdp/panda */
+		if (IS_ERR(vdds_dsi))
+			vdds_dsi = regulator_get(&dsi->pdev->dev, "VCXIO");
+
 		if (IS_ERR(vdds_dsi)) {
 			DSSERR("can't get VDDS_DSI regulator\n");
 			return PTR_ERR(vdds_dsi);
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 6cf2fe2ac23..49f104e7d1d 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -350,6 +350,10 @@ static int __init hdmi_init_display(struct omap_dss_device *dssdev)
 
 		reg = devm_regulator_get(&hdmi.pdev->dev, "vdda_hdmi_dac");
 
+		/* DT HACK: try VDAC to make omapdss work for o4 sdp/panda */
+		if (IS_ERR(reg))
+			reg = devm_regulator_get(&hdmi.pdev->dev, "VDAC");
+
 		if (IS_ERR(reg)) {
 			DSSERR("can't get VDDA_HDMI_DAC regulator\n");
 			return PTR_ERR(reg);
-- 
cgit v1.2.3


From 5d501085d4a949c1d60e289d5ed3df9e20acc494 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 7 Nov 2012 11:45:02 +0530
Subject: OMAPDSS: DISPC: Fix calc_scaling_44xx() bugs for writeback pipeline

dispc_ovl_calc_scaling_44xx() doesn't work correctly for writeback. There are
two issues with it:

- the function tries to calculate pixel clock for the input plane using
  dispc_plane_pclk_rate(), calling this with writeback as input plane results in
  a BUG(), this function shouldn't be called for writeback at all. Fix this by
  calculating pixel clock only when we are not in mem to mem mode.

- the maximum input_width is the product of the downscale ratio supported and
  the and the given output_width. This was calculated incorrectly by dividing
  output_width with maxdownscale. Fix this.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index bab9d6b95c3..36ecb91b245 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2264,14 +2264,16 @@ static int dispc_ovl_calc_scaling_44xx(enum omap_plane plane,
 	u16 in_height = DIV_ROUND_UP(height, *decim_y);
 	const int maxsinglelinewidth =
 				dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
-	unsigned long pclk = dispc_plane_pclk_rate(plane);
 	const int maxdownscale = dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE);
 
-	if (mem_to_mem)
-		in_width_max = DIV_ROUND_UP(out_width, maxdownscale);
-	else
+	if (mem_to_mem) {
+		in_width_max = out_width * maxdownscale;
+	} else {
+		unsigned long pclk = dispc_plane_pclk_rate(plane);
+
 		in_width_max = dispc_core_clk_rate() /
 					DIV_ROUND_UP(pclk, out_width);
+	}
 
 	*decim_x = DIV_ROUND_UP(width, in_width_max);
 
-- 
cgit v1.2.3


From 1c031441a95eef928220403b6c3a2dd00d09dcdc Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 7 Nov 2012 11:45:03 +0530
Subject: OMAPDSS: DISPC: Don't allow predecimation for writeback

Since writeback writes to a buffer instead of reading from one, predecimation
doesn't make sense for it. Configure the width and height predecimation limits
to 1 if the plane is writeback.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 36ecb91b245..34ada45dfa8 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2315,9 +2315,14 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
 	if ((caps & OMAP_DSS_OVL_CAP_SCALE) == 0)
 		return -EINVAL;
 
-	*x_predecim = max_decim_limit;
-	*y_predecim = (rotation_type == OMAP_DSS_ROT_TILER &&
-			dss_has_feature(FEAT_BURST_2D)) ? 2 : max_decim_limit;
+	if (plane == OMAP_DSS_WB) {
+		*x_predecim = *y_predecim = 1;
+	} else {
+		*x_predecim = max_decim_limit;
+		*y_predecim = (rotation_type == OMAP_DSS_ROT_TILER &&
+				dss_has_feature(FEAT_BURST_2D)) ?
+				2 : max_decim_limit;
+	}
 
 	if (color_mode == OMAP_DSS_COLOR_CLUT1 ||
 	    color_mode == OMAP_DSS_COLOR_CLUT2 ||
-- 
cgit v1.2.3


From 6be0d73e2a5de2e6a2570a48e6e11bbc4563f5e3 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 7 Nov 2012 11:45:04 +0530
Subject: OMAPDSS: DISPC: Use output width and height to calculate row/pix inc
 for writeback

When calculating row and pixel increments for graphics and video pipes, we need
to consider the dimensions of the input frame to know how to read from the
buffer. Hence, we need to calculate these parameters from the input to the
pipeline.

For writeback, the row and pixel increments need to be calculated based on the
output of the writeback pipeline, i.e, the dimensions of the frame after
scaling. Ensure that dispc driver uses values of out_width and out_height when
calling calc_dma/calc_tiler_rotation_offset.

For graphics and video pipes, the original code passed the original height as
frame_height to calc_dma_rotation_offset, and not the predecimated height. This
is left as it is for now. We need to figure out why pre decimated height isn't
needed.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 34ada45dfa8..170c98c17a8 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2381,7 +2381,7 @@ static int dispc_ovl_setup_common(enum omap_plane plane,
 	unsigned offset0, offset1;
 	s32 row_inc;
 	s32 pix_inc;
-	u16 frame_height = height;
+	u16 frame_width, frame_height;
 	unsigned int field_offset = 0;
 	u16 in_height = height;
 	u16 in_width = width;
@@ -2449,20 +2449,28 @@ static int dispc_ovl_setup_common(enum omap_plane plane,
 	row_inc = 0;
 	pix_inc = 0;
 
+	if (plane == OMAP_DSS_WB) {
+		frame_width = out_width;
+		frame_height = out_height;
+	} else {
+		frame_width = in_width;
+		frame_height = height;
+	}
+
 	if (rotation_type == OMAP_DSS_ROT_TILER)
-		calc_tiler_rotation_offset(screen_width, in_width,
+		calc_tiler_rotation_offset(screen_width, frame_width,
 				color_mode, fieldmode, field_offset,
 				&offset0, &offset1, &row_inc, &pix_inc,
 				x_predecim, y_predecim);
 	else if (rotation_type == OMAP_DSS_ROT_DMA)
-		calc_dma_rotation_offset(rotation, mirror,
-				screen_width, in_width, frame_height,
+		calc_dma_rotation_offset(rotation, mirror, screen_width,
+				frame_width, frame_height,
 				color_mode, fieldmode, field_offset,
 				&offset0, &offset1, &row_inc, &pix_inc,
 				x_predecim, y_predecim);
 	else
 		calc_vrfb_rotation_offset(rotation, mirror,
-				screen_width, in_width, frame_height,
+				screen_width, frame_width, frame_height,
 				color_mode, fieldmode, field_offset,
 				&offset0, &offset1, &row_inc, &pix_inc,
 				x_predecim, y_predecim);
-- 
cgit v1.2.3


From 02b5ff1a96af7fab8db602677c220c0a35b1f687 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 7 Nov 2012 14:47:22 +0530
Subject: OMAPDSS: APPLY: Don't treat an overlay's channel out as shadow bits

An overlay's channel out field isn't a shadow register. The TRM says that it's
taken into effect immediately. This understanding was missing and channel out
was treated as a shadow parameter, and in overlay's private data as extra info.

Program channel out bits directly in dss_ovl_set_manager(). In order to do this
safely, we need to be totally sure that the overlay is disabled in hardware. For
auto update managers, we can assume that the overlay was truly disabled at
dss_ovl_unset_manager() through the wait_pending_extra_info_updates() call.
However, when unsetting manager for an overlay that was previously connected to
a manager in manual update, we can't be sure if the overlay is truly disabled.
That is, op->enabled might not reflect the actual state of the overlay in
hardware. The older manager may require a manual update transfer to truly
disable the overlay. We expect the user of OMAPDSS to take care of this, in
OMAPDSS, we make sure that an overlay's manager isn't unset if there if
extra_info is still dirty for that overlay.

The wrong understanding of channel out bits also explains the reason why we see
sync lost when changing an overlay's manager which was previously connected to a
manual update manager. The following sequence of events caused this:

- When we disable the overlay, no register writes are actually done since the
  manager is manual update, op->enabled is set to false, and the
  extra_info_dirty flag is set. However, in hardware, the overlay is still
  enabled in both shadow and working registers.

- When we unset the manager, the software just configures the overlay's manager
  to point to NULL.

- When we set the overlay to a new manager(which is in auto update) through
  dss_ovl_set_manager, the check  for op->enabled passes, the channel field in
  extra info is set to the new manager. When we do an apply on this manager,
  the new channel out field is set in the hardware immediately, and since the
  overlay enable bit is still set in hardware, the new manager sees that the
  overlay is enabled, and tries to retrieve pixels from it, this leads to sync
  lost as it might be in the middle of processing a frame when we set the
  channel out bit.

The solution to this was to ensure that user space does another update after
disabling the overlay, this actually worked because the overlay was now truly
disabled, and an immediate write to channel out didn't impact since the manager
saw the new overlay as disabled, and doesn't try to retrieve pixels from it.

Remove channel as an extra_info field. Make dss_ovl_unset_manager more strict
about the overlay being disabled when detaching the manager. For overlays
connected to a manual update manager, unset_manager fails if we need another
update to disable the overlay.

We still need to a manual update to ensure the overlay is disabled to get change
the overlay's manager. We could work on doing a dummy update by using DISPC's
capability to gate the different video port signals. This is left for later.

Remove the comment about the sync lost issue.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 44 ++++++++++++++++++++++++-----------------
 1 file changed, 26 insertions(+), 18 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 8d952160915..ecac6b6e5a8 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -70,7 +70,6 @@ struct ovl_priv_data {
 	bool shadow_extra_info_dirty;
 
 	bool enabled;
-	enum omap_channel channel;
 	u32 fifo_low, fifo_high;
 
 	/*
@@ -615,7 +614,6 @@ static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
 	 * disabled */
 
 	dispc_ovl_enable(ovl->id, op->enabled);
-	dispc_ovl_set_channel_out(ovl->id, op->channel);
 	dispc_ovl_set_fifo_threshold(ovl->id, op->fifo_low, op->fifo_high);
 
 	mp = get_mgr_priv(ovl->manager);
@@ -1276,39 +1274,34 @@ int dss_ovl_set_manager(struct omap_overlay *ovl,
 		goto err;
 	}
 
+	r = dispc_runtime_get();
+	if (r)
+		goto err;
+
 	spin_lock_irqsave(&data_lock, flags);
 
 	if (op->enabled) {
 		spin_unlock_irqrestore(&data_lock, flags);
 		DSSERR("overlay has to be disabled to change the manager\n");
 		r = -EINVAL;
-		goto err;
+		goto err1;
 	}
 
-	op->channel = mgr->id;
-	op->extra_info_dirty = true;
+	dispc_ovl_set_channel_out(ovl->id, mgr->id);
 
 	ovl->manager = mgr;
 	list_add_tail(&ovl->list, &mgr->overlays);
 
 	spin_unlock_irqrestore(&data_lock, flags);
 
-	/* XXX: When there is an overlay on a DSI manual update display, and
-	 * the overlay is first disabled, then moved to tv, and enabled, we
-	 * seem to get SYNC_LOST_DIGIT error.
-	 *
-	 * Waiting doesn't seem to help, but updating the manual update display
-	 * after disabling the overlay seems to fix this. This hints that the
-	 * overlay is perhaps somehow tied to the LCD output until the output
-	 * is updated.
-	 *
-	 * Userspace workaround for this is to update the LCD after disabling
-	 * the overlay, but before moving the overlay to TV.
-	 */
+	dispc_runtime_put();
 
 	mutex_unlock(&apply_lock);
 
 	return 0;
+
+err1:
+	dispc_runtime_put();
 err:
 	mutex_unlock(&apply_lock);
 	return r;
@@ -1342,9 +1335,24 @@ int dss_ovl_unset_manager(struct omap_overlay *ovl)
 	/* wait for pending extra_info updates to ensure the ovl is disabled */
 	wait_pending_extra_info_updates();
 
+	/*
+	 * For a manual update display, there is no guarantee that the overlay
+	 * is really disabled in HW, we may need an extra update from this
+	 * manager before the configurations can go in. Return an error if the
+	 * overlay needed an update from the manager.
+	 *
+	 * TODO: Instead of returning an error, try to do a dummy manager update
+	 * here to disable the overlay in hardware. Use the *GATED fields in
+	 * the DISPC_CONFIG registers to do a dummy update.
+	 */
 	spin_lock_irqsave(&data_lock, flags);
 
-	op->channel = -1;
+	if (ovl_manual_update(ovl) && op->extra_info_dirty) {
+		spin_unlock_irqrestore(&data_lock, flags);
+		DSSERR("need an update to change the manager\n");
+		r = -EINVAL;
+		goto err;
+	}
 
 	ovl->manager = NULL;
 	list_del(&ovl->list);
-- 
cgit v1.2.3


From ca8d4e8bb201db9bc5619561f3c13f6beb58329c Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 7 Nov 2012 14:47:23 +0530
Subject: OMAPDSS: APPLY: Remove unnecessary variable in dss_apply_irq_handler

The bool was_updating is never really used for anything. It is set to the
current value of mp->updating, but not used anywhere. Remove this variable.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index ecac6b6e5a8..55fb5d778ae 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -827,7 +827,6 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	for (i = 0; i < num_mgrs; i++) {
 		struct omap_overlay_manager *mgr;
 		struct mgr_priv_data *mp;
-		bool was_updating;
 
 		mgr = omap_dss_get_overlay_manager(i);
 		mp = get_mgr_priv(mgr);
@@ -835,7 +834,6 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 		if (!mp->enabled)
 			continue;
 
-		was_updating = mp->updating;
 		mp->updating = dispc_mgr_is_enabled(i);
 
 		if (!mgr_manual_update(mgr)) {
-- 
cgit v1.2.3


From c90929020986d12577570139ed6b787367823ade Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 7 Nov 2012 14:47:24 +0530
Subject: OMAPDSS: APPLY: Remove unnecessary call to mg_clear_shadow_dirty

When doing a manual update in dss_mgr_start_update, we clear the shadow dirty
flags. Although there isn't any harm in clearing them. The need to clear them
out here should never arrive.

When applying configurations for a manual update manager, we never do any
register writes, i.e, calls to dss_mgr_write_regs and dss_mgr_write_regs_extra
never happen while applying. We do all these writes only when we call
dss_mgr_start_update. Hence, there is never a time when the shadow registers
are dirty.

Remove the call to mg_clear_shadow_dirty.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 55fb5d778ae..4a5cc5c64d4 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -770,8 +770,6 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 
 	dispc_mgr_enable_sync(mgr->id);
 
-	mgr_clear_shadow_dirty(mgr);
-
 	spin_unlock_irqrestore(&data_lock, flags);
 }
 
-- 
cgit v1.2.3


From 3f5ba55e8f3698432c65b0ef77e83d22d5f64a79 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 9 Nov 2012 15:41:21 +0200
Subject: OMAP: FB: use DMA_BIT_MASK() for fb's coherent_dma_mask

Use DMA_BIT_MASK() for fb's coherent_dma_mask for clarity.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/fb.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c
index bcbb9d5dc29..218963bd4bb 100644
--- a/arch/arm/plat-omap/fb.c
+++ b/arch/arm/plat-omap/fb.c
@@ -29,6 +29,7 @@
 #include <linux/memblock.h>
 #include <linux/io.h>
 #include <linux/omapfb.h>
+#include <linux/dma-mapping.h>
 
 #include <mach/hardware.h>
 #include <asm/mach/map.h>
@@ -45,7 +46,7 @@ static struct platform_device omap_fb_device = {
 	.id		= -1,
 	.dev = {
 		.dma_mask		= &omap_fb_dma_mask,
-		.coherent_dma_mask	= ~(u32)0,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &omapfb_config,
 	},
 	.num_resources = 0,
@@ -81,7 +82,7 @@ static struct platform_device omap_fb_device = {
 	.id		= -1,
 	.dev = {
 		.dma_mask		= &omap_fb_dma_mask,
-		.coherent_dma_mask	= ~(u32)0,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &omapfb_config,
 	},
 	.num_resources = 0,
-- 
cgit v1.2.3


From 0049fb2603b7afb1080776ee691dfa5a3d282357 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 9 Nov 2012 15:52:20 +0200
Subject: OMAPFB: use dma_alloc_attrs to allocate memory

Use dma_alloc_attrs to allocate memory instead of omap specific vram
allocator. After this we can remove the omap vram allocator.

There are some downsides to this change:

1) dma_alloc_attrs doesn't let us allocate at certain physical address.
However, this should not be a problem as this feature of vram allocator
is only used when reserving the framebuffer that was initialized by the
bootloader, and we don't currently support "passing" a framebuffer from
the bootloader to the kernel anyway.

2) dma_alloc_attrs, as of now, always ioremaps the allocated area, and
we don't need the ioremap when using VRFB. This patch uses
DMA_ATTR_NO_KERNEL_MAPPING for the allocation, but the flag is currently
not operational.

3) OMAPFB_GET_VRAM_INFO ioctl cannot return real values anymore. I
changed the ioctl to return 64M for all the values, which, I hope, the
applications will interpret as "there's enough vram".

4) "vram" kernel parameter to define how much ram to reserve for video
use no longer works. The user needs to enable CMA and use "cma"
parameter.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 Documentation/arm/OMAP/DSS                | 10 ++---
 drivers/video/omap2/omapfb/Kconfig        |  1 -
 drivers/video/omap2/omapfb/omapfb-ioctl.c | 14 +++----
 drivers/video/omap2/omapfb/omapfb-main.c  | 69 ++++++++++++++++---------------
 drivers/video/omap2/omapfb/omapfb.h       |  5 +++
 5 files changed, 52 insertions(+), 47 deletions(-)

diff --git a/Documentation/arm/OMAP/DSS b/Documentation/arm/OMAP/DSS
index a564ceea9e9..4484e021290 100644
--- a/Documentation/arm/OMAP/DSS
+++ b/Documentation/arm/OMAP/DSS
@@ -285,7 +285,10 @@ FB0 +-- GFX  ---- LCD ---- LCD
 Misc notes
 ----------
 
-OMAP FB allocates the framebuffer memory using the OMAP VRAM allocator.
+OMAP FB allocates the framebuffer memory using the standard dma allocator. You
+can enable Contiguous Memory Allocator (CONFIG_CMA) to improve the dma
+allocator, and if CMA is enabled, you use "cma=" kernel parameter to increase
+the global memory area for CMA.
 
 Using DSI DPLL to generate pixel clock it is possible produce the pixel clock
 of 86.5MHz (max possible), and with that you get 1280x1024@57 output from DVI.
@@ -301,11 +304,6 @@ framebuffer parameters.
 Kernel boot arguments
 ---------------------
 
-vram=<size>[,<physaddr>]
-	- Amount of total VRAM to preallocate and optionally a physical start
-	  memory address. For example, "10M". omapfb allocates memory for
-	  framebuffers from VRAM.
-
 omapfb.mode=<display>:<mode>[,...]
 	- Default video mode for specified displays. For example,
 	  "dvi:800x400MR-24@60".  See drivers/video/modedb.c.
diff --git a/drivers/video/omap2/omapfb/Kconfig b/drivers/video/omap2/omapfb/Kconfig
index 4ea17dc3258..4cb12ce6885 100644
--- a/drivers/video/omap2/omapfb/Kconfig
+++ b/drivers/video/omap2/omapfb/Kconfig
@@ -2,7 +2,6 @@ menuconfig FB_OMAP2
         tristate "OMAP2+ frame buffer support"
         depends on FB && OMAP2_DSS && !DRM_OMAP
 
-	select OMAP2_VRAM
 	select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3
         select FB_CFB_FILLRECT
         select FB_CFB_COPYAREA
diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 606b89f1235..574c1708f74 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -31,7 +31,6 @@
 
 #include <video/omapdss.h>
 #include <plat/vrfb.h>
-#include <plat/vram.h>
 
 #include "omapfb.h"
 
@@ -853,14 +852,15 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 		break;
 
 	case OMAPFB_GET_VRAM_INFO: {
-		unsigned long vram, free, largest;
-
 		DBG("ioctl GET_VRAM_INFO\n");
 
-		omap_vram_get_info(&vram, &free, &largest);
-		p.vram_info.total = vram;
-		p.vram_info.free = free;
-		p.vram_info.largest_free_block = largest;
+		/*
+		 * We don't have the ability to get this vram info anymore.
+		 * Fill in something that should keep the applications working.
+		 */
+		p.vram_info.total = SZ_1M * 64;
+		p.vram_info.free = SZ_1M * 64;
+		p.vram_info.largest_free_block = SZ_1M * 64;
 
 		if (copy_to_user((void __user *)arg, &p.vram_info,
 					sizeof(p.vram_info)))
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 16db1589bd9..84c10121de4 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -32,7 +32,6 @@
 
 #include <video/omapdss.h>
 #include <plat/cpu.h>
-#include <plat/vram.h>
 #include <plat/vrfb.h>
 
 #include "omapfb.h"
@@ -1336,24 +1335,25 @@ static void omapfb_free_fbmem(struct fb_info *fbi)
 
 	rg = ofbi->region;
 
-	WARN_ON(atomic_read(&rg->map_count));
-
-	if (rg->paddr)
-		if (omap_vram_free(rg->paddr, rg->size))
-			dev_err(fbdev->dev, "VRAM FREE failed\n");
+	if (rg->token == NULL)
+		return;
 
-	if (rg->vaddr)
-		iounmap(rg->vaddr);
+	WARN_ON(atomic_read(&rg->map_count));
 
 	if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
 		/* unmap the 0 angle rotation */
 		if (rg->vrfb.vaddr[0]) {
 			iounmap(rg->vrfb.vaddr[0]);
-			omap_vrfb_release_ctx(&rg->vrfb);
 			rg->vrfb.vaddr[0] = NULL;
 		}
+
+		omap_vrfb_release_ctx(&rg->vrfb);
 	}
 
+	dma_free_attrs(fbdev->dev, rg->size, rg->token, rg->dma_handle,
+			&rg->attrs);
+
+	rg->token = NULL;
 	rg->vaddr = NULL;
 	rg->paddr = 0;
 	rg->alloc = 0;
@@ -1388,7 +1388,9 @@ static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
 	struct omapfb_info *ofbi = FB2OFB(fbi);
 	struct omapfb2_device *fbdev = ofbi->fbdev;
 	struct omapfb2_mem_region *rg;
-	void __iomem *vaddr;
+	void *token;
+	DEFINE_DMA_ATTRS(attrs);
+	dma_addr_t dma_handle;
 	int r;
 
 	rg = ofbi->region;
@@ -1403,42 +1405,43 @@ static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
 
 	size = PAGE_ALIGN(size);
 
-	if (!paddr) {
-		DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
-		r = omap_vram_alloc(size, &paddr);
-	} else {
-		DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr,
-				ofbi->id);
-		r = omap_vram_reserve(paddr, size);
-	}
+	WARN_ONCE(paddr,
+		"reserving memory at predefined address not supported\n");
 
-	if (r) {
+	dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
+
+	if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
+		dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &attrs);
+
+	DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
+
+	token = dma_alloc_attrs(fbdev->dev, size, &dma_handle,
+			GFP_KERNEL, &attrs);
+
+	if (token == NULL) {
 		dev_err(fbdev->dev, "failed to allocate framebuffer\n");
 		return -ENOMEM;
 	}
 
-	if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) {
-		vaddr = ioremap_wc(paddr, size);
-
-		if (!vaddr) {
-			dev_err(fbdev->dev, "failed to ioremap framebuffer\n");
-			omap_vram_free(paddr, size);
-			return -ENOMEM;
-		}
+	DBG("allocated VRAM paddr %lx, vaddr %p\n",
+			(unsigned long)dma_handle, token);
 
-		DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr);
-	} else {
+	if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
 		r = omap_vrfb_request_ctx(&rg->vrfb);
 		if (r) {
+			dma_free_attrs(fbdev->dev, size, token, dma_handle,
+					&attrs);
 			dev_err(fbdev->dev, "vrfb create ctx failed\n");
 			return r;
 		}
-
-		vaddr = NULL;
 	}
 
-	rg->paddr = paddr;
-	rg->vaddr = vaddr;
+	rg->attrs = attrs;
+	rg->token = token;
+	rg->dma_handle = dma_handle;
+
+	rg->paddr = (unsigned long)dma_handle;
+	rg->vaddr = (void __iomem *)token;
 	rg->size = size;
 	rg->alloc = 1;
 
diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h
index 5ced9b334d3..5f72bf9017f 100644
--- a/drivers/video/omap2/omapfb/omapfb.h
+++ b/drivers/video/omap2/omapfb/omapfb.h
@@ -28,6 +28,8 @@
 #endif
 
 #include <linux/rwsem.h>
+#include <linux/dma-attrs.h>
+#include <linux/dma-mapping.h>
 
 #include <video/omapdss.h>
 
@@ -49,6 +51,9 @@ extern bool omapfb_debug;
 
 struct omapfb2_mem_region {
 	int             id;
+	struct dma_attrs attrs;
+	void		*token;
+	dma_addr_t	dma_handle;
 	u32		paddr;
 	void __iomem	*vaddr;
 	struct vrfb	vrfb;
-- 
cgit v1.2.3


From e8ead7b50d1608710604b953e908dc02e949b723 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 9 Nov 2012 15:15:50 +0200
Subject: OMAP: RX51: remove use of vram

As omapfb no longer uses omap specific vram allocator we can remove the
vram pre-allocation from rx51 board file.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-rx51-video.c | 14 --------------
 arch/arm/mach-omap2/board-rx51.c       |  3 ---
 2 files changed, 17 deletions(-)

diff --git a/arch/arm/mach-omap2/board-rx51-video.c b/arch/arm/mach-omap2/board-rx51-video.c
index c22e111bcd0..46f4fc98276 100644
--- a/arch/arm/mach-omap2/board-rx51-video.c
+++ b/arch/arm/mach-omap2/board-rx51-video.c
@@ -16,7 +16,6 @@
 #include <linux/mm.h>
 #include <asm/mach-types.h>
 #include <video/omapdss.h>
-#include <plat/vram.h>
 #include <linux/platform_data/spi-omap2-mcspi.h>
 
 #include "board-rx51.h"
@@ -87,17 +86,4 @@ static int __init rx51_video_init(void)
 }
 
 subsys_initcall(rx51_video_init);
-
-void __init rx51_video_mem_init(void)
-{
-	/*
-	 * GFX 864x480x32bpp
-	 * VID1/2 1280x720x32bpp double buffered
-	 */
-	omap_vram_set_sdram_vram(PAGE_ALIGN(864 * 480 * 4) +
-			2 * PAGE_ALIGN(1280 * 720 * 4 * 2), 0);
-}
-
-#else
-void __init rx51_video_mem_init(void) { }
 #endif /* defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) */
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index 7bbb05d9689..6e0de6f8327 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -34,8 +34,6 @@
 
 #define RX51_GPIO_SLEEP_IND 162
 
-extern void rx51_video_mem_init(void);
-
 static struct gpio_led gpio_leds[] = {
 	{
 		.name	= "sleep_ind",
@@ -112,7 +110,6 @@ static void __init rx51_init(void)
 
 static void __init rx51_reserve(void)
 {
-	rx51_video_mem_init();
 	omap_reserve();
 }
 
-- 
cgit v1.2.3


From b022e17b1c7ec43f435fb568d38e888c65d6d77e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 9 Nov 2012 15:16:21 +0200
Subject: OMAP: common.c: remove init call to vram

OMAP specific vram allocator is no longer used, and we can remove init
call to the vram allocator.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/common.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index 111315a6935..d21ed18355a 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -17,7 +17,6 @@
 #include <linux/dma-mapping.h>
 
 #include <plat/common.h>
-#include <plat/vram.h>
 #include <linux/platform_data/dsp-omap.h>
 #include <plat/dma.h>
 
@@ -25,7 +24,6 @@
 
 void __init omap_reserve(void)
 {
-	omap_vram_reserve_sdram_memblock();
 	omap_dsp_reserve_sdram_memblock();
 	omap_secure_ram_reserve_memblock();
 	omap_barrier_reserve_memblock();
-- 
cgit v1.2.3


From 966458f89d84ef5792893a01e2b7a5218c7b311d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 9 Nov 2012 15:18:52 +0200
Subject: OMAP: remove vram allocator

OMAP specific vram allocator is no longer in use, and we can remove all
the vram code.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/plat-omap/include/plat/vram.h |  43 ---
 drivers/video/omap2/Kconfig            |   3 -
 drivers/video/omap2/Makefile           |   1 -
 drivers/video/omap2/dss/Kconfig        |  12 -
 drivers/video/omap2/vram.c             | 514 ---------------------------------
 5 files changed, 573 deletions(-)
 delete mode 100644 arch/arm/plat-omap/include/plat/vram.h
 delete mode 100644 drivers/video/omap2/vram.c

diff --git a/arch/arm/plat-omap/include/plat/vram.h b/arch/arm/plat-omap/include/plat/vram.h
deleted file mode 100644
index 4d65b7d06e6..00000000000
--- a/arch/arm/plat-omap/include/plat/vram.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * VRAM manager for OMAP
- *
- * Copyright (C) 2009 Nokia Corporation
- * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- */
-
-#ifndef __OMAP_VRAM_H__
-#define __OMAP_VRAM_H__
-
-#include <linux/types.h>
-
-extern int omap_vram_add_region(unsigned long paddr, size_t size);
-extern int omap_vram_free(unsigned long paddr, size_t size);
-extern int omap_vram_alloc(size_t size, unsigned long *paddr);
-extern int omap_vram_reserve(unsigned long paddr, size_t size);
-extern void omap_vram_get_info(unsigned long *vram, unsigned long *free_vram,
-		unsigned long *largest_free_block);
-
-#ifdef CONFIG_OMAP2_VRAM
-extern void omap_vram_set_sdram_vram(u32 size, u32 start);
-
-extern void omap_vram_reserve_sdram_memblock(void);
-#else
-static inline void omap_vram_set_sdram_vram(u32 size, u32 start) { }
-
-static inline void omap_vram_reserve_sdram_memblock(void) { }
-#endif
-
-#endif
diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig
index d877c361abd..346d67d6cf4 100644
--- a/drivers/video/omap2/Kconfig
+++ b/drivers/video/omap2/Kconfig
@@ -1,6 +1,3 @@
-config OMAP2_VRAM
-	bool
-
 config OMAP2_VRFB
 	bool
 
diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile
index 5ddef129f79..5ea7cb9aed1 100644
--- a/drivers/video/omap2/Makefile
+++ b/drivers/video/omap2/Makefile
@@ -1,4 +1,3 @@
-obj-$(CONFIG_OMAP2_VRAM) += vram.o
 obj-$(CONFIG_OMAP2_VRFB) += vrfb.o
 
 obj-$(CONFIG_OMAP2_DSS) += dss/
diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig
index 80f5390aa13..058a669cb51 100644
--- a/drivers/video/omap2/dss/Kconfig
+++ b/drivers/video/omap2/dss/Kconfig
@@ -6,18 +6,6 @@ menuconfig OMAP2_DSS
 
 if OMAP2_DSS
 
-config OMAP2_VRAM_SIZE
-	int "VRAM size (MB)"
-	range 0 32
-	default 0
-	help
-	  The amount of SDRAM to reserve at boot time for video RAM use.
-	  This VRAM will be used by omapfb and other drivers that need
-	  large continuous RAM area for video use.
-
-	  You can also set this with "vram=<bytes>" kernel argument, or
-	  in the board file.
-
 config OMAP2_DSS_DEBUG_SUPPORT
         bool "Debug support"
 	default y
diff --git a/drivers/video/omap2/vram.c b/drivers/video/omap2/vram.c
deleted file mode 100644
index f2b15c4a75b..00000000000
--- a/drivers/video/omap2/vram.c
+++ /dev/null
@@ -1,514 +0,0 @@
-/*
- * VRAM manager for OMAP
- *
- * Copyright (C) 2009 Nokia Corporation
- * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- */
-
-/*#define DEBUG*/
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <linux/seq_file.h>
-#include <linux/memblock.h>
-#include <linux/completion.h>
-#include <linux/debugfs.h>
-#include <linux/jiffies.h>
-#include <linux/module.h>
-
-#include <asm/setup.h>
-
-#include <plat/vram.h>
-
-#ifdef DEBUG
-#define DBG(format, ...) pr_debug("VRAM: " format, ## __VA_ARGS__)
-#else
-#define DBG(format, ...)
-#endif
-
-/* postponed regions are used to temporarily store region information at boot
- * time when we cannot yet allocate the region list */
-#define MAX_POSTPONED_REGIONS 10
-
-static bool vram_initialized;
-static int postponed_cnt;
-static struct {
-	unsigned long paddr;
-	size_t size;
-} postponed_regions[MAX_POSTPONED_REGIONS];
-
-struct vram_alloc {
-	struct list_head list;
-	unsigned long paddr;
-	unsigned pages;
-};
-
-struct vram_region {
-	struct list_head list;
-	struct list_head alloc_list;
-	unsigned long paddr;
-	unsigned pages;
-};
-
-static DEFINE_MUTEX(region_mutex);
-static LIST_HEAD(region_list);
-
-static struct vram_region *omap_vram_create_region(unsigned long paddr,
-		unsigned pages)
-{
-	struct vram_region *rm;
-
-	rm = kzalloc(sizeof(*rm), GFP_KERNEL);
-
-	if (rm) {
-		INIT_LIST_HEAD(&rm->alloc_list);
-		rm->paddr = paddr;
-		rm->pages = pages;
-	}
-
-	return rm;
-}
-
-#if 0
-static void omap_vram_free_region(struct vram_region *vr)
-{
-	list_del(&vr->list);
-	kfree(vr);
-}
-#endif
-
-static struct vram_alloc *omap_vram_create_allocation(struct vram_region *vr,
-		unsigned long paddr, unsigned pages)
-{
-	struct vram_alloc *va;
-	struct vram_alloc *new;
-
-	new = kzalloc(sizeof(*va), GFP_KERNEL);
-
-	if (!new)
-		return NULL;
-
-	new->paddr = paddr;
-	new->pages = pages;
-
-	list_for_each_entry(va, &vr->alloc_list, list) {
-		if (va->paddr > new->paddr)
-			break;
-	}
-
-	list_add_tail(&new->list, &va->list);
-
-	return new;
-}
-
-static void omap_vram_free_allocation(struct vram_alloc *va)
-{
-	list_del(&va->list);
-	kfree(va);
-}
-
-int omap_vram_add_region(unsigned long paddr, size_t size)
-{
-	struct vram_region *rm;
-	unsigned pages;
-
-	if (vram_initialized) {
-		DBG("adding region paddr %08lx size %d\n",
-				paddr, size);
-
-		size &= PAGE_MASK;
-		pages = size >> PAGE_SHIFT;
-
-		rm = omap_vram_create_region(paddr, pages);
-		if (rm == NULL)
-			return -ENOMEM;
-
-		list_add(&rm->list, &region_list);
-	} else {
-		if (postponed_cnt == MAX_POSTPONED_REGIONS)
-			return -ENOMEM;
-
-		postponed_regions[postponed_cnt].paddr = paddr;
-		postponed_regions[postponed_cnt].size = size;
-
-		++postponed_cnt;
-	}
-	return 0;
-}
-
-int omap_vram_free(unsigned long paddr, size_t size)
-{
-	struct vram_region *rm;
-	struct vram_alloc *alloc;
-	unsigned start, end;
-
-	DBG("free mem paddr %08lx size %d\n", paddr, size);
-
-	size = PAGE_ALIGN(size);
-
-	mutex_lock(&region_mutex);
-
-	list_for_each_entry(rm, &region_list, list) {
-		list_for_each_entry(alloc, &rm->alloc_list, list) {
-			start = alloc->paddr;
-			end = alloc->paddr + (alloc->pages >> PAGE_SHIFT);
-
-			if (start >= paddr && end < paddr + size)
-				goto found;
-		}
-	}
-
-	mutex_unlock(&region_mutex);
-	return -EINVAL;
-
-found:
-	omap_vram_free_allocation(alloc);
-
-	mutex_unlock(&region_mutex);
-	return 0;
-}
-EXPORT_SYMBOL(omap_vram_free);
-
-static int _omap_vram_reserve(unsigned long paddr, unsigned pages)
-{
-	struct vram_region *rm;
-	struct vram_alloc *alloc;
-	size_t size;
-
-	size = pages << PAGE_SHIFT;
-
-	list_for_each_entry(rm, &region_list, list) {
-		unsigned long start, end;
-
-		DBG("checking region %lx %d\n", rm->paddr, rm->pages);
-
-		start = rm->paddr;
-		end = start + (rm->pages << PAGE_SHIFT) - 1;
-		if (start > paddr || end < paddr + size - 1)
-			continue;
-
-		DBG("block ok, checking allocs\n");
-
-		list_for_each_entry(alloc, &rm->alloc_list, list) {
-			end = alloc->paddr - 1;
-
-			if (start <= paddr && end >= paddr + size - 1)
-				goto found;
-
-			start = alloc->paddr + (alloc->pages << PAGE_SHIFT);
-		}
-
-		end = rm->paddr + (rm->pages << PAGE_SHIFT) - 1;
-
-		if (!(start <= paddr && end >= paddr + size - 1))
-			continue;
-found:
-		DBG("found area start %lx, end %lx\n", start, end);
-
-		if (omap_vram_create_allocation(rm, paddr, pages) == NULL)
-			return -ENOMEM;
-
-		return 0;
-	}
-
-	return -ENOMEM;
-}
-
-int omap_vram_reserve(unsigned long paddr, size_t size)
-{
-	unsigned pages;
-	int r;
-
-	DBG("reserve mem paddr %08lx size %d\n", paddr, size);
-
-	size = PAGE_ALIGN(size);
-	pages = size >> PAGE_SHIFT;
-
-	mutex_lock(&region_mutex);
-
-	r = _omap_vram_reserve(paddr, pages);
-
-	mutex_unlock(&region_mutex);
-
-	return r;
-}
-EXPORT_SYMBOL(omap_vram_reserve);
-
-static int _omap_vram_alloc(unsigned pages, unsigned long *paddr)
-{
-	struct vram_region *rm;
-	struct vram_alloc *alloc;
-
-	list_for_each_entry(rm, &region_list, list) {
-		unsigned long start, end;
-
-		DBG("checking region %lx %d\n", rm->paddr, rm->pages);
-
-		start = rm->paddr;
-
-		list_for_each_entry(alloc, &rm->alloc_list, list) {
-			end = alloc->paddr;
-
-			if (end - start >= pages << PAGE_SHIFT)
-				goto found;
-
-			start = alloc->paddr + (alloc->pages << PAGE_SHIFT);
-		}
-
-		end = rm->paddr + (rm->pages << PAGE_SHIFT);
-found:
-		if (end - start < pages << PAGE_SHIFT)
-			continue;
-
-		DBG("found %lx, end %lx\n", start, end);
-
-		alloc = omap_vram_create_allocation(rm, start, pages);
-		if (alloc == NULL)
-			return -ENOMEM;
-
-		*paddr = start;
-
-		return 0;
-	}
-
-	return -ENOMEM;
-}
-
-int omap_vram_alloc(size_t size, unsigned long *paddr)
-{
-	unsigned pages;
-	int r;
-
-	BUG_ON(!size);
-
-	DBG("alloc mem size %d\n", size);
-
-	size = PAGE_ALIGN(size);
-	pages = size >> PAGE_SHIFT;
-
-	mutex_lock(&region_mutex);
-
-	r = _omap_vram_alloc(pages, paddr);
-
-	mutex_unlock(&region_mutex);
-
-	return r;
-}
-EXPORT_SYMBOL(omap_vram_alloc);
-
-void omap_vram_get_info(unsigned long *vram,
-		unsigned long *free_vram,
-		unsigned long *largest_free_block)
-{
-	struct vram_region *vr;
-	struct vram_alloc *va;
-
-	*vram = 0;
-	*free_vram = 0;
-	*largest_free_block = 0;
-
-	mutex_lock(&region_mutex);
-
-	list_for_each_entry(vr, &region_list, list) {
-		unsigned free;
-		unsigned long pa;
-
-		pa = vr->paddr;
-		*vram += vr->pages << PAGE_SHIFT;
-
-		list_for_each_entry(va, &vr->alloc_list, list) {
-			free = va->paddr - pa;
-			*free_vram += free;
-			if (free > *largest_free_block)
-				*largest_free_block = free;
-			pa = va->paddr + (va->pages << PAGE_SHIFT);
-		}
-
-		free = vr->paddr + (vr->pages << PAGE_SHIFT) - pa;
-		*free_vram += free;
-		if (free > *largest_free_block)
-			*largest_free_block = free;
-	}
-
-	mutex_unlock(&region_mutex);
-}
-EXPORT_SYMBOL(omap_vram_get_info);
-
-#if defined(CONFIG_DEBUG_FS)
-static int vram_debug_show(struct seq_file *s, void *unused)
-{
-	struct vram_region *vr;
-	struct vram_alloc *va;
-	unsigned size;
-
-	mutex_lock(&region_mutex);
-
-	list_for_each_entry(vr, &region_list, list) {
-		size = vr->pages << PAGE_SHIFT;
-		seq_printf(s, "%08lx-%08lx (%d bytes)\n",
-				vr->paddr, vr->paddr + size - 1,
-				size);
-
-		list_for_each_entry(va, &vr->alloc_list, list) {
-			size = va->pages << PAGE_SHIFT;
-			seq_printf(s, "    %08lx-%08lx (%d bytes)\n",
-					va->paddr, va->paddr + size - 1,
-					size);
-		}
-	}
-
-	mutex_unlock(&region_mutex);
-
-	return 0;
-}
-
-static int vram_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, vram_debug_show, inode->i_private);
-}
-
-static const struct file_operations vram_debug_fops = {
-	.open           = vram_debug_open,
-	.read           = seq_read,
-	.llseek         = seq_lseek,
-	.release        = single_release,
-};
-
-static int __init omap_vram_create_debugfs(void)
-{
-	struct dentry *d;
-
-	d = debugfs_create_file("vram", S_IRUGO, NULL,
-			NULL, &vram_debug_fops);
-	if (IS_ERR(d))
-		return PTR_ERR(d);
-
-	return 0;
-}
-#endif
-
-static __init int omap_vram_init(void)
-{
-	int i;
-
-	vram_initialized = 1;
-
-	for (i = 0; i < postponed_cnt; i++)
-		omap_vram_add_region(postponed_regions[i].paddr,
-				postponed_regions[i].size);
-
-#ifdef CONFIG_DEBUG_FS
-	if (omap_vram_create_debugfs())
-		pr_err("VRAM: Failed to create debugfs file\n");
-#endif
-
-	return 0;
-}
-
-arch_initcall(omap_vram_init);
-
-/* boottime vram alloc stuff */
-
-/* set from board file */
-static u32 omap_vram_sdram_start __initdata;
-static u32 omap_vram_sdram_size __initdata;
-
-/* set from kernel cmdline */
-static u32 omap_vram_def_sdram_size __initdata;
-static u32 omap_vram_def_sdram_start __initdata;
-
-static int __init omap_vram_early_vram(char *p)
-{
-	omap_vram_def_sdram_size = memparse(p, &p);
-	if (*p == ',')
-		omap_vram_def_sdram_start = simple_strtoul(p + 1, &p, 16);
-	return 0;
-}
-early_param("vram", omap_vram_early_vram);
-
-/*
- * Called from map_io. We need to call to this early enough so that we
- * can reserve the fixed SDRAM regions before VM could get hold of them.
- */
-void __init omap_vram_reserve_sdram_memblock(void)
-{
-	u32 paddr;
-	u32 size = 0;
-
-	/* cmdline arg overrides the board file definition */
-	if (omap_vram_def_sdram_size) {
-		size = omap_vram_def_sdram_size;
-		paddr = omap_vram_def_sdram_start;
-	}
-
-	if (!size) {
-		size = omap_vram_sdram_size;
-		paddr = omap_vram_sdram_start;
-	}
-
-#ifdef CONFIG_OMAP2_VRAM_SIZE
-	if (!size) {
-		size = CONFIG_OMAP2_VRAM_SIZE * 1024 * 1024;
-		paddr = 0;
-	}
-#endif
-
-	if (!size)
-		return;
-
-	size = ALIGN(size, SZ_2M);
-
-	if (paddr) {
-		if (paddr & ~PAGE_MASK) {
-			pr_err("VRAM start address 0x%08x not page aligned\n",
-					paddr);
-			return;
-		}
-
-		if (!memblock_is_region_memory(paddr, size)) {
-			pr_err("Illegal SDRAM region 0x%08x..0x%08x for VRAM\n",
-					paddr, paddr + size - 1);
-			return;
-		}
-
-		if (memblock_is_region_reserved(paddr, size)) {
-			pr_err("FB: failed to reserve VRAM - busy\n");
-			return;
-		}
-
-		if (memblock_reserve(paddr, size) < 0) {
-			pr_err("FB: failed to reserve VRAM - no memory\n");
-			return;
-		}
-	} else {
-		paddr = memblock_alloc(size, SZ_2M);
-	}
-
-	memblock_free(paddr, size);
-	memblock_remove(paddr, size);
-
-	omap_vram_add_region(paddr, size);
-
-	pr_info("Reserving %u bytes SDRAM for VRAM\n", size);
-}
-
-void __init omap_vram_set_sdram_vram(u32 size, u32 start)
-{
-	omap_vram_sdram_start = start;
-	omap_vram_sdram_size = size;
-}
-- 
cgit v1.2.3


From a915d4ca24b814daee9cddbc42cd41f59fe4fa8f Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 16 Nov 2012 09:32:26 +0200
Subject: Revert "OMAPDSS: HDMI: Create platform device for audio support"

This reverts commit 14840b9a83c6a56629db2ba0ec247503e975f143.

The commit breaks audio, and a new version will be applied later.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 62 ------------------------------------------
 1 file changed, 62 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 49f104e7d1d..24a2eefb7e8 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -60,9 +60,6 @@
 static struct {
 	struct mutex lock;
 	struct platform_device *pdev;
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-	struct platform_device *audio_pdev;
-#endif
 
 	struct hdmi_ip_data ip_data;
 
@@ -825,54 +822,6 @@ static void hdmi_put_clocks(void)
 }
 
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-static int hdmi_probe_audio(struct platform_device *pdev)
-{
-	struct resource *res;
-	struct platform_device *aud_pdev;
-	u32 port_offset, port_size;
-	struct resource aud_res[2] = {
-		DEFINE_RES_MEM(-1, -1),
-		DEFINE_RES_DMA(-1),
-	};
-
-	res = platform_get_resource(hdmi.pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		DSSERR("can't get IORESOURCE_MEM HDMI\n");
-		return -EINVAL;
-	}
-
-	/*
-	 * Pass DMA audio port to audio drivers.
-	 * Audio drivers should not ioremap it.
-	 */
-	hdmi.ip_data.ops->audio_get_dma_port(&port_offset, &port_size);
-
-	aud_res[0].start = res->start + port_offset;
-	aud_res[0].end = aud_res[0].start + port_size - 1;
-
-	res = platform_get_resource(hdmi.pdev, IORESOURCE_DMA, 0);
-	if (!res) {
-		DSSERR("can't get IORESOURCE_DMA HDMI\n");
-		return -EINVAL;
-	}
-
-	/* Pass the audio DMA request resource to audio drivers. */
-	aud_res[1].start = res->start;
-
-	/* create platform device for HDMI audio driver */
-	aud_pdev = platform_device_register_simple("omap_hdmi_audio",
-						   pdev->id, aud_res,
-						   ARRAY_SIZE(aud_res));
-	if (IS_ERR(aud_pdev)) {
-		DSSERR("Can't instantiate hdmi-audio\n");
-		return -ENODEV;
-	}
-
-	hdmi.audio_pdev = aud_pdev;
-
-	return 0;
-}
-
 int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts)
 {
 	u32 deep_color;
@@ -1153,12 +1102,6 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 
 	hdmi_probe_pdata(pdev);
 
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-	r = hdmi_probe_audio(pdev);
-	if (r)
-		DSSWARN("could not create platform device for audio");
-#endif
-
 	return 0;
 
 err_panel_init:
@@ -1175,11 +1118,6 @@ static int __exit hdmi_remove_child(struct device *dev, void *data)
 
 static int __exit omapdss_hdmihw_remove(struct platform_device *pdev)
 {
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-	if (hdmi.audio_pdev != NULL)
-		platform_device_unregister(hdmi.audio_pdev);
-#endif
-
 	device_for_each_child(&pdev->dev, NULL, hdmi_remove_child);
 
 	dss_unregister_child_devices(&pdev->dev);
-- 
cgit v1.2.3


From 4ee9a5377b7888fae8aa6064e4cc8d0fd32871a2 Mon Sep 17 00:00:00 2001
From: Matthias Brugger <matthias.bgg@googlemail.com>
Date: Fri, 16 Nov 2012 18:51:01 +0100
Subject: OMAPFB: Delete if statement evaluating a constant.

Variable r is never set to any value different to zero.
Delete the if statement as it will never executed.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-main.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 408a3cce47a..1a69d7ca92e 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2445,7 +2445,6 @@ static int __init omapfb_probe(struct platform_device *pdev)
 	fbdev->dev = &pdev->dev;
 	platform_set_drvdata(pdev, fbdev);
 
-	r = 0;
 	fbdev->num_displays = 0;
 	dssdev = NULL;
 	for_each_dss_dev(dssdev) {
@@ -2468,9 +2467,6 @@ static int __init omapfb_probe(struct platform_device *pdev)
 			d->update_mode = OMAPFB_AUTO_UPDATE;
 	}
 
-	if (r)
-		goto cleanup;
-
 	if (fbdev->num_displays == 0) {
 		dev_err(&pdev->dev, "no displays\n");
 		r = -EINVAL;
-- 
cgit v1.2.3


From 33b89928f5a70eb8c97027765167a7cfcf405d0a Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 14 Nov 2012 13:50:15 +0530
Subject: OMAPDSS: Add overlay manager width and height limits as a dispc
 feature

The overlay manager width and height vary in OMAP5 from previous OMAPs
in terms of maximum limit and register field positions. Add parameters
in dispc_features for these. Also remove params related to manager width
and height from dss_features, as we want to maintain a feature list for
individual IPs.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c        | 28 +++++++++++++++++++++++++---
 drivers/video/omap2/dss/dss_features.c |  8 --------
 drivers/video/omap2/dss/dss_features.h |  2 --
 3 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 170c98c17a8..98e754b4a4d 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -87,6 +87,10 @@ struct dispc_features {
 	u16 sw_max;
 	u16 vp_max;
 	u16 hp_max;
+	u8 mgr_width_start;
+	u8 mgr_height_start;
+	u16 mgr_width_max;
+	u16 mgr_height_max;
 	int (*calc_scaling) (enum omap_plane plane,
 		const struct omap_video_timings *mgr_timings,
 		u16 width, u16 height, u16 out_width, u16 out_height,
@@ -1128,7 +1132,9 @@ static void dispc_mgr_set_size(enum omap_channel channel, u16 width,
 {
 	u32 val;
 
-	val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
+	val = FLD_VAL(height - 1, dispc.feat->mgr_height_start, 16) |
+		FLD_VAL(width - 1, dispc.feat->mgr_width_start, 0);
+
 	dispc_write_reg(DISPC_SIZE_MGR(channel), val);
 }
 
@@ -3000,8 +3006,8 @@ void dispc_mgr_set_lcd_config(enum omap_channel channel,
 
 static bool _dispc_mgr_size_ok(u16 width, u16 height)
 {
-	return width <= dss_feat_get_param_max(FEAT_PARAM_MGR_WIDTH) &&
-		height <= dss_feat_get_param_max(FEAT_PARAM_MGR_HEIGHT);
+	return width <= dispc.feat->mgr_width_max &&
+		height <= dispc.feat->mgr_height_max;
 }
 
 static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp,
@@ -4082,6 +4088,10 @@ static const struct dispc_features omap24xx_dispc_feats __initconst = {
 	.sw_max			=	64,
 	.vp_max			=	255,
 	.hp_max			=	256,
+	.mgr_width_start	=	10,
+	.mgr_height_start	=	26,
+	.mgr_width_max		=	2048,
+	.mgr_height_max		=	2048,
 	.calc_scaling		=	dispc_ovl_calc_scaling_24xx,
 	.calc_core_clk		=	calc_core_clk_24xx,
 	.num_fifos		=	3,
@@ -4094,6 +4104,10 @@ static const struct dispc_features omap34xx_rev1_0_dispc_feats __initconst = {
 	.sw_max			=	64,
 	.vp_max			=	255,
 	.hp_max			=	256,
+	.mgr_width_start	=	10,
+	.mgr_height_start	=	26,
+	.mgr_width_max		=	2048,
+	.mgr_height_max		=	2048,
 	.calc_scaling		=	dispc_ovl_calc_scaling_34xx,
 	.calc_core_clk		=	calc_core_clk_34xx,
 	.num_fifos		=	3,
@@ -4106,6 +4120,10 @@ static const struct dispc_features omap34xx_rev3_0_dispc_feats __initconst = {
 	.sw_max			=	256,
 	.vp_max			=	4095,
 	.hp_max			=	4096,
+	.mgr_width_start	=	10,
+	.mgr_height_start	=	26,
+	.mgr_width_max		=	2048,
+	.mgr_height_max		=	2048,
 	.calc_scaling		=	dispc_ovl_calc_scaling_34xx,
 	.calc_core_clk		=	calc_core_clk_34xx,
 	.num_fifos		=	3,
@@ -4118,6 +4136,10 @@ static const struct dispc_features omap44xx_dispc_feats __initconst = {
 	.sw_max			=	256,
 	.vp_max			=	4095,
 	.hp_max			=	4096,
+	.mgr_width_start	=	10,
+	.mgr_height_start	=	26,
+	.mgr_width_max		=	2048,
+	.mgr_height_max		=	2048,
 	.calc_scaling		=	dispc_ovl_calc_scaling_44xx,
 	.calc_core_clk		=	calc_core_clk_44xx,
 	.num_fifos		=	5,
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 8dcecbca46a..1d125c6bfd1 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -429,8 +429,6 @@ static const struct dss_param_range omap2_dss_param_range[] = {
 	 * scaler cannot scale a image with width more than 768.
 	 */
 	[FEAT_PARAM_LINEWIDTH]			= { 1, 768 },
-	[FEAT_PARAM_MGR_WIDTH]			= { 1, 2048 },
-	[FEAT_PARAM_MGR_HEIGHT]			= { 1, 2048 },
 };
 
 static const struct dss_param_range omap3_dss_param_range[] = {
@@ -445,8 +443,6 @@ static const struct dss_param_range omap3_dss_param_range[] = {
 	[FEAT_PARAM_DSI_FCK]			= { 0, 173000000 },
 	[FEAT_PARAM_DOWNSCALE]			= { 1, 4 },
 	[FEAT_PARAM_LINEWIDTH]			= { 1, 1024 },
-	[FEAT_PARAM_MGR_WIDTH]			= { 1, 2048 },
-	[FEAT_PARAM_MGR_HEIGHT]			= { 1, 2048 },
 };
 
 static const struct dss_param_range omap4_dss_param_range[] = {
@@ -461,8 +457,6 @@ static const struct dss_param_range omap4_dss_param_range[] = {
 	[FEAT_PARAM_DSI_FCK]			= { 0, 170000000 },
 	[FEAT_PARAM_DOWNSCALE]			= { 1, 4 },
 	[FEAT_PARAM_LINEWIDTH]			= { 1, 2048 },
-	[FEAT_PARAM_MGR_WIDTH]			= { 1, 2048 },
-	[FEAT_PARAM_MGR_HEIGHT]			= { 1, 2048 },
 };
 
 static const struct dss_param_range omap5_dss_param_range[] = {
@@ -477,8 +471,6 @@ static const struct dss_param_range omap5_dss_param_range[] = {
 	[FEAT_PARAM_DSI_FCK]			= { 0, 170000000 },
 	[FEAT_PARAM_DOWNSCALE]			= { 1, 4 },
 	[FEAT_PARAM_LINEWIDTH]			= { 1, 2048 },
-	[FEAT_PARAM_MGR_WIDTH]			= { 1, 2048 },
-	[FEAT_PARAM_MGR_HEIGHT]			= { 1, 2048 },
 };
 
 static const enum dss_feat_id omap2_dss_feat_list[] = {
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index fc492ef72a5..385b0afe63c 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -98,8 +98,6 @@ enum dss_range_param {
 	FEAT_PARAM_DSI_FCK,
 	FEAT_PARAM_DOWNSCALE,
 	FEAT_PARAM_LINEWIDTH,
-	FEAT_PARAM_MGR_WIDTH,
-	FEAT_PARAM_MGR_HEIGHT,
 };
 
 /* DSS Feature Functions */
-- 
cgit v1.2.3


From 264236f82ea4ee5ee418f3e57c33d9d3fc37008f Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 14 Nov 2012 13:50:16 +0530
Subject: OMAPDSS: Add a dispc_features struct for OMAP5

Add a dispc_features struct for OMAP5. Previously, OMAP5 used the same
struct as OMAP4. The new struct for OMAP5 contains the updated register
field offset and maximum limit for overlay manager width and height.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 98e754b4a4d..3d0ff5b0d0e 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -4146,6 +4146,23 @@ static const struct dispc_features omap44xx_dispc_feats __initconst = {
 	.gfx_fifo_workaround	=	true,
 };
 
+static const struct dispc_features omap54xx_dispc_feats __initconst = {
+	.sw_start		=	7,
+	.fp_start		=	19,
+	.bp_start		=	31,
+	.sw_max			=	256,
+	.vp_max			=	4095,
+	.hp_max			=	4096,
+	.mgr_width_start	=	11,
+	.mgr_height_start	=	27,
+	.mgr_width_max		=	4096,
+	.mgr_height_max		=	4096,
+	.calc_scaling		=	dispc_ovl_calc_scaling_44xx,
+	.calc_core_clk		=	calc_core_clk_44xx,
+	.num_fifos		=	5,
+	.gfx_fifo_workaround	=	true,
+};
+
 static int __init dispc_init_features(struct platform_device *pdev)
 {
 	const struct dispc_features *src;
@@ -4179,7 +4196,7 @@ static int __init dispc_init_features(struct platform_device *pdev)
 		break;
 
 	case OMAPDSS_VER_OMAP5:
-		src = &omap44xx_dispc_feats;
+		src = &omap54xx_dispc_feats;
 		break;
 
 	default:
-- 
cgit v1.2.3


From ee6352de51c0ee151f1825b5f06f2e6e8ef44594 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Wed, 21 Nov 2012 21:48:52 +0200
Subject: OMAPDSS: panel-n8x0: register the DSS driver after SPI probe

Register the DSS driver after SPI probe. This simplifies the
initialization. This is similar to what is being done e.g.
in panel-acx565akm.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/panel-n8x0.c | 39 +++++++------------------------
 1 file changed, 9 insertions(+), 30 deletions(-)

diff --git a/drivers/video/omap2/displays/panel-n8x0.c b/drivers/video/omap2/displays/panel-n8x0.c
index 26532695555..d1cb722fcdb 100644
--- a/drivers/video/omap2/displays/panel-n8x0.c
+++ b/drivers/video/omap2/displays/panel-n8x0.c
@@ -652,18 +652,25 @@ static struct omap_dss_driver n8x0_panel_driver = {
 
 static int mipid_spi_probe(struct spi_device *spi)
 {
+	int r;
+
 	dev_dbg(&spi->dev, "mipid_spi_probe\n");
 
 	spi->mode = SPI_MODE_0;
 
 	s_drv_data.spidev = spi;
 
-	return 0;
+	r = omap_dss_register_driver(&n8x0_panel_driver);
+	if (r)
+		pr_err("n8x0_panel: dss driver registration failed\n");
+
+	return r;
 }
 
 static int mipid_spi_remove(struct spi_device *spi)
 {
 	dev_dbg(&spi->dev, "mipid_spi_remove\n");
+	omap_dss_unregister_driver(&n8x0_panel_driver);
 	return 0;
 }
 
@@ -675,34 +682,6 @@ static struct spi_driver mipid_spi_driver = {
 	.probe	= mipid_spi_probe,
 	.remove	= __devexit_p(mipid_spi_remove),
 };
+module_spi_driver(mipid_spi_driver);
 
-static int __init n8x0_panel_drv_init(void)
-{
-	int r;
-
-	r = spi_register_driver(&mipid_spi_driver);
-	if (r) {
-		pr_err("n8x0_panel: spi driver registration failed\n");
-		return r;
-	}
-
-	r = omap_dss_register_driver(&n8x0_panel_driver);
-	if (r) {
-		pr_err("n8x0_panel: dss driver registration failed\n");
-		spi_unregister_driver(&mipid_spi_driver);
-		return r;
-	}
-
-	return 0;
-}
-
-static void __exit n8x0_panel_drv_exit(void)
-{
-	spi_unregister_driver(&mipid_spi_driver);
-
-	omap_dss_unregister_driver(&n8x0_panel_driver);
-}
-
-module_init(n8x0_panel_drv_init);
-module_exit(n8x0_panel_drv_exit);
 MODULE_LICENSE("GPL");
-- 
cgit v1.2.3


From 9b76c9cdece2b14a23bfddd765f6dac1dd4d0120 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 23 Nov 2012 10:50:32 +0200
Subject: OMAPFB: fix compilation error
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

omapfb compilation fails on x86 (but not on omap):

drivers/video/omap2/omapfb/omapfb-ioctl.c: In function ‘omapfb_ioctl’:
drivers/video/omap2/omapfb/omapfb-ioctl.c:861:23: error: ‘SZ_1M’ undeclared (first use in this function)
drivers/video/omap2/omapfb/omapfb-ioctl.c:861:23: note: each undeclared identifier is reported only once for each function it appears in

Fix this by including linux/sizes.h.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-ioctl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 3c73adbbf5f..442cff4dea7 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -28,6 +28,7 @@
 #include <linux/omapfb.h>
 #include <linux/vmalloc.h>
 #include <linux/export.h>
+#include <linux/sizes.h>
 
 #include <video/omapdss.h>
 #include <video/omapvrfb.h>
-- 
cgit v1.2.3


From 7e12be71fbad99efba4324843890d3b557dfc05c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 7 Nov 2012 16:33:09 +0200
Subject: OMAPDSS: remove declarations for non-existing functions

Remove dispc_mgr_is_channel_enabled() and dss_mgr_get_timings()
declarations, as the function doesn't exist.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 84a7f6a2bfc..8adf8be9323 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -197,7 +197,6 @@ void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
 		const struct omap_video_timings *timings);
 void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
 		const struct dss_lcd_mgr_config *config);
-const struct omap_video_timings *dss_mgr_get_timings(struct omap_overlay_manager *mgr);
 
 bool dss_ovl_is_enabled(struct omap_overlay *ovl);
 int dss_ovl_enable(struct omap_overlay *ovl);
@@ -444,7 +443,6 @@ void dispc_mgr_enable(enum omap_channel channel, bool enable);
 bool dispc_mgr_is_enabled(enum omap_channel channel);
 void dispc_mgr_enable_sync(enum omap_channel channel);
 void dispc_mgr_disable_sync(enum omap_channel channel);
-bool dispc_mgr_is_channel_enabled(enum omap_channel channel);
 void dispc_mgr_set_lcd_config(enum omap_channel channel,
 		const struct dss_lcd_mgr_config *config);
 void dispc_mgr_set_timings(enum omap_channel channel,
-- 
cgit v1.2.3


From 1de8e129f5e77e5eac6dc0a30df403404ddcd2b3 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 12 Nov 2012 16:52:11 +0200
Subject: OMAPDSS: DPI: fix crash with dpi_verify_dsi_pll()

If the DSI support has not been compiled in or the SoC doesn't have DSI
hardware, dpi_get_dsidev() returns NULL. This NULL is passed to
dpi_verify_dsi_pll() causing a crash. The bug was added with commit
0e8276ef75f5c7811b038d1d23b2b42c16efc5ac (OMAPDSS: DPI: always use DSI
PLL if available).

Fix this by checking if dsidev is NULL before calling
dpi_verify_dsi_pll().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 1e103b3135b..c109fa68c01 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -412,7 +412,7 @@ static int __init dpi_init_display(struct omap_dss_device *dssdev)
 	 */
 	dsidev = dpi_get_dsidev(dssdev->channel);
 
-	if (dpi_verify_dsi_pll(dsidev)) {
+	if (dsidev && dpi_verify_dsi_pll(dsidev)) {
 		dsidev = NULL;
 		DSSWARN("DSI PLL not operational\n");
 	}
-- 
cgit v1.2.3


From e870f212324b451ff17a1c78739d3ab54ea092cf Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 12 Nov 2012 16:55:28 +0200
Subject: OMAPDSS: don't WARN if there's no DSI device

dsi_get_dsidev_from_id() gives a WARN if DSI support is not compiled in.
This warning is not right, as it's valid to call
dsi_get_dsidev_from_id() to see if there is DSI support or not.

Remove the WARN().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 8adf8be9323..09d0651469a 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -382,8 +382,6 @@ static inline void dsi_wait_pll_hsdiv_dsi_active(struct platform_device *dsidev)
 }
 static inline struct platform_device *dsi_get_dsidev_from_id(int module)
 {
-	WARN("%s: DSI not compiled in, returning platform device as NULL\n",
-			__func__);
 	return NULL;
 }
 #endif
-- 
cgit v1.2.3


From cffa947d2769f3249beecb499b7d4083feeeb267 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 8 Nov 2012 10:01:33 +0200
Subject: OMAPDSS: DISPC: add no_framedone_tv feat

OMAP2/3 do not have FRAMEDONETV irq, but later omaps do. We currently
always return 0 from dispc_mgr_get_framedone_irq() for TV output to be
compatible with OMAP2/3.

This patch implements "no_framedone_tv" dispc-feature that is used in
dispc_mgr_get_framedone_irq to return either 0 for OMAP2/3, or the
correct IRQ number for FRAMEDONETV on OMAP4+.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 3d0ff5b0d0e..21fa587b121 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -104,6 +104,9 @@ struct dispc_features {
 
 	/* swap GFX & WB fifos */
 	bool gfx_fifo_workaround:1;
+
+	/* no DISPC_IRQ_FRAMEDONETV on this SoC */
+	bool no_framedone_tv:1;
 };
 
 #define DISPC_MAX_NR_FIFOS 5
@@ -191,7 +194,7 @@ static const struct {
 	[OMAP_DSS_CHANNEL_DIGIT] = {
 		.name		= "DIGIT",
 		.vsync_irq	= DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN,
-		.framedone_irq	= 0,
+		.framedone_irq	= DISPC_IRQ_FRAMEDONETV,
 		.sync_lost_irq	= DISPC_IRQ_SYNC_LOST_DIGIT,
 		.reg_desc	= {
 			[DISPC_MGR_FLD_ENABLE]		= { DISPC_CONTROL,  1,  1 },
@@ -543,6 +546,9 @@ u32 dispc_mgr_get_vsync_irq(enum omap_channel channel)
 
 u32 dispc_mgr_get_framedone_irq(enum omap_channel channel)
 {
+	if (channel == OMAP_DSS_CHANNEL_DIGIT && dispc.feat->no_framedone_tv)
+		return 0;
+
 	return mgr_desc[channel].framedone_irq;
 }
 
@@ -4095,6 +4101,7 @@ static const struct dispc_features omap24xx_dispc_feats __initconst = {
 	.calc_scaling		=	dispc_ovl_calc_scaling_24xx,
 	.calc_core_clk		=	calc_core_clk_24xx,
 	.num_fifos		=	3,
+	.no_framedone_tv	=	true,
 };
 
 static const struct dispc_features omap34xx_rev1_0_dispc_feats __initconst = {
@@ -4111,6 +4118,7 @@ static const struct dispc_features omap34xx_rev1_0_dispc_feats __initconst = {
 	.calc_scaling		=	dispc_ovl_calc_scaling_34xx,
 	.calc_core_clk		=	calc_core_clk_34xx,
 	.num_fifos		=	3,
+	.no_framedone_tv	=	true,
 };
 
 static const struct dispc_features omap34xx_rev3_0_dispc_feats __initconst = {
@@ -4127,6 +4135,7 @@ static const struct dispc_features omap34xx_rev3_0_dispc_feats __initconst = {
 	.calc_scaling		=	dispc_ovl_calc_scaling_34xx,
 	.calc_core_clk		=	calc_core_clk_34xx,
 	.num_fifos		=	3,
+	.no_framedone_tv	=	true,
 };
 
 static const struct dispc_features omap44xx_dispc_feats __initconst = {
-- 
cgit v1.2.3


From 15f5e7324a683ee1c2991a9953103dd9b3b6fa5e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 8 Nov 2012 10:05:31 +0200
Subject: OMAPDSS: DISPC: use get_framedone_irq in disable_digit_out

dispc_mgr_disable_digit_out() needs to wait until the DIGIT output is
turned off. This is done with either VSYNC irq on OMAP2/3 and
FRAMEDONETV on OMAP4+. It currently uses a rather hacky way to decide
what irq to use.

This patch changes dispc_mgr_disable_digit_out to use
dispc_mgr_get_framedone_irq to find out if there's framedone irq on this
SoC, and if not, uses VSYNC.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 21fa587b121..bc64d77a871 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2732,7 +2732,6 @@ static void dispc_mgr_enable_digit_out(void)
 static void dispc_mgr_disable_digit_out(void)
 {
 	DECLARE_COMPLETION_ONSTACK(framedone_compl);
-	enum dss_hdmi_venc_clk_source_select src;
 	int r, i;
 	u32 irq_mask;
 	int num_irqs;
@@ -2740,18 +2739,20 @@ static void dispc_mgr_disable_digit_out(void)
 	if (dispc_mgr_is_enabled(OMAP_DSS_CHANNEL_DIGIT) == false)
 		return;
 
-	src = dss_get_hdmi_venc_clk_source();
-
 	/*
 	 * When we disable the digit output, we need to wait for FRAMEDONE to
-	 * know that DISPC has finished with the output. For analog tv out we'll
-	 * use vsync, as omap2/3 don't have framedone for TV.
+	 * know that DISPC has finished with the output.
 	 */
 
-	if (src == DSS_HDMI_M_PCLK) {
-		irq_mask = DISPC_IRQ_FRAMEDONETV;
-		num_irqs = 1;
-	} else {
+	irq_mask = dispc_mgr_get_framedone_irq(OMAP_DSS_CHANNEL_DIGIT);
+	num_irqs = 1;
+
+	if (!irq_mask) {
+		/*
+		 * omap 2/3 don't have framedone irq for TV, so we need to use
+		 * vsyncs for this.
+		 */
+
 		irq_mask = dispc_mgr_get_vsync_irq(OMAP_DSS_CHANNEL_DIGIT);
 		/*
 		 * We need to wait for both even and odd vsyncs. Note that this
-- 
cgit v1.2.3


From b08e3e1342ff836e47767daa47211692d865e730 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 14:23:06 +0300
Subject: OMAPDSS: DISPC: Remove blocking code from dispc_wb_enable()

WB will not be used with compat-mode, i.e. from omapfb. This means we
don't need the current complex dispc_wb_enable function, but can have a
simple register write version of the function.

This patch removes all the extra code from dispc_wb_enable()

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 35 ++---------------------------------
 1 file changed, 2 insertions(+), 33 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index bc64d77a871..08c08d50727 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2810,43 +2810,12 @@ void dispc_mgr_disable_sync(enum omap_channel channel)
 
 void dispc_wb_enable(bool enable)
 {
-	enum omap_plane plane = OMAP_DSS_WB;
-	struct completion frame_done_completion;
-	bool is_on;
-	int r;
-	u32 irq;
-
-	is_on = REG_GET(DISPC_OVL_ATTRIBUTES(plane), 0, 0);
-	irq = DISPC_IRQ_FRAMEDONEWB;
-
-	if (!enable && is_on) {
-		init_completion(&frame_done_completion);
-
-		r = omap_dispc_register_isr(dispc_mgr_disable_isr,
-				&frame_done_completion, irq);
-		if (r)
-			DSSERR("failed to register FRAMEDONEWB isr\n");
-	}
-
-	REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), enable ? 1 : 0, 0, 0);
-
-	if (!enable && is_on) {
-		if (!wait_for_completion_timeout(&frame_done_completion,
-					msecs_to_jiffies(100)))
-			DSSERR("timeout waiting for FRAMEDONEWB\n");
-
-		r = omap_dispc_unregister_isr(dispc_mgr_disable_isr,
-				&frame_done_completion, irq);
-		if (r)
-			DSSERR("failed to unregister FRAMEDONEWB isr\n");
-	}
+	REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(OMAP_DSS_WB), enable ? 1 : 0, 0, 0);
 }
 
 bool dispc_wb_is_enabled(void)
 {
-	enum omap_plane plane = OMAP_DSS_WB;
-
-	return REG_GET(DISPC_OVL_ATTRIBUTES(plane), 0, 0);
+	return REG_GET(DISPC_OVL_ATTRIBUTES(OMAP_DSS_WB), 0, 0);
 }
 
 static void dispc_lcd_enable_signal_polarity(bool act_high)
-- 
cgit v1.2.3


From 916188a46618313eedb07acac00fa575c503ff25 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 14:13:26 +0300
Subject: OMAPDSS: cleanup WB enable/is_enabled functions

Instead of doing direct register reads/writes, dispc_wb_enable() and
dispc_wb_is_enabled() functions can use the common overlay functions to
set and check the enable bit.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 08c08d50727..942dd16f317 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2810,12 +2810,12 @@ void dispc_mgr_disable_sync(enum omap_channel channel)
 
 void dispc_wb_enable(bool enable)
 {
-	REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(OMAP_DSS_WB), enable ? 1 : 0, 0, 0);
+	dispc_ovl_enable(OMAP_DSS_WB, enable);
 }
 
 bool dispc_wb_is_enabled(void)
 {
-	return REG_GET(DISPC_OVL_ATTRIBUTES(OMAP_DSS_WB), 0, 0);
+	return dispc_ovl_enabled(OMAP_DSS_WB);
 }
 
 static void dispc_lcd_enable_signal_polarity(bool act_high)
-- 
cgit v1.2.3


From 3c91ee8cc9fa785ed9c4ad250d3f293f279153fe Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 15:06:07 +0300
Subject: OMAPDSS: DISPC: use WARN_ON() in dispc_mgr_go

dispc_mgr_go() should never be called with manager output disabled or if
the GO bit is already set. Change the current silent returns to
WARN_ONs.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 942dd16f317..531961424d3 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -569,20 +569,8 @@ bool dispc_mgr_go_busy(enum omap_channel channel)
 
 void dispc_mgr_go(enum omap_channel channel)
 {
-	bool enable_bit, go_bit;
-
-	/* if the channel is not enabled, we don't need GO */
-	enable_bit = mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE) == 1;
-
-	if (!enable_bit)
-		return;
-
-	go_bit = mgr_fld_read(channel, DISPC_MGR_FLD_GO) == 1;
-
-	if (go_bit) {
-		DSSERR("GO bit not down for channel %d\n", channel);
-		return;
-	}
+	WARN_ON(dispc_mgr_is_enabled(channel) == false);
+	WARN_ON(dispc_mgr_go_busy(channel));
 
 	DSSDBG("GO %s\n", mgr_desc[channel].name);
 
-- 
cgit v1.2.3


From 251886d8bc6f565c14acb34b12c007b994c2e56d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 15 Nov 2012 13:20:02 +0200
Subject: OMAPDSS: DISPC: pclk & lclk rates for writeback

Change the dispc_plane_pclk_rate and dispc_plane_lclk_rate functions to
return 0 if the given plane is the writeback plane. The clocks are not
valid for WB, but returning 0 from these functions instead of running
into BUG() will simplify the code that uses these functions.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 531961424d3..fff26fd5d17 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3232,14 +3232,24 @@ unsigned long dispc_core_clk_rate(void)
 
 static unsigned long dispc_plane_pclk_rate(enum omap_plane plane)
 {
-	enum omap_channel channel = dispc_ovl_get_channel_out(plane);
+	enum omap_channel channel;
+
+	if (plane == OMAP_DSS_WB)
+		return 0;
+
+	channel = dispc_ovl_get_channel_out(plane);
 
 	return dispc_mgr_pclk_rate(channel);
 }
 
 static unsigned long dispc_plane_lclk_rate(enum omap_plane plane)
 {
-	enum omap_channel channel = dispc_ovl_get_channel_out(plane);
+	enum omap_channel channel;
+
+	if (plane == OMAP_DSS_WB)
+		return 0;
+
+	channel	= dispc_ovl_get_channel_out(plane);
 
 	return dispc_mgr_lclk_rate(channel);
 }
-- 
cgit v1.2.3


From 8702ee50645ea2046bf91838bc615dffc8644fba Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 15:36:11 +0300
Subject: OMAPDSS: DISPC: pass pclk to calc_core_clk()

In order to make the scaling calculations independent of the current
hardware configuration (e.g. which manager is connected to this output),
we need to change the calc funcs to get all the variables needed for the
calculations via parameters.

This patch changes calc_core_clk() function to get pclk as a parameter.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 31 ++++++++++++-------------------
 1 file changed, 12 insertions(+), 19 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index fff26fd5d17..1704077b1f0 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -97,7 +97,7 @@ struct dispc_features {
 		enum omap_color_mode color_mode, bool *five_taps,
 		int *x_predecim, int *y_predecim, int *decim_x, int *decim_y,
 		u16 pos_x, unsigned long *core_clk, bool mem_to_mem);
-	unsigned long (*calc_core_clk) (enum omap_plane plane,
+	unsigned long (*calc_core_clk) (unsigned long pclk,
 		u16 width, u16 height, u16 out_width, u16 out_height,
 		bool mem_to_mem);
 	u8 num_fifos;
@@ -2044,14 +2044,13 @@ static int check_horiz_timing_omap3(enum omap_plane plane,
 	return 0;
 }
 
-static unsigned long calc_core_clk_five_taps(enum omap_plane plane,
+static unsigned long calc_core_clk_five_taps(unsigned long pclk,
 		const struct omap_video_timings *mgr_timings, u16 width,
 		u16 height, u16 out_width, u16 out_height,
 		enum omap_color_mode color_mode)
 {
 	u32 core_clk = 0;
 	u64 tmp;
-	unsigned long pclk = dispc_plane_pclk_rate(plane);
 
 	if (height <= out_height && width <= out_width)
 		return (unsigned long) pclk;
@@ -2085,22 +2084,19 @@ static unsigned long calc_core_clk_five_taps(enum omap_plane plane,
 	return core_clk;
 }
 
-static unsigned long calc_core_clk_24xx(enum omap_plane plane, u16 width,
+static unsigned long calc_core_clk_24xx(unsigned long pclk, u16 width,
 		u16 height, u16 out_width, u16 out_height, bool mem_to_mem)
 {
-	unsigned long pclk = dispc_plane_pclk_rate(plane);
-
 	if (height > out_height && width > out_width)
 		return pclk * 4;
 	else
 		return pclk * 2;
 }
 
-static unsigned long calc_core_clk_34xx(enum omap_plane plane, u16 width,
+static unsigned long calc_core_clk_34xx(unsigned long pclk, u16 width,
 		u16 height, u16 out_width, u16 out_height, bool mem_to_mem)
 {
 	unsigned int hf, vf;
-	unsigned long pclk = dispc_plane_pclk_rate(plane);
 
 	/*
 	 * FIXME how to determine the 'A' factor
@@ -2123,11 +2119,9 @@ static unsigned long calc_core_clk_34xx(enum omap_plane plane, u16 width,
 	return pclk * vf * hf;
 }
 
-static unsigned long calc_core_clk_44xx(enum omap_plane plane, u16 width,
+static unsigned long calc_core_clk_44xx(unsigned long pclk, u16 width,
 		u16 height, u16 out_width, u16 out_height, bool mem_to_mem)
 {
-	unsigned long pclk;
-
 	/*
 	 * If the overlay/writeback is in mem to mem mode, there are no
 	 * downscaling limitations with respect to pixel clock, return 1 as
@@ -2137,8 +2131,6 @@ static unsigned long calc_core_clk_44xx(enum omap_plane plane, u16 width,
 	if (mem_to_mem)
 		return 1;
 
-	pclk = dispc_plane_pclk_rate(plane);
-
 	if (width > out_width)
 		return DIV_ROUND_UP(pclk, out_width) * width;
 	else
@@ -2157,13 +2149,14 @@ static int dispc_ovl_calc_scaling_24xx(enum omap_plane plane,
 	int min_factor = min(*decim_x, *decim_y);
 	const int maxsinglelinewidth =
 			dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
+	unsigned long pclk = dispc_plane_pclk_rate(plane);
 
 	*five_taps = false;
 
 	do {
 		in_height = DIV_ROUND_UP(height, *decim_y);
 		in_width = DIV_ROUND_UP(width, *decim_x);
-		*core_clk = dispc.feat->calc_core_clk(plane, in_width,
+		*core_clk = dispc.feat->calc_core_clk(pclk, in_width,
 				in_height, out_width, out_height, mem_to_mem);
 		error = (in_width > maxsinglelinewidth || !*core_clk ||
 			*core_clk > dispc_core_clk_rate());
@@ -2198,11 +2191,12 @@ static int dispc_ovl_calc_scaling_34xx(enum omap_plane plane,
 	int min_factor = min(*decim_x, *decim_y);
 	const int maxsinglelinewidth =
 			dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
+	unsigned long pclk = dispc_plane_pclk_rate(plane);
 
 	do {
 		in_height = DIV_ROUND_UP(height, *decim_y);
 		in_width = DIV_ROUND_UP(width, *decim_x);
-		*core_clk = calc_core_clk_five_taps(plane, mgr_timings,
+		*core_clk = calc_core_clk_five_taps(pclk, mgr_timings,
 			in_width, in_height, out_width, out_height, color_mode);
 
 		error = check_horiz_timing_omap3(plane, mgr_timings,
@@ -2214,7 +2208,7 @@ static int dispc_ovl_calc_scaling_34xx(enum omap_plane plane,
 						in_height < out_height * 2)
 				*five_taps = false;
 		if (!*five_taps)
-			*core_clk = dispc.feat->calc_core_clk(plane, in_width,
+			*core_clk = dispc.feat->calc_core_clk(pclk, in_width,
 					in_height, out_width, out_height,
 					mem_to_mem);
 
@@ -2265,12 +2259,11 @@ static int dispc_ovl_calc_scaling_44xx(enum omap_plane plane,
 	const int maxsinglelinewidth =
 				dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
 	const int maxdownscale = dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE);
+	unsigned long pclk = dispc_plane_pclk_rate(plane);
 
 	if (mem_to_mem) {
 		in_width_max = out_width * maxdownscale;
 	} else {
-		unsigned long pclk = dispc_plane_pclk_rate(plane);
-
 		in_width_max = dispc_core_clk_rate() /
 					DIV_ROUND_UP(pclk, out_width);
 	}
@@ -2291,7 +2284,7 @@ static int dispc_ovl_calc_scaling_44xx(enum omap_plane plane,
 		return -EINVAL;
 	}
 
-	*core_clk = dispc.feat->calc_core_clk(plane, in_width, in_height,
+	*core_clk = dispc.feat->calc_core_clk(pclk, in_width, in_height,
 				out_width, out_height, mem_to_mem);
 	return 0;
 }
-- 
cgit v1.2.3


From 465ec13f600f1cba4def9540a450c9263c93cf8c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 15:40:24 +0300
Subject: OMAPDSS: DISPC: pass pclk & lclk to check_horiz_timing_omap3

In order to make the scaling calculations independent of the current
hardware configuration (e.g. which manager is connected to this output),
we need to change the calc funcs to get all the variables needed for the
calculations via parameters.

This patch changes check_horiz_timing_omap3() to get pclk and lclk as
parameters.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 1704077b1f0..f274a77684b 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1995,7 +1995,7 @@ static void calc_tiler_rotation_offset(u16 screen_width, u16 width,
  * This function is used to avoid synclosts in OMAP3, because of some
  * undocumented horizontal position and timing related limitations.
  */
-static int check_horiz_timing_omap3(enum omap_plane plane,
+static int check_horiz_timing_omap3(unsigned long pclk, unsigned long lclk,
 		const struct omap_video_timings *t, u16 pos_x,
 		u16 width, u16 height, u16 out_width, u16 out_height)
 {
@@ -2003,8 +2003,6 @@ static int check_horiz_timing_omap3(enum omap_plane plane,
 	unsigned long nonactive;
 	static const u8 limits[3] = { 8, 10, 20 };
 	u64 val, blank;
-	unsigned long pclk = dispc_plane_pclk_rate(plane);
-	unsigned long lclk = dispc_plane_lclk_rate(plane);
 	int i;
 
 	nonactive = t->x_res + t->hfp + t->hsw + t->hbp - out_width;
@@ -2192,6 +2190,7 @@ static int dispc_ovl_calc_scaling_34xx(enum omap_plane plane,
 	const int maxsinglelinewidth =
 			dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
 	unsigned long pclk = dispc_plane_pclk_rate(plane);
+	unsigned long lclk = dispc_plane_lclk_rate(plane);
 
 	do {
 		in_height = DIV_ROUND_UP(height, *decim_y);
@@ -2199,7 +2198,7 @@ static int dispc_ovl_calc_scaling_34xx(enum omap_plane plane,
 		*core_clk = calc_core_clk_five_taps(pclk, mgr_timings,
 			in_width, in_height, out_width, out_height, color_mode);
 
-		error = check_horiz_timing_omap3(plane, mgr_timings,
+		error = check_horiz_timing_omap3(pclk, lclk, mgr_timings,
 				pos_x, in_width, in_height, out_width,
 				out_height);
 
@@ -2227,8 +2226,8 @@ static int dispc_ovl_calc_scaling_34xx(enum omap_plane plane,
 		}
 	} while (*decim_x <= *x_predecim && *decim_y <= *y_predecim && error);
 
-	if (check_horiz_timing_omap3(plane, mgr_timings, pos_x, width, height,
-		out_width, out_height)){
+	if (check_horiz_timing_omap3(pclk, lclk, mgr_timings, pos_x, width,
+				height, out_width, out_height)){
 			DSSERR("horizontal timing too tight\n");
 			return -EINVAL;
 	}
-- 
cgit v1.2.3


From 0c6921de3710465ca35179b6e327e8b67b9ffaf7 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 15:43:29 +0300
Subject: OMAPDSS: DISPC: pass pclk & lclk to calc_scaling

In order to make the scaling calculations independent of the current
hardware configuration (e.g. which manager is connected to this output),
we need to change the calc funcs to get all the variables needed for the
calculations via parameters.

This patch changes calc_scaling to get pclk and lclk as parameters.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index f274a77684b..7bcc5f0d56e 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -91,7 +91,7 @@ struct dispc_features {
 	u8 mgr_height_start;
 	u16 mgr_width_max;
 	u16 mgr_height_max;
-	int (*calc_scaling) (enum omap_plane plane,
+	int (*calc_scaling) (unsigned long pclk, unsigned long lclk,
 		const struct omap_video_timings *mgr_timings,
 		u16 width, u16 height, u16 out_width, u16 out_height,
 		enum omap_color_mode color_mode, bool *five_taps,
@@ -2135,7 +2135,7 @@ static unsigned long calc_core_clk_44xx(unsigned long pclk, u16 width,
 		return pclk;
 }
 
-static int dispc_ovl_calc_scaling_24xx(enum omap_plane plane,
+static int dispc_ovl_calc_scaling_24xx(unsigned long pclk, unsigned long lclk,
 		const struct omap_video_timings *mgr_timings,
 		u16 width, u16 height, u16 out_width, u16 out_height,
 		enum omap_color_mode color_mode, bool *five_taps,
@@ -2147,7 +2147,6 @@ static int dispc_ovl_calc_scaling_24xx(enum omap_plane plane,
 	int min_factor = min(*decim_x, *decim_y);
 	const int maxsinglelinewidth =
 			dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
-	unsigned long pclk = dispc_plane_pclk_rate(plane);
 
 	*five_taps = false;
 
@@ -2177,7 +2176,7 @@ static int dispc_ovl_calc_scaling_24xx(enum omap_plane plane,
 	return 0;
 }
 
-static int dispc_ovl_calc_scaling_34xx(enum omap_plane plane,
+static int dispc_ovl_calc_scaling_34xx(unsigned long pclk, unsigned long lclk,
 		const struct omap_video_timings *mgr_timings,
 		u16 width, u16 height, u16 out_width, u16 out_height,
 		enum omap_color_mode color_mode, bool *five_taps,
@@ -2189,8 +2188,6 @@ static int dispc_ovl_calc_scaling_34xx(enum omap_plane plane,
 	int min_factor = min(*decim_x, *decim_y);
 	const int maxsinglelinewidth =
 			dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
-	unsigned long pclk = dispc_plane_pclk_rate(plane);
-	unsigned long lclk = dispc_plane_lclk_rate(plane);
 
 	do {
 		in_height = DIV_ROUND_UP(height, *decim_y);
@@ -2245,7 +2242,7 @@ static int dispc_ovl_calc_scaling_34xx(enum omap_plane plane,
 	return 0;
 }
 
-static int dispc_ovl_calc_scaling_44xx(enum omap_plane plane,
+static int dispc_ovl_calc_scaling_44xx(unsigned long pclk, unsigned long lclk,
 		const struct omap_video_timings *mgr_timings,
 		u16 width, u16 height, u16 out_width, u16 out_height,
 		enum omap_color_mode color_mode, bool *five_taps,
@@ -2258,7 +2255,6 @@ static int dispc_ovl_calc_scaling_44xx(enum omap_plane plane,
 	const int maxsinglelinewidth =
 				dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
 	const int maxdownscale = dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE);
-	unsigned long pclk = dispc_plane_pclk_rate(plane);
 
 	if (mem_to_mem) {
 		in_width_max = out_width * maxdownscale;
@@ -2300,6 +2296,8 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
 	const int max_decim_limit = 16;
 	unsigned long core_clk = 0;
 	int decim_x, decim_y, ret;
+	unsigned long pclk = dispc_plane_pclk_rate(plane);
+	unsigned long lclk = dispc_plane_lclk_rate(plane);
 
 	if (width == out_width && height == out_height)
 		return 0;
@@ -2335,7 +2333,7 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
 	if (decim_y > *y_predecim || out_height > height * 8)
 		return -EINVAL;
 
-	ret = dispc.feat->calc_scaling(plane, mgr_timings, width, height,
+	ret = dispc.feat->calc_scaling(pclk, lclk, mgr_timings, width, height,
 		out_width, out_height, color_mode, five_taps,
 		x_predecim, y_predecim, &decim_x, &decim_y, pos_x, &core_clk,
 		mem_to_mem);
-- 
cgit v1.2.3


From 74e164588ec0b0c570f5525d10800f54342833b1 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 15:46:30 +0300
Subject: OMAPDSS: DISPC: pass pclk & lclk to dispc_ovl_calc_scaling

In order to make the scaling calculations independent of the current
hardware configuration (e.g. which manager is connected to this output),
we need to change the calc funcs to get all the variables needed for the
calculations via parameters.

This patch changes dispc_ovl_calc_scaling to get pclk and lclk as
parameters.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 7bcc5f0d56e..ce594a1d860 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2284,7 +2284,7 @@ static int dispc_ovl_calc_scaling_44xx(unsigned long pclk, unsigned long lclk,
 	return 0;
 }
 
-static int dispc_ovl_calc_scaling(enum omap_plane plane,
+static int dispc_ovl_calc_scaling(unsigned long pclk, unsigned long lclk,
 		enum omap_overlay_caps caps,
 		const struct omap_video_timings *mgr_timings,
 		u16 width, u16 height, u16 out_width, u16 out_height,
@@ -2296,8 +2296,6 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
 	const int max_decim_limit = 16;
 	unsigned long core_clk = 0;
 	int decim_x, decim_y, ret;
-	unsigned long pclk = dispc_plane_pclk_rate(plane);
-	unsigned long lclk = dispc_plane_lclk_rate(plane);
 
 	if (width == out_width && height == out_height)
 		return 0;
@@ -2305,7 +2303,7 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
 	if ((caps & OMAP_DSS_OVL_CAP_SCALE) == 0)
 		return -EINVAL;
 
-	if (plane == OMAP_DSS_WB) {
+	if (mem_to_mem) {
 		*x_predecim = *y_predecim = 1;
 	} else {
 		*x_predecim = max_decim_limit;
@@ -2377,6 +2375,8 @@ static int dispc_ovl_setup_common(enum omap_plane plane,
 	u16 in_width = width;
 	int x_predecim = 1, y_predecim = 1;
 	bool ilace = mgr_timings->interlace;
+	unsigned long pclk = dispc_plane_pclk_rate(plane);
+	unsigned long lclk = dispc_plane_lclk_rate(plane);
 
 	if (paddr == 0)
 		return -EINVAL;
@@ -2401,7 +2401,7 @@ static int dispc_ovl_setup_common(enum omap_plane plane,
 	if (!dss_feat_color_mode_supported(plane, color_mode))
 		return -EINVAL;
 
-	r = dispc_ovl_calc_scaling(plane, caps, mgr_timings, in_width,
+	r = dispc_ovl_calc_scaling(pclk, lclk, caps, mgr_timings, in_width,
 			in_height, out_width, out_height, color_mode,
 			&five_taps, &x_predecim, &y_predecim, pos_x,
 			rotation_type, mem_to_mem);
-- 
cgit v1.2.3


From 3f30b8c2b6f20a00a97929fdbe7191e2a5e74064 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 8 Nov 2012 13:13:02 +0200
Subject: OMAPDSS: create display-sysfs.c

Move display sysfs related code from display.c to display-sysfs.c, for
clarity. The sysfs code will only be used for compat mode.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile        |   3 +-
 drivers/video/omap2/dss/display-sysfs.c | 321 ++++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/display.c       | 281 +---------------------------
 drivers/video/omap2/dss/dss.h           |   5 +
 4 files changed, 331 insertions(+), 279 deletions(-)
 create mode 100644 drivers/video/omap2/dss/display-sysfs.c

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index 40701910f73..af866d0b794 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -1,6 +1,7 @@
 obj-$(CONFIG_OMAP2_DSS) += omapdss.o
 omapdss-y := core.o dss.o dss_features.o dispc.o dispc_coefs.o display.o \
-	manager.o manager-sysfs.o overlay.o overlay-sysfs.o output.o apply.o
+	manager.o manager-sysfs.o overlay.o overlay-sysfs.o output.o apply.o \
+	display-sysfs.o
 omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o
 omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o venc_panel.o
diff --git a/drivers/video/omap2/dss/display-sysfs.c b/drivers/video/omap2/dss/display-sysfs.c
new file mode 100644
index 00000000000..18211a9ab35
--- /dev/null
+++ b/drivers/video/omap2/dss/display-sysfs.c
@@ -0,0 +1,321 @@
+/*
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "DISPLAY"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+
+#include <video/omapdss.h>
+#include "dss.h"
+#include "dss_features.h"
+
+static ssize_t display_enabled_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED;
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", enabled);
+}
+
+static ssize_t display_enabled_store(struct device *dev,
+		struct device_attribute *attr,
+		const char *buf, size_t size)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	int r;
+	bool enabled;
+
+	r = strtobool(buf, &enabled);
+	if (r)
+		return r;
+
+	if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) {
+		if (enabled) {
+			r = dssdev->driver->enable(dssdev);
+			if (r)
+				return r;
+		} else {
+			dssdev->driver->disable(dssdev);
+		}
+	}
+
+	return size;
+}
+
+static ssize_t display_tear_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	return snprintf(buf, PAGE_SIZE, "%d\n",
+			dssdev->driver->get_te ?
+			dssdev->driver->get_te(dssdev) : 0);
+}
+
+static ssize_t display_tear_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	int r;
+	bool te;
+
+	if (!dssdev->driver->enable_te || !dssdev->driver->get_te)
+		return -ENOENT;
+
+	r = strtobool(buf, &te);
+	if (r)
+		return r;
+
+	r = dssdev->driver->enable_te(dssdev, te);
+	if (r)
+		return r;
+
+	return size;
+}
+
+static ssize_t display_timings_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	struct omap_video_timings t;
+
+	if (!dssdev->driver->get_timings)
+		return -ENOENT;
+
+	dssdev->driver->get_timings(dssdev, &t);
+
+	return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n",
+			t.pixel_clock,
+			t.x_res, t.hfp, t.hbp, t.hsw,
+			t.y_res, t.vfp, t.vbp, t.vsw);
+}
+
+static ssize_t display_timings_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	struct omap_video_timings t = dssdev->panel.timings;
+	int r, found;
+
+	if (!dssdev->driver->set_timings || !dssdev->driver->check_timings)
+		return -ENOENT;
+
+	found = 0;
+#ifdef CONFIG_OMAP2_DSS_VENC
+	if (strncmp("pal", buf, 3) == 0) {
+		t = omap_dss_pal_timings;
+		found = 1;
+	} else if (strncmp("ntsc", buf, 4) == 0) {
+		t = omap_dss_ntsc_timings;
+		found = 1;
+	}
+#endif
+	if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu",
+				&t.pixel_clock,
+				&t.x_res, &t.hfp, &t.hbp, &t.hsw,
+				&t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9)
+		return -EINVAL;
+
+	r = dssdev->driver->check_timings(dssdev, &t);
+	if (r)
+		return r;
+
+	dssdev->driver->disable(dssdev);
+	dssdev->driver->set_timings(dssdev, &t);
+	r = dssdev->driver->enable(dssdev);
+	if (r)
+		return r;
+
+	return size;
+}
+
+static ssize_t display_rotate_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	int rotate;
+	if (!dssdev->driver->get_rotate)
+		return -ENOENT;
+	rotate = dssdev->driver->get_rotate(dssdev);
+	return snprintf(buf, PAGE_SIZE, "%u\n", rotate);
+}
+
+static ssize_t display_rotate_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	int rot, r;
+
+	if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate)
+		return -ENOENT;
+
+	r = kstrtoint(buf, 0, &rot);
+	if (r)
+		return r;
+
+	r = dssdev->driver->set_rotate(dssdev, rot);
+	if (r)
+		return r;
+
+	return size;
+}
+
+static ssize_t display_mirror_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	int mirror;
+	if (!dssdev->driver->get_mirror)
+		return -ENOENT;
+	mirror = dssdev->driver->get_mirror(dssdev);
+	return snprintf(buf, PAGE_SIZE, "%u\n", mirror);
+}
+
+static ssize_t display_mirror_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	int r;
+	bool mirror;
+
+	if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror)
+		return -ENOENT;
+
+	r = strtobool(buf, &mirror);
+	if (r)
+		return r;
+
+	r = dssdev->driver->set_mirror(dssdev, mirror);
+	if (r)
+		return r;
+
+	return size;
+}
+
+static ssize_t display_wss_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	unsigned int wss;
+
+	if (!dssdev->driver->get_wss)
+		return -ENOENT;
+
+	wss = dssdev->driver->get_wss(dssdev);
+
+	return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss);
+}
+
+static ssize_t display_wss_store(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t size)
+{
+	struct omap_dss_device *dssdev = to_dss_device(dev);
+	u32 wss;
+	int r;
+
+	if (!dssdev->driver->get_wss || !dssdev->driver->set_wss)
+		return -ENOENT;
+
+	r = kstrtou32(buf, 0, &wss);
+	if (r)
+		return r;
+
+	if (wss > 0xfffff)
+		return -EINVAL;
+
+	r = dssdev->driver->set_wss(dssdev, wss);
+	if (r)
+		return r;
+
+	return size;
+}
+
+static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR,
+		display_enabled_show, display_enabled_store);
+static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR,
+		display_tear_show, display_tear_store);
+static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR,
+		display_timings_show, display_timings_store);
+static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR,
+		display_rotate_show, display_rotate_store);
+static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR,
+		display_mirror_show, display_mirror_store);
+static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR,
+		display_wss_show, display_wss_store);
+
+static struct device_attribute *display_sysfs_attrs[] = {
+	&dev_attr_enabled,
+	&dev_attr_tear_elim,
+	&dev_attr_timings,
+	&dev_attr_rotate,
+	&dev_attr_mirror,
+	&dev_attr_wss,
+	NULL
+};
+
+int display_init_sysfs(struct platform_device *pdev,
+		struct omap_dss_device *dssdev)
+{
+	struct device_attribute *attr;
+	int i, r;
+
+	/* create device sysfs files */
+	i = 0;
+	while ((attr = display_sysfs_attrs[i++]) != NULL) {
+		r = device_create_file(&dssdev->dev, attr);
+		if (r) {
+			for (i = i - 2; i >= 0; i--) {
+				attr = display_sysfs_attrs[i];
+				device_remove_file(&dssdev->dev, attr);
+			}
+
+			DSSERR("failed to create sysfs file\n");
+			return r;
+		}
+	}
+
+	/* create display? sysfs links */
+	r = sysfs_create_link(&pdev->dev.kobj, &dssdev->dev.kobj,
+			dev_name(&dssdev->dev));
+	if (r) {
+		while ((attr = display_sysfs_attrs[i++]) != NULL)
+			device_remove_file(&dssdev->dev, attr);
+
+		DSSERR("failed to create sysfs display link\n");
+		return r;
+	}
+
+	return 0;
+}
+
+void display_uninit_sysfs(struct platform_device *pdev,
+		struct omap_dss_device *dssdev)
+{
+	struct device_attribute *attr;
+	int i = 0;
+
+	sysfs_remove_link(&pdev->dev.kobj, dev_name(&dssdev->dev));
+
+	while ((attr = display_sysfs_attrs[i++]) != NULL)
+		device_remove_file(&dssdev->dev, attr);
+}
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index 6d33112c599..008e9eecaf7 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -31,250 +31,6 @@
 #include "dss.h"
 #include "dss_features.h"
 
-static ssize_t display_enabled_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED;
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", enabled);
-}
-
-static ssize_t display_enabled_store(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf, size_t size)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	int r;
-	bool enabled;
-
-	r = strtobool(buf, &enabled);
-	if (r)
-		return r;
-
-	if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) {
-		if (enabled) {
-			r = dssdev->driver->enable(dssdev);
-			if (r)
-				return r;
-		} else {
-			dssdev->driver->disable(dssdev);
-		}
-	}
-
-	return size;
-}
-
-static ssize_t display_tear_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	return snprintf(buf, PAGE_SIZE, "%d\n",
-			dssdev->driver->get_te ?
-			dssdev->driver->get_te(dssdev) : 0);
-}
-
-static ssize_t display_tear_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t size)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	int r;
-	bool te;
-
-	if (!dssdev->driver->enable_te || !dssdev->driver->get_te)
-		return -ENOENT;
-
-	r = strtobool(buf, &te);
-	if (r)
-		return r;
-
-	r = dssdev->driver->enable_te(dssdev, te);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static ssize_t display_timings_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	struct omap_video_timings t;
-
-	if (!dssdev->driver->get_timings)
-		return -ENOENT;
-
-	dssdev->driver->get_timings(dssdev, &t);
-
-	return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n",
-			t.pixel_clock,
-			t.x_res, t.hfp, t.hbp, t.hsw,
-			t.y_res, t.vfp, t.vbp, t.vsw);
-}
-
-static ssize_t display_timings_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t size)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	struct omap_video_timings t = dssdev->panel.timings;
-	int r, found;
-
-	if (!dssdev->driver->set_timings || !dssdev->driver->check_timings)
-		return -ENOENT;
-
-	found = 0;
-#ifdef CONFIG_OMAP2_DSS_VENC
-	if (strncmp("pal", buf, 3) == 0) {
-		t = omap_dss_pal_timings;
-		found = 1;
-	} else if (strncmp("ntsc", buf, 4) == 0) {
-		t = omap_dss_ntsc_timings;
-		found = 1;
-	}
-#endif
-	if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu",
-				&t.pixel_clock,
-				&t.x_res, &t.hfp, &t.hbp, &t.hsw,
-				&t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9)
-		return -EINVAL;
-
-	r = dssdev->driver->check_timings(dssdev, &t);
-	if (r)
-		return r;
-
-	dssdev->driver->disable(dssdev);
-	dssdev->driver->set_timings(dssdev, &t);
-	r = dssdev->driver->enable(dssdev);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static ssize_t display_rotate_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	int rotate;
-	if (!dssdev->driver->get_rotate)
-		return -ENOENT;
-	rotate = dssdev->driver->get_rotate(dssdev);
-	return snprintf(buf, PAGE_SIZE, "%u\n", rotate);
-}
-
-static ssize_t display_rotate_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t size)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	int rot, r;
-
-	if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate)
-		return -ENOENT;
-
-	r = kstrtoint(buf, 0, &rot);
-	if (r)
-		return r;
-
-	r = dssdev->driver->set_rotate(dssdev, rot);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static ssize_t display_mirror_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	int mirror;
-	if (!dssdev->driver->get_mirror)
-		return -ENOENT;
-	mirror = dssdev->driver->get_mirror(dssdev);
-	return snprintf(buf, PAGE_SIZE, "%u\n", mirror);
-}
-
-static ssize_t display_mirror_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t size)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	int r;
-	bool mirror;
-
-	if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror)
-		return -ENOENT;
-
-	r = strtobool(buf, &mirror);
-	if (r)
-		return r;
-
-	r = dssdev->driver->set_mirror(dssdev, mirror);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static ssize_t display_wss_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	unsigned int wss;
-
-	if (!dssdev->driver->get_wss)
-		return -ENOENT;
-
-	wss = dssdev->driver->get_wss(dssdev);
-
-	return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss);
-}
-
-static ssize_t display_wss_store(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t size)
-{
-	struct omap_dss_device *dssdev = to_dss_device(dev);
-	u32 wss;
-	int r;
-
-	if (!dssdev->driver->get_wss || !dssdev->driver->set_wss)
-		return -ENOENT;
-
-	r = kstrtou32(buf, 0, &wss);
-	if (r)
-		return r;
-
-	if (wss > 0xfffff)
-		return -EINVAL;
-
-	r = dssdev->driver->set_wss(dssdev, wss);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR,
-		display_enabled_show, display_enabled_store);
-static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR,
-		display_tear_show, display_tear_store);
-static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR,
-		display_timings_show, display_timings_store);
-static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR,
-		display_rotate_show, display_rotate_store);
-static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR,
-		display_mirror_show, display_mirror_store);
-static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR,
-		display_wss_show, display_wss_store);
-
-static struct device_attribute *display_sysfs_attrs[] = {
-	&dev_attr_enabled,
-	&dev_attr_tear_elim,
-	&dev_attr_timings,
-	&dev_attr_rotate,
-	&dev_attr_mirror,
-	&dev_attr_wss,
-	NULL
-};
-
 void omapdss_default_get_resolution(struct omap_dss_device *dssdev,
 			u16 *xres, u16 *yres)
 {
@@ -323,9 +79,8 @@ EXPORT_SYMBOL(omapdss_default_get_timings);
 int dss_init_device(struct platform_device *pdev,
 		struct omap_dss_device *dssdev)
 {
-	struct device_attribute *attr;
 	struct omap_dss_output *out;
-	int i, r;
+	int r;
 
 	out = omapdss_get_output_from_dssdev(dssdev);
 
@@ -335,33 +90,9 @@ int dss_init_device(struct platform_device *pdev,
 		return r;
 	}
 
-	/* create device sysfs files */
-	i = 0;
-	while ((attr = display_sysfs_attrs[i++]) != NULL) {
-		r = device_create_file(&dssdev->dev, attr);
-		if (r) {
-			for (i = i - 2; i >= 0; i--) {
-				attr = display_sysfs_attrs[i];
-				device_remove_file(&dssdev->dev, attr);
-			}
-
-			omapdss_output_unset_device(dssdev->output);
-
-			DSSERR("failed to create sysfs file\n");
-			return r;
-		}
-	}
-
-	/* create display? sysfs links */
-	r = sysfs_create_link(&pdev->dev.kobj, &dssdev->dev.kobj,
-			dev_name(&dssdev->dev));
+	r = display_init_sysfs(pdev, dssdev);
 	if (r) {
-		while ((attr = display_sysfs_attrs[i++]) != NULL)
-			device_remove_file(&dssdev->dev, attr);
-
 		omapdss_output_unset_device(dssdev->output);
-
-		DSSERR("failed to create sysfs display link\n");
 		return r;
 	}
 
@@ -371,13 +102,7 @@ int dss_init_device(struct platform_device *pdev,
 void dss_uninit_device(struct platform_device *pdev,
 		struct omap_dss_device *dssdev)
 {
-	struct device_attribute *attr;
-	int i = 0;
-
-	sysfs_remove_link(&pdev->dev.kobj, dev_name(&dssdev->dev));
-
-	while ((attr = display_sysfs_attrs[i++]) != NULL)
-		device_remove_file(&dssdev->dev, attr);
+	display_uninit_sysfs(pdev, dssdev);
 
 	if (dssdev->output)
 		omapdss_output_unset_device(dssdev->output);
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 09d0651469a..6c3cfb3352d 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -224,6 +224,11 @@ int dss_init_device(struct platform_device *pdev,
 void dss_uninit_device(struct platform_device *pdev,
 		struct omap_dss_device *dssdev);
 
+int display_init_sysfs(struct platform_device *pdev,
+		struct omap_dss_device *dssdev);
+void display_uninit_sysfs(struct platform_device *pdev,
+		struct omap_dss_device *dssdev);
+
 /* manager */
 int dss_init_overlay_managers(struct platform_device *pdev);
 void dss_uninit_overlay_managers(struct platform_device *pdev);
-- 
cgit v1.2.3


From 8f46efadf30476692a2f311ad335077ba8fca383 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 10:46:06 +0300
Subject: OMAPDSS: add dss_get_core_pdev()

Add dss_get_core_pdev() which returns the platform device for dss core
device. The following patches use the core pdev to register sysfs files
in the compat code.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/core.c | 5 +++++
 drivers/video/omap2/dss/dss.h  | 1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index b1a9ce1188f..8c308317a19 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -66,6 +66,11 @@ enum omapdss_version omapdss_get_version(void)
 }
 EXPORT_SYMBOL(omapdss_get_version);
 
+struct platform_device *dss_get_core_pdev(void)
+{
+	return core.pdev;
+}
+
 /* REGULATORS */
 
 struct regulator *dss_get_vdds_dsi(void)
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 6c3cfb3352d..9ee3c881d1c 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -160,6 +160,7 @@ struct seq_file;
 struct platform_device;
 
 /* core */
+struct platform_device *dss_get_core_pdev(void);
 struct bus_type *dss_get_bus(void);
 struct regulator *dss_get_vdds_dsi(void);
 struct regulator *dss_get_vdds_sdi(void);
-- 
cgit v1.2.3


From bdb736abfad5d61d1004dcc11dae2f7b651e5bb4 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 28 Nov 2012 17:01:39 +0530
Subject: OMAPDSS: Use only "omapdss_dss" platform device to get context lost
 count

When enabling a hwmod, omap_hwmod refers to the register mentioned in the
hwmod struct's member 'prcm.omap4.context_offs' to see whether context was
lost or not. It increments the context lost count for the hwmod and then clears
the register.

All the DSS hwmods have the same register(RM_DSS_DSS_CONTEXT) as context_offs.
When DSS is enabled, the first hwmod to be enabled is the "dss_core" hwmod since
it's corresponding platform device is the parent platform device("omapdss_dss").
The dss_core hwmod updates it's context lost count correctly and clears the
register. When the hwmods corresponding to the children platform devices are
enabled, they see that the register is clear, and don't increment their context
lost count. Therefore, all the children platform devices never report a loss in
context.

The DISPC driver currently gets the context lost count for DSS power domain from
it's corresponding platform device instance("omapdss_dispc"). The DISPC platform
device is one of the child devices, and it's corresponding hwmod("dss_dispc")
doesn't report the context lost count correctly.

Modify dss_get_ctx_loss_count() such that it always takes the "omapdss_dss"
platform device as it's input, move the function to dss.c so that it has access
to that platform device.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/core.c  | 15 ---------------
 drivers/video/omap2/dss/dispc.c |  4 ++--
 drivers/video/omap2/dss/dss.c   | 15 +++++++++++++++
 drivers/video/omap2/dss/dss.h   |  3 ++-
 4 files changed, 19 insertions(+), 18 deletions(-)

diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 8c308317a19..5c5e5919058 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -101,21 +101,6 @@ struct regulator *dss_get_vdds_sdi(void)
 	return reg;
 }
 
-int dss_get_ctx_loss_count(struct device *dev)
-{
-	struct omap_dss_board_info *board_data = core.pdev->dev.platform_data;
-	int cnt;
-
-	if (!board_data->get_context_loss_count)
-		return -ENOENT;
-
-	cnt = board_data->get_context_loss_count(dev);
-
-	WARN_ONCE(cnt < 0, "get_context_loss_count failed: %d\n", cnt);
-
-	return cnt;
-}
-
 int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask)
 {
 	struct omap_dss_board_info *board_data = core.pdev->dev.platform_data;
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index ce594a1d860..f7df5230678 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -382,7 +382,7 @@ static void dispc_save_context(void)
 	if (dss_has_feature(FEAT_CORE_CLK_DIV))
 		SR(DIVISOR);
 
-	dispc.ctx_loss_cnt = dss_get_ctx_loss_count(&dispc.pdev->dev);
+	dispc.ctx_loss_cnt = dss_get_ctx_loss_count();
 	dispc.ctx_valid = true;
 
 	DSSDBG("context saved, ctx_loss_count %d\n", dispc.ctx_loss_cnt);
@@ -397,7 +397,7 @@ static void dispc_restore_context(void)
 	if (!dispc.ctx_valid)
 		return;
 
-	ctx = dss_get_ctx_loss_count(&dispc.pdev->dev);
+	ctx = dss_get_ctx_loss_count();
 
 	if (ctx >= 0 && ctx == dispc.ctx_loss_cnt)
 		return;
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 6ca69d55cf5..833f1627dc7 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -154,6 +154,21 @@ static void dss_restore_context(void)
 #undef SR
 #undef RR
 
+int dss_get_ctx_loss_count(void)
+{
+	struct omap_dss_board_info *board_data = dss.pdev->dev.platform_data;
+	int cnt;
+
+	if (!board_data->get_context_loss_count)
+		return -ENOENT;
+
+	cnt = board_data->get_context_loss_count(&dss.pdev->dev);
+
+	WARN_ONCE(cnt < 0, "get_context_loss_count failed: %d\n", cnt);
+
+	return cnt;
+}
+
 void dss_sdi_init(int datapairs)
 {
 	u32 l;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 9ee3c881d1c..4d6f325cee8 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -164,7 +164,6 @@ struct platform_device *dss_get_core_pdev(void);
 struct bus_type *dss_get_bus(void);
 struct regulator *dss_get_vdds_dsi(void);
 struct regulator *dss_get_vdds_sdi(void);
-int dss_get_ctx_loss_count(struct device *dev);
 int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask);
 void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask);
 int dss_set_min_bus_tput(struct device *dev, unsigned long tput);
@@ -284,6 +283,8 @@ void dss_dump_clocks(struct seq_file *s);
 void dss_debug_dump_clocks(struct seq_file *s);
 #endif
 
+int dss_get_ctx_loss_count(void);
+
 void dss_sdi_init(int datapairs);
 int dss_sdi_enable(void);
 void dss_sdi_disable(void);
-- 
cgit v1.2.3


From 950e2fb420d54bf0ee0de2fb0f146827a98330bf Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 12 Nov 2012 15:17:39 +0200
Subject: [media] omap_vout: use omapdss's version instead of cpu_is_*

cpu_is_* class functions create a dependency to OMAP platform code.
omapdss driver, which omap_vout uses, exposes a function to get the
version of the DSS hardware.

To remove the dependency to OMAP platform code this patch changes
omap_vout to use the omapdss version. For most of the checks, the ones
dealing with DSS differences, this is actually more correct than using
cpu_is_* functions. For the check whether VRFB is available or not this
is not really correct, but still works fine.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/platform/omap/omap_vout.c    |  3 +--
 drivers/media/platform/omap/omap_voutlib.c | 38 ++++++++++++++++++++++--------
 drivers/media/platform/omap/omap_voutlib.h |  3 +++
 3 files changed, 32 insertions(+), 12 deletions(-)

diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
index 3ff94a30fde..7b1afc8585c 100644
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -44,7 +44,6 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
 
-#include <plat/cpu.h>
 #include <plat/dma.h>
 #include <video/omapvrfb.h>
 #include <video/omapdss.h>
@@ -2064,7 +2063,7 @@ static int __init omap_vout_create_video_devices(struct platform_device *pdev)
 		vout->vid_info.id = k + 1;
 
 		/* Set VRFB as rotation_type for omap2 and omap3 */
-		if (cpu_is_omap24xx() || cpu_is_omap34xx())
+		if (omap_vout_dss_omap24xx() || omap_vout_dss_omap34xx())
 			vout->vid_info.rotation_type = VOUT_ROT_VRFB;
 
 		/* Setup the default configuration for the video devices
diff --git a/drivers/media/platform/omap/omap_voutlib.c b/drivers/media/platform/omap/omap_voutlib.c
index 115408b9274..80b0d88f125 100644
--- a/drivers/media/platform/omap/omap_voutlib.c
+++ b/drivers/media/platform/omap/omap_voutlib.c
@@ -26,7 +26,7 @@
 
 #include <linux/dma-mapping.h>
 
-#include <plat/cpu.h>
+#include <video/omapdss.h>
 
 #include "omap_voutlib.h"
 
@@ -124,7 +124,7 @@ int omap_vout_new_window(struct v4l2_rect *crop,
 	win->chromakey = new_win->chromakey;
 
 	/* Adjust the cropping window to allow for resizing limitation */
-	if (cpu_is_omap24xx()) {
+	if (omap_vout_dss_omap24xx()) {
 		/* For 24xx limit is 8x to 1/2x scaling. */
 		if ((crop->height/win->w.height) >= 2)
 			crop->height = win->w.height * 2;
@@ -140,7 +140,7 @@ int omap_vout_new_window(struct v4l2_rect *crop,
 			if (crop->height != win->w.height)
 				crop->width = 768;
 		}
-	} else if (cpu_is_omap34xx()) {
+	} else if (omap_vout_dss_omap34xx()) {
 		/* For 34xx limit is 8x to 1/4x scaling. */
 		if ((crop->height/win->w.height) >= 4)
 			crop->height = win->w.height * 4;
@@ -196,7 +196,7 @@ int omap_vout_new_crop(struct v4l2_pix_format *pix,
 	if (try_crop.width <= 0 || try_crop.height <= 0)
 		return -EINVAL;
 
-	if (cpu_is_omap24xx()) {
+	if (omap_vout_dss_omap24xx()) {
 		if (try_crop.height != win->w.height) {
 			/* If we're resizing vertically, we can't support a
 			 * crop width wider than 768 pixels.
@@ -207,9 +207,9 @@ int omap_vout_new_crop(struct v4l2_pix_format *pix,
 	}
 	/* vertical resizing */
 	vresize = (1024 * try_crop.height) / win->w.height;
-	if (cpu_is_omap24xx() && (vresize > 2048))
+	if (omap_vout_dss_omap24xx() && (vresize > 2048))
 		vresize = 2048;
-	else if (cpu_is_omap34xx() && (vresize > 4096))
+	else if (omap_vout_dss_omap34xx() && (vresize > 4096))
 		vresize = 4096;
 
 	win->w.height = ((1024 * try_crop.height) / vresize) & ~1;
@@ -226,9 +226,9 @@ int omap_vout_new_crop(struct v4l2_pix_format *pix,
 	}
 	/* horizontal resizing */
 	hresize = (1024 * try_crop.width) / win->w.width;
-	if (cpu_is_omap24xx() && (hresize > 2048))
+	if (omap_vout_dss_omap24xx() && (hresize > 2048))
 		hresize = 2048;
-	else if (cpu_is_omap34xx() && (hresize > 4096))
+	else if (omap_vout_dss_omap34xx() && (hresize > 4096))
 		hresize = 4096;
 
 	win->w.width = ((1024 * try_crop.width) / hresize) & ~1;
@@ -243,7 +243,7 @@ int omap_vout_new_crop(struct v4l2_pix_format *pix,
 		if (try_crop.width == 0)
 			try_crop.width = 2;
 	}
-	if (cpu_is_omap24xx()) {
+	if (omap_vout_dss_omap24xx()) {
 		if ((try_crop.height/win->w.height) >= 2)
 			try_crop.height = win->w.height * 2;
 
@@ -258,7 +258,7 @@ int omap_vout_new_crop(struct v4l2_pix_format *pix,
 			if (try_crop.height != win->w.height)
 				try_crop.width = 768;
 		}
-	} else if (cpu_is_omap34xx()) {
+	} else if (omap_vout_dss_omap34xx()) {
 		if ((try_crop.height/win->w.height) >= 4)
 			try_crop.height = win->w.height * 4;
 
@@ -337,3 +337,21 @@ void omap_vout_free_buffer(unsigned long virtaddr, u32 buf_size)
 	}
 	free_pages((unsigned long) virtaddr, order);
 }
+
+bool omap_vout_dss_omap24xx(void)
+{
+	return omapdss_get_version() == OMAPDSS_VER_OMAP24xx;
+}
+
+bool omap_vout_dss_omap34xx(void)
+{
+	switch (omapdss_get_version()) {
+	case OMAPDSS_VER_OMAP34xx_ES1:
+	case OMAPDSS_VER_OMAP34xx_ES3:
+	case OMAPDSS_VER_OMAP3630:
+	case OMAPDSS_VER_AM35xx:
+		return true;
+	default:
+		return false;
+	}
+}
diff --git a/drivers/media/platform/omap/omap_voutlib.h b/drivers/media/platform/omap/omap_voutlib.h
index e51750a597e..f9d1c0779f3 100644
--- a/drivers/media/platform/omap/omap_voutlib.h
+++ b/drivers/media/platform/omap/omap_voutlib.h
@@ -32,5 +32,8 @@ void omap_vout_new_format(struct v4l2_pix_format *pix,
 		struct v4l2_window *win);
 unsigned long omap_vout_alloc_buffer(u32 buf_size, u32 *phys_addr);
 void omap_vout_free_buffer(unsigned long virtaddr, u32 buf_size);
+
+bool omap_vout_dss_omap24xx(void);
+bool omap_vout_dss_omap34xx(void);
 #endif	/* #ifndef OMAP_VOUTLIB_H */
 
-- 
cgit v1.2.3


From 29aaf90c68baccfa2efc81137caa675db450c1da Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 12 Nov 2012 15:24:02 +0200
Subject: [media] omap_vout: remove extra include

Remove including plat/dma.h which is not needed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/platform/omap/omap_vout.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
index 7b1afc8585c..a2cc634eb42 100644
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -44,7 +44,6 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
 
-#include <plat/dma.h>
 #include <video/omapvrfb.h>
 #include <video/omapdss.h>
 
-- 
cgit v1.2.3


From c252ea0f75536a55c13ed6d276af5e93cd41ac44 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Fri, 30 Nov 2012 12:30:45 +0800
Subject: OMAPDSS: Add terminating entry for picodlp_i2c_id table

The i2c_device_id table is supposed to be zero-terminated.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/panel-picodlp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/omap2/displays/panel-picodlp.c b/drivers/video/omap2/displays/panel-picodlp.c
index e3a6c199613..1b94018aac3 100644
--- a/drivers/video/omap2/displays/panel-picodlp.c
+++ b/drivers/video/omap2/displays/panel-picodlp.c
@@ -50,6 +50,7 @@ struct picodlp_i2c_data {
 
 static struct i2c_device_id picodlp_i2c_id[] = {
 	{ "picodlp_i2c_driver", 0 },
+	{ }
 };
 
 struct picodlp_i2c_command {
-- 
cgit v1.2.3


From 09645d258334c650cb65a93f55d9acdcd4420d44 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 4 Dec 2012 14:20:11 +0200
Subject: OMAPFB: remove exported udpate window

omapfb contains an exported omapfb_update_window function, which, at
some point in history, was used by a closed source SGX driver. This was
a hack even then, and should not be needed anymore. So remove it.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-ioctl.c | 27 +++------------------------
 drivers/video/omap2/omapfb/omapfb.h       |  3 ---
 2 files changed, 3 insertions(+), 27 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 8b1e9e375f0..94de47ea71a 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -279,7 +279,7 @@ static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 	return 0;
 }
 
-static int omapfb_update_window_nolock(struct fb_info *fbi,
+static int omapfb_update_window(struct fb_info *fbi,
 		u32 x, u32 y, u32 w, u32 h)
 {
 	struct omap_dss_device *display = fb2display(fbi);
@@ -299,27 +299,6 @@ static int omapfb_update_window_nolock(struct fb_info *fbi,
 	return display->driver->update(display, x, y, w, h);
 }
 
-/* This function is exported for SGX driver use */
-int omapfb_update_window(struct fb_info *fbi,
-		u32 x, u32 y, u32 w, u32 h)
-{
-	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
-	int r;
-
-	if (!lock_fb_info(fbi))
-		return -ENODEV;
-	omapfb_lock(fbdev);
-
-	r = omapfb_update_window_nolock(fbi, x, y, w, h);
-
-	omapfb_unlock(fbdev);
-	unlock_fb_info(fbi);
-
-	return r;
-}
-EXPORT_SYMBOL(omapfb_update_window);
-
 int omapfb_set_update_mode(struct fb_info *fbi,
 				   enum omapfb_update_mode mode)
 {
@@ -646,7 +625,7 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 			break;
 		}
 
-		r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
+		r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
 				p.uwnd_o.width, p.uwnd_o.height);
 		break;
 
@@ -663,7 +642,7 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 			break;
 		}
 
-		r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
+		r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
 				p.uwnd.width, p.uwnd.height);
 		break;
 
diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h
index 5f72bf9017f..b93086f4306 100644
--- a/drivers/video/omap2/omapfb/omapfb.h
+++ b/drivers/video/omap2/omapfb/omapfb.h
@@ -129,9 +129,6 @@ void omapfb_remove_sysfs(struct omapfb2_device *fbdev);
 
 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg);
 
-int omapfb_update_window(struct fb_info *fbi,
-		u32 x, u32 y, u32 w, u32 h);
-
 int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
 			struct fb_var_screeninfo *var);
 
-- 
cgit v1.2.3


From 636f4e1b45c6204c6912cefa2bdbe22e00784a43 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 7 Dec 2012 16:47:28 +0200
Subject: OMAPFB: move dssdev->sync call out from omapfb_realloc_fbmem

Currently omapfb_realloc_fbmem() calls dssdev->sync to ensure any
possible frame update is finished. This patch moves the call to
dssdev->sync from omapfb_realloc_fbmem to the callers of
omapfb_realloc_fbmem.

This keeps dssdev related calls out from omapfb_realloc_fbmem, which
makes sense as the function should only deal with fb memory. Also, this
seems to avoid a lockdep warning about possible circular locking.
However, the exact reason for that warning is still unclear.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-ioctl.c | 4 ++++
 drivers/video/omap2/omapfb/omapfb-main.c  | 4 ----
 drivers/video/omap2/omapfb/omapfb-sysfs.c | 4 ++++
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 94de47ea71a..d30b45d7264 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -211,6 +211,7 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
 	struct omapfb2_device *fbdev = ofbi->fbdev;
+	struct omap_dss_device *display = fb2display(fbi);
 	struct omapfb2_mem_region *rg;
 	int r = 0, i;
 	size_t size;
@@ -220,6 +221,9 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 
 	size = PAGE_ALIGN(mi->size);
 
+	if (display && display->driver->sync)
+		display->driver->sync(display);
+
 	rg = ofbi->region;
 
 	down_write_nested(&rg->lock, rg->id);
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 1a69d7ca92e..85130fa7ae5 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -1611,7 +1611,6 @@ int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
 	struct omapfb2_device *fbdev = ofbi->fbdev;
-	struct omap_dss_device *display = fb2display(fbi);
 	struct omapfb2_mem_region *rg = ofbi->region;
 	unsigned long old_size = rg->size;
 	unsigned long old_paddr = rg->paddr;
@@ -1626,9 +1625,6 @@ int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
 	if (old_size == size && old_type == type)
 		return 0;
 
-	if (display && display->driver->sync)
-			display->driver->sync(display);
-
 	omapfb_free_fbmem(fbi);
 
 	if (size == 0) {
diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c
index 17aa174e187..18fa9e1d003 100644
--- a/drivers/video/omap2/omapfb/omapfb-sysfs.c
+++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c
@@ -441,6 +441,7 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
 	struct omapfb2_device *fbdev = ofbi->fbdev;
+	struct omap_dss_device *display = fb2display(fbi);
 	struct omapfb2_mem_region *rg;
 	unsigned long size;
 	int r;
@@ -455,6 +456,9 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
 
+	if (display && display->driver->sync)
+		display->driver->sync(display);
+
 	rg = ofbi->region;
 
 	down_write_nested(&rg->lock, rg->id);
-- 
cgit v1.2.3


From b41deecbda70067b26a3a7704fdf967a7940935b Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 4 Dec 2012 14:55:18 +0200
Subject: OMAPFB: simplify locking
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Kernel lock verification code has lately detected possible circular
locking in omapfb. The exact problem is unclear, but omapfb's current
locking seems to be overly complex.

This patch simplifies the locking in the following ways:

- Remove explicit omapfb mem region locking. I couldn't figure out the
  need for this, as long as we take care to take omapfb lock.

- Get omapfb lock always, even if the operation is possibly only related
  to one fb_info. Better safe than sorry, and normally there's only one
  user for the fb so this shouldn't matter.

- Make sure fb_info lock is taken first, then omapfb lock.

With this patch the warnings about possible circular locking does not
happen anymore.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/video/omap2/omapfb/omapfb-ioctl.c | 68 ++++--------------------
 drivers/video/omap2/omapfb/omapfb-main.c  | 40 ++++----------
 drivers/video/omap2/omapfb/omapfb-sysfs.c | 87 +++++++++++++++++++++----------
 drivers/video/omap2/omapfb/omapfb.h       | 16 ------
 4 files changed, 79 insertions(+), 132 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index d30b45d7264..dccb158b0d0 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -85,16 +85,6 @@ static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 		goto out;
 	}
 
-	/* Take the locks in a specific order to keep lockdep happy */
-	if (old_rg->id < new_rg->id) {
-		omapfb_get_mem_region(old_rg);
-		omapfb_get_mem_region(new_rg);
-	} else if (new_rg->id < old_rg->id) {
-		omapfb_get_mem_region(new_rg);
-		omapfb_get_mem_region(old_rg);
-	} else
-		omapfb_get_mem_region(old_rg);
-
 	if (pi->enabled && !new_rg->size) {
 		/*
 		 * This plane's memory was freed, can't enable it
@@ -146,16 +136,6 @@ static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 			goto undo;
 	}
 
-	/* Release the locks in a specific order to keep lockdep happy */
-	if (old_rg->id > new_rg->id) {
-		omapfb_put_mem_region(old_rg);
-		omapfb_put_mem_region(new_rg);
-	} else if (new_rg->id > old_rg->id) {
-		omapfb_put_mem_region(new_rg);
-		omapfb_put_mem_region(old_rg);
-	} else
-		omapfb_put_mem_region(old_rg);
-
 	return 0;
 
  undo:
@@ -166,15 +146,6 @@ static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 
 	ovl->set_overlay_info(ovl, &old_info);
  put_mem:
-	/* Release the locks in a specific order to keep lockdep happy */
-	if (old_rg->id > new_rg->id) {
-		omapfb_put_mem_region(old_rg);
-		omapfb_put_mem_region(new_rg);
-	} else if (new_rg->id > old_rg->id) {
-		omapfb_put_mem_region(new_rg);
-		omapfb_put_mem_region(old_rg);
-	} else
-		omapfb_put_mem_region(old_rg);
  out:
 	dev_err(fbdev->dev, "setup_plane failed\n");
 
@@ -224,10 +195,9 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 	if (display && display->driver->sync)
 		display->driver->sync(display);
 
-	rg = ofbi->region;
+	mutex_lock(&fbi->mm_lock);
 
-	down_write_nested(&rg->lock, rg->id);
-	atomic_inc(&rg->lock_count);
+	rg = ofbi->region;
 
 	if (rg->size == size && rg->type == mi->type)
 		goto out;
@@ -261,9 +231,7 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 	}
 
  out:
-	atomic_dec(&rg->lock_count);
-	up_write(&rg->lock);
-
+	mutex_unlock(&fbi->mm_lock);
 	return r;
 }
 
@@ -272,14 +240,12 @@ static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 	struct omapfb_info *ofbi = FB2OFB(fbi);
 	struct omapfb2_mem_region *rg;
 
-	rg = omapfb_get_mem_region(ofbi->region);
+	rg = ofbi->region;
 	memset(mi, 0, sizeof(*mi));
 
 	mi->size = rg->size;
 	mi->type = rg->type;
 
-	omapfb_put_mem_region(rg);
-
 	return 0;
 }
 
@@ -318,14 +284,10 @@ int omapfb_set_update_mode(struct fb_info *fbi,
 	if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
 		return -EINVAL;
 
-	omapfb_lock(fbdev);
-
 	d = get_display_data(fbdev, display);
 
-	if (d->update_mode == mode) {
-		omapfb_unlock(fbdev);
+	if (d->update_mode == mode)
 		return 0;
-	}
 
 	r = 0;
 
@@ -341,8 +303,6 @@ int omapfb_set_update_mode(struct fb_info *fbi,
 			r = -EINVAL;
 	}
 
-	omapfb_unlock(fbdev);
-
 	return r;
 }
 
@@ -357,14 +317,10 @@ int omapfb_get_update_mode(struct fb_info *fbi,
 	if (!display)
 		return -EINVAL;
 
-	omapfb_lock(fbdev);
-
 	d = get_display_data(fbdev, display);
 
 	*mode = d->update_mode;
 
-	omapfb_unlock(fbdev);
-
 	return 0;
 }
 
@@ -424,13 +380,10 @@ static int omapfb_set_color_key(struct fb_info *fbi,
 		struct omapfb_color_key *ck)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	int r;
 	int i;
 	struct omap_overlay_manager *mgr = NULL;
 
-	omapfb_lock(fbdev);
-
 	for (i = 0; i < ofbi->num_overlays; i++) {
 		if (ofbi->overlays[i]->manager) {
 			mgr = ofbi->overlays[i]->manager;
@@ -445,8 +398,6 @@ static int omapfb_set_color_key(struct fb_info *fbi,
 
 	r = _omapfb_set_color_key(mgr, ck);
 err:
-	omapfb_unlock(fbdev);
-
 	return r;
 }
 
@@ -454,13 +405,10 @@ static int omapfb_get_color_key(struct fb_info *fbi,
 		struct omapfb_color_key *ck)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	struct omap_overlay_manager *mgr = NULL;
 	int r = 0;
 	int i;
 
-	omapfb_lock(fbdev);
-
 	for (i = 0; i < ofbi->num_overlays; i++) {
 		if (ofbi->overlays[i]->manager) {
 			mgr = ofbi->overlays[i]->manager;
@@ -475,8 +423,6 @@ static int omapfb_get_color_key(struct fb_info *fbi,
 
 	*ck = omapfb_color_keys[mgr->id];
 err:
-	omapfb_unlock(fbdev);
-
 	return r;
 }
 
@@ -603,6 +549,8 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 
 	int r = 0;
 
+	omapfb_lock(fbdev);
+
 	switch (cmd) {
 	case OMAPFB_SYNC_GFX:
 		DBG("ioctl SYNC_GFX\n");
@@ -908,6 +856,8 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 		r = -EINVAL;
 	}
 
+	omapfb_unlock(fbdev);
+
 	if (r < 0)
 		DBG("ioctl failed: %d\n", r);
 
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 85130fa7ae5..708f2cf9020 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -672,8 +672,6 @@ int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
 
 	DBG("check_fb_var %d\n", ofbi->id);
 
-	WARN_ON(!atomic_read(&ofbi->region->lock_count));
-
 	r = fb_mode_to_dss_mode(var, &mode);
 	if (r) {
 		DBG("cannot convert var to omap dss mode\n");
@@ -855,8 +853,6 @@ int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
 	int rotation = var->rotate;
 	int i;
 
-	WARN_ON(!atomic_read(&ofbi->region->lock_count));
-
 	for (i = 0; i < ofbi->num_overlays; i++) {
 		if (ovl != ofbi->overlays[i])
 			continue;
@@ -948,8 +944,6 @@ int omapfb_apply_changes(struct fb_info *fbi, int init)
 		fill_fb(fbi);
 #endif
 
-	WARN_ON(!atomic_read(&ofbi->region->lock_count));
-
 	for (i = 0; i < ofbi->num_overlays; i++) {
 		ovl = ofbi->overlays[i];
 
@@ -1008,15 +1002,16 @@ err:
 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	int r;
 
 	DBG("check_var(%d)\n", FB2OFB(fbi)->id);
 
-	omapfb_get_mem_region(ofbi->region);
+	omapfb_lock(fbdev);
 
 	r = check_fb_var(fbi, var);
 
-	omapfb_put_mem_region(ofbi->region);
+	omapfb_unlock(fbdev);
 
 	return r;
 }
@@ -1025,11 +1020,12 @@ static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
 static int omapfb_set_par(struct fb_info *fbi)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	int r;
 
 	DBG("set_par(%d)\n", FB2OFB(fbi)->id);
 
-	omapfb_get_mem_region(ofbi->region);
+	omapfb_lock(fbdev);
 
 	set_fb_fix(fbi);
 
@@ -1040,7 +1036,7 @@ static int omapfb_set_par(struct fb_info *fbi)
 	r = omapfb_apply_changes(fbi, 0);
 
  out:
-	omapfb_put_mem_region(ofbi->region);
+	omapfb_unlock(fbdev);
 
 	return r;
 }
@@ -1049,6 +1045,7 @@ static int omapfb_pan_display(struct fb_var_screeninfo *var,
 		struct fb_info *fbi)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	struct fb_var_screeninfo new_var;
 	int r;
 
@@ -1064,11 +1061,11 @@ static int omapfb_pan_display(struct fb_var_screeninfo *var,
 
 	fbi->var = new_var;
 
-	omapfb_get_mem_region(ofbi->region);
+	omapfb_lock(fbdev);
 
 	r = omapfb_apply_changes(fbi, 0);
 
-	omapfb_put_mem_region(ofbi->region);
+	omapfb_unlock(fbdev);
 
 	return r;
 }
@@ -1077,18 +1074,14 @@ static void mmap_user_open(struct vm_area_struct *vma)
 {
 	struct omapfb2_mem_region *rg = vma->vm_private_data;
 
-	omapfb_get_mem_region(rg);
 	atomic_inc(&rg->map_count);
-	omapfb_put_mem_region(rg);
 }
 
 static void mmap_user_close(struct vm_area_struct *vma)
 {
 	struct omapfb2_mem_region *rg = vma->vm_private_data;
 
-	omapfb_get_mem_region(rg);
 	atomic_dec(&rg->map_count);
-	omapfb_put_mem_region(rg);
 }
 
 static struct vm_operations_struct mmap_user_ops = {
@@ -1112,7 +1105,7 @@ static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
 		return -EINVAL;
 	off = vma->vm_pgoff << PAGE_SHIFT;
 
-	rg = omapfb_get_mem_region(ofbi->region);
+	rg = ofbi->region;
 
 	start = omapfb_get_region_paddr(ofbi);
 	len = fix->smem_len;
@@ -1140,13 +1133,9 @@ static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
 	/* vm_ops.open won't be called for mmap itself. */
 	atomic_inc(&rg->map_count);
 
-	omapfb_put_mem_region(rg);
-
 	return 0;
 
  error:
-	omapfb_put_mem_region(ofbi->region);
-
 	return r;
 }
 
@@ -1914,7 +1903,6 @@ static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
 
 		ofbi->region = &fbdev->regions[i];
 		ofbi->region->id = i;
-		init_rwsem(&ofbi->region->lock);
 
 		/* assign these early, so that fb alloc can use them */
 		ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB :
@@ -1946,12 +1934,8 @@ static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
 	/* setup fb_infos */
 	for (i = 0; i < fbdev->num_fbs; i++) {
 		struct fb_info *fbi = fbdev->fbs[i];
-		struct omapfb_info *ofbi = FB2OFB(fbi);
 
-		omapfb_get_mem_region(ofbi->region);
 		r = omapfb_fb_init(fbdev, fbi);
-		omapfb_put_mem_region(ofbi->region);
-
 		if (r) {
 			dev_err(fbdev->dev, "failed to setup fb_info\n");
 			return r;
@@ -1983,12 +1967,8 @@ static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
 
 	for (i = 0; i < fbdev->num_fbs; i++) {
 		struct fb_info *fbi = fbdev->fbs[i];
-		struct omapfb_info *ofbi = FB2OFB(fbi);
 
-		omapfb_get_mem_region(ofbi->region);
 		r = omapfb_apply_changes(fbi, 1);
-		omapfb_put_mem_region(ofbi->region);
-
 		if (r) {
 			dev_err(fbdev->dev, "failed to change mode\n");
 			return r;
diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c
index 18fa9e1d003..be5eb074b7d 100644
--- a/drivers/video/omap2/omapfb/omapfb-sysfs.c
+++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c
@@ -49,6 +49,7 @@ static ssize_t store_rotate_type(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	struct omapfb2_mem_region *rg;
 	int rot_type;
 	int r;
@@ -62,12 +63,13 @@ static ssize_t store_rotate_type(struct device *dev,
 
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
+	omapfb_lock(fbdev);
 
 	r = 0;
 	if (rot_type == ofbi->rotation_type)
 		goto out;
 
-	rg = omapfb_get_mem_region(ofbi->region);
+	rg = ofbi->region;
 
 	if (rg->size) {
 		r = -EBUSY;
@@ -81,8 +83,8 @@ static ssize_t store_rotate_type(struct device *dev,
 	 * need to do any further parameter checking at this point.
 	 */
 put_region:
-	omapfb_put_mem_region(rg);
 out:
+	omapfb_unlock(fbdev);
 	unlock_fb_info(fbi);
 
 	return r ? r : count;
@@ -104,6 +106,7 @@ static ssize_t store_mirror(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	bool mirror;
 	int r;
 	struct fb_var_screeninfo new_var;
@@ -114,11 +117,10 @@ static ssize_t store_mirror(struct device *dev,
 
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
+	omapfb_lock(fbdev);
 
 	ofbi->mirror = mirror;
 
-	omapfb_get_mem_region(ofbi->region);
-
 	memcpy(&new_var, &fbi->var, sizeof(new_var));
 	r = check_fb_var(fbi, &new_var);
 	if (r)
@@ -133,8 +135,7 @@ static ssize_t store_mirror(struct device *dev,
 
 	r = count;
 out:
-	omapfb_put_mem_region(ofbi->region);
-
+	omapfb_unlock(fbdev);
 	unlock_fb_info(fbi);
 
 	return r;
@@ -273,15 +274,11 @@ static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
 
 		DBG("detaching %d\n", ofbi->overlays[i]->id);
 
-		omapfb_get_mem_region(ofbi->region);
-
 		omapfb_overlay_enable(ovl, 0);
 
 		if (ovl->manager)
 			ovl->manager->apply(ovl->manager);
 
-		omapfb_put_mem_region(ofbi->region);
-
 		for (t = i + 1; t < ofbi->num_overlays; t++) {
 			ofbi->rotation[t-1] = ofbi->rotation[t];
 			ofbi->overlays[t-1] = ofbi->overlays[t];
@@ -314,12 +311,8 @@ static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
 	}
 
 	if (added) {
-		omapfb_get_mem_region(ofbi->region);
-
 		r = omapfb_apply_changes(fbi, 0);
 
-		omapfb_put_mem_region(ofbi->region);
-
 		if (r)
 			goto out;
 	}
@@ -337,11 +330,13 @@ static ssize_t show_overlays_rotate(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	ssize_t l = 0;
 	int t;
 
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
+	omapfb_lock(fbdev);
 
 	for (t = 0; t < ofbi->num_overlays; t++) {
 		l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
@@ -350,6 +345,7 @@ static ssize_t show_overlays_rotate(struct device *dev,
 
 	l += snprintf(buf + l, PAGE_SIZE - l, "\n");
 
+	omapfb_unlock(fbdev);
 	unlock_fb_info(fbi);
 
 	return l;
@@ -360,6 +356,7 @@ static ssize_t store_overlays_rotate(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	int num_ovls = 0, r, i;
 	int len;
 	bool changed = false;
@@ -371,6 +368,7 @@ static ssize_t store_overlays_rotate(struct device *dev,
 
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
+	omapfb_lock(fbdev);
 
 	if (len > 0) {
 		char *p = (char *)buf;
@@ -407,12 +405,7 @@ static ssize_t store_overlays_rotate(struct device *dev,
 		for (i = 0; i < num_ovls; ++i)
 			ofbi->rotation[i] = rotation[i];
 
-		omapfb_get_mem_region(ofbi->region);
-
 		r = omapfb_apply_changes(fbi, 0);
-
-		omapfb_put_mem_region(ofbi->region);
-
 		if (r)
 			goto out;
 
@@ -421,6 +414,7 @@ static ssize_t store_overlays_rotate(struct device *dev,
 
 	r = count;
 out:
+	omapfb_unlock(fbdev);
 	unlock_fb_info(fbi);
 
 	return r;
@@ -431,8 +425,19 @@ static ssize_t show_size(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	int r;
 
-	return snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region->size);
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+	omapfb_lock(fbdev);
+
+	r = snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region->size);
+
+	omapfb_unlock(fbdev);
+	unlock_fb_info(fbi);
+
+	return r;
 }
 
 static ssize_t store_size(struct device *dev, struct device_attribute *attr,
@@ -455,14 +460,14 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
 
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
+	omapfb_lock(fbdev);
 
 	if (display && display->driver->sync)
 		display->driver->sync(display);
 
-	rg = ofbi->region;
+	mutex_lock(&fbi->mm_lock);
 
-	down_write_nested(&rg->lock, rg->id);
-	atomic_inc(&rg->lock_count);
+	rg = ofbi->region;
 
 	if (atomic_read(&rg->map_count)) {
 		r = -EBUSY;
@@ -496,9 +501,8 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
 
 	r = count;
 out:
-	atomic_dec(&rg->lock_count);
-	up_write(&rg->lock);
-
+	mutex_unlock(&fbi->mm_lock);
+	omapfb_unlock(fbdev);
 	unlock_fb_info(fbi);
 
 	return r;
@@ -509,8 +513,19 @@ static ssize_t show_phys(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	int r;
 
-	return snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region->paddr);
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+	omapfb_lock(fbdev);
+
+	r = snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region->paddr);
+
+	omapfb_unlock(fbdev);
+	unlock_fb_info(fbi);
+
+	return r;
 }
 
 static ssize_t show_virt(struct device *dev,
@@ -526,11 +541,20 @@ static ssize_t show_upd_mode(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	enum omapfb_update_mode mode;
 	int r;
 
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+	omapfb_lock(fbdev);
+
 	r = omapfb_get_update_mode(fbi, &mode);
 
+	omapfb_unlock(fbdev);
+	unlock_fb_info(fbi);
+
 	if (r)
 		return r;
 
@@ -541,6 +565,8 @@ static ssize_t store_upd_mode(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	unsigned mode;
 	int r;
 
@@ -548,10 +574,17 @@ static ssize_t store_upd_mode(struct device *dev, struct device_attribute *attr,
 	if (r)
 		return r;
 
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+	omapfb_lock(fbdev);
+
 	r = omapfb_set_update_mode(fbi, mode);
 	if (r)
 		return r;
 
+	omapfb_unlock(fbdev);
+	unlock_fb_info(fbi);
+
 	return count;
 }
 
diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h
index b93086f4306..71cd8bab31c 100644
--- a/drivers/video/omap2/omapfb/omapfb.h
+++ b/drivers/video/omap2/omapfb/omapfb.h
@@ -62,8 +62,6 @@ struct omapfb2_mem_region {
 	bool		alloc;		/* allocated by the driver */
 	bool		map;		/* kernel mapped by the driver */
 	atomic_t	map_count;
-	struct rw_semaphore lock;
-	atomic_t	lock_count;
 };
 
 /* appended to fb_info */
@@ -191,18 +189,4 @@ static inline int omapfb_overlay_enable(struct omap_overlay *ovl,
 		return ovl->disable(ovl);
 }
 
-static inline struct omapfb2_mem_region *
-omapfb_get_mem_region(struct omapfb2_mem_region *rg)
-{
-	down_read_nested(&rg->lock, rg->id);
-	atomic_inc(&rg->lock_count);
-	return rg;
-}
-
-static inline void omapfb_put_mem_region(struct omapfb2_mem_region *rg)
-{
-	atomic_dec(&rg->lock_count);
-	up_read(&rg->lock);
-}
-
 #endif
-- 
cgit v1.2.3


From 09a8c45cbb872f5e861c4385d6967d0aa7f637f1 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 4 Dec 2012 16:26:09 +0200
Subject: OMAPFB: remove warning when trying to alloc at certain paddress

omapfb gives a WARN_ONCE if a predefined physical address is given for
allocating the framebuffer memory, as this is not currently supported.

However, the same warning happens if omapfb fails to allocate memory
during runtime, as when the allocation has failed, omapfb tries to
re-allocate the old memory with the physical address of the old memory
area.

Remove the warning from omapfb_alloc_fbmem, as it serves no purpose on
the failure case above, and move it to omapfb_parse_vram_param, so that
we only warn if physical address is given via omapfb module parameters.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 708f2cf9020..c2dbfb832a0 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -1391,9 +1391,6 @@ static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
 
 	size = PAGE_ALIGN(size);
 
-	WARN_ONCE(paddr,
-		"reserving memory at predefined address not supported\n");
-
 	dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
 
 	if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
@@ -1521,6 +1518,9 @@ static int omapfb_parse_vram_param(const char *param, int max_entries,
 
 		}
 
+		WARN_ONCE(paddr,
+			"reserving memory at predefined address not supported\n");
+
 		paddrs[fbnum] = paddr;
 		sizes[fbnum] = size;
 
-- 
cgit v1.2.3


From 486c0e17b7d1a4f8f057a97f2e48f715208f950d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 7 Dec 2012 12:50:08 +0200
Subject: OMAPDSS: manage output-dssdev connection in output drivers

We currently attach an output to a dssdev in the initialization code for
dssdevices in display.c. This works, but doesn't quite make sense: an
output entity represents (surprisingly) an output of DSS, which is
managed by an output driver. The output driver also handles adding new
dssdev's for that particular output.

It makes more sense to make the output-dssdev connection in the output
driver. This is also in line with common display framework.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/display.c | 12 ------------
 drivers/video/omap2/dss/dpi.c     |  9 +++++++++
 drivers/video/omap2/dss/dsi.c     | 10 ++++++++++
 drivers/video/omap2/dss/dss.h     |  1 -
 drivers/video/omap2/dss/hdmi.c    |  9 +++++++++
 drivers/video/omap2/dss/output.c  | 33 ---------------------------------
 drivers/video/omap2/dss/rfbi.c    |  9 +++++++++
 drivers/video/omap2/dss/sdi.c     |  9 +++++++++
 drivers/video/omap2/dss/venc.c    |  9 +++++++++
 9 files changed, 55 insertions(+), 46 deletions(-)

diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index 008e9eecaf7..05f21b6231b 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -79,17 +79,8 @@ EXPORT_SYMBOL(omapdss_default_get_timings);
 int dss_init_device(struct platform_device *pdev,
 		struct omap_dss_device *dssdev)
 {
-	struct omap_dss_output *out;
 	int r;
 
-	out = omapdss_get_output_from_dssdev(dssdev);
-
-	r = omapdss_output_set_device(out, dssdev);
-	if (r) {
-		DSSERR("failed to connect output to new device\n");
-		return r;
-	}
-
 	r = display_init_sysfs(pdev, dssdev);
 	if (r) {
 		omapdss_output_unset_device(dssdev->output);
@@ -103,9 +94,6 @@ void dss_uninit_device(struct platform_device *pdev,
 		struct omap_dss_device *dssdev)
 {
 	display_uninit_sysfs(pdev, dssdev);
-
-	if (dssdev->output)
-		omapdss_output_unset_device(dssdev->output);
 }
 
 static int dss_suspend_device(struct device *dev, void *data)
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index c109fa68c01..d5bc47a4f3e 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -477,9 +477,18 @@ static void __init dpi_probe_pdata(struct platform_device *dpidev)
 		return;
 	}
 
+	r = omapdss_output_set_device(&dpi.output, dssdev);
+	if (r) {
+		DSSERR("failed to connect output to new device: %s\n",
+				dssdev->name);
+		dss_put_device(dssdev);
+		return;
+	}
+
 	r = dss_add_device(dssdev);
 	if (r) {
 		DSSERR("device %s register failed: %d\n", dssdev->name, r);
+		omapdss_output_unset_device(&dpi.output);
 		dss_put_device(dssdev);
 		return;
 	}
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index cf32dc7e70f..db9663dcfbd 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -5146,6 +5146,7 @@ static struct omap_dss_device * __init dsi_find_dssdev(struct platform_device *p
 
 static void __init dsi_probe_pdata(struct platform_device *dsidev)
 {
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	struct omap_dss_device *plat_dssdev;
 	struct omap_dss_device *dssdev;
 	int r;
@@ -5168,9 +5169,18 @@ static void __init dsi_probe_pdata(struct platform_device *dsidev)
 		return;
 	}
 
+	r = omapdss_output_set_device(&dsi->output, dssdev);
+	if (r) {
+		DSSERR("failed to connect output to new device: %s\n",
+				dssdev->name);
+		dss_put_device(dssdev);
+		return;
+	}
+
 	r = dss_add_device(dssdev);
 	if (r) {
 		DSSERR("device %s register failed: %d\n", dssdev->name, r);
+		omapdss_output_unset_device(&dsi->output);
 		dss_put_device(dssdev);
 		return;
 	}
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 4d6f325cee8..bdf84313566 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -212,7 +212,6 @@ int dss_ovl_unset_manager(struct omap_overlay *ovl);
 /* output */
 void dss_register_output(struct omap_dss_output *out);
 void dss_unregister_output(struct omap_dss_output *out);
-struct omap_dss_output *omapdss_get_output_from_dssdev(struct omap_dss_device *dssdev);
 
 /* display */
 int dss_suspend_all_devices(void);
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 24a2eefb7e8..769d0828581 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1026,9 +1026,18 @@ static void __init hdmi_probe_pdata(struct platform_device *pdev)
 		return;
 	}
 
+	r = omapdss_output_set_device(&hdmi.output, dssdev);
+	if (r) {
+		DSSERR("failed to connect output to new device: %s\n",
+				dssdev->name);
+		dss_put_device(dssdev);
+		return;
+	}
+
 	r = dss_add_device(dssdev);
 	if (r) {
 		DSSERR("device %s register failed: %d\n", dssdev->name, r);
+		omapdss_output_unset_device(&hdmi.output);
 		hdmi_uninit_display(dssdev);
 		dss_put_device(dssdev);
 		return;
diff --git a/drivers/video/omap2/dss/output.c b/drivers/video/omap2/dss/output.c
index 813f26682b7..1a84b79d558 100644
--- a/drivers/video/omap2/dss/output.c
+++ b/drivers/video/omap2/dss/output.c
@@ -113,36 +113,3 @@ struct omap_dss_output *omap_dss_get_output(enum omap_dss_output_id id)
 
 	return NULL;
 }
-
-struct omap_dss_output *omapdss_get_output_from_dssdev(struct omap_dss_device *dssdev)
-{
-	struct omap_dss_output *out = NULL;
-	enum omap_dss_output_id id;
-
-	switch (dssdev->type) {
-	case OMAP_DISPLAY_TYPE_DPI:
-		out = omap_dss_get_output(OMAP_DSS_OUTPUT_DPI);
-		break;
-	case OMAP_DISPLAY_TYPE_DBI:
-		out = omap_dss_get_output(OMAP_DSS_OUTPUT_DBI);
-		break;
-	case OMAP_DISPLAY_TYPE_SDI:
-		out = omap_dss_get_output(OMAP_DSS_OUTPUT_SDI);
-		break;
-	case OMAP_DISPLAY_TYPE_VENC:
-		out = omap_dss_get_output(OMAP_DSS_OUTPUT_VENC);
-		break;
-	case OMAP_DISPLAY_TYPE_HDMI:
-		out = omap_dss_get_output(OMAP_DSS_OUTPUT_HDMI);
-		break;
-	case OMAP_DISPLAY_TYPE_DSI:
-		id = dssdev->phy.dsi.module == 0 ? OMAP_DSS_OUTPUT_DSI1 :
-					OMAP_DSS_OUTPUT_DSI2;
-		out = omap_dss_get_output(id);
-		break;
-	default:
-		break;
-	}
-
-	return out;
-}
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 7bfeb13cf3d..ec9fde52716 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -999,9 +999,18 @@ static void __init rfbi_probe_pdata(struct platform_device *rfbidev)
 		return;
 	}
 
+	r = omapdss_output_set_device(&rfbi.output, dssdev);
+	if (r) {
+		DSSERR("failed to connect output to new device: %s\n",
+				dssdev->name);
+		dss_put_device(dssdev);
+		return;
+	}
+
 	r = dss_add_device(dssdev);
 	if (r) {
 		DSSERR("device %s register failed: %d\n", dssdev->name, r);
+		omapdss_output_unset_device(&rfbi.output);
 		dss_put_device(dssdev);
 		return;
 	}
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 882ce89765e..62b5374ce43 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -254,9 +254,18 @@ static void __init sdi_probe_pdata(struct platform_device *sdidev)
 		return;
 	}
 
+	r = omapdss_output_set_device(&sdi.output, dssdev);
+	if (r) {
+		DSSERR("failed to connect output to new device: %s\n",
+				dssdev->name);
+		dss_put_device(dssdev);
+		return;
+	}
+
 	r = dss_add_device(dssdev);
 	if (r) {
 		DSSERR("device %s register failed: %d\n", dssdev->name, r);
+		omapdss_output_unset_device(&sdi.output);
 		dss_put_device(dssdev);
 		return;
 	}
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index e8fddc9012c..006caf3cb50 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -795,9 +795,18 @@ static void __init venc_probe_pdata(struct platform_device *vencdev)
 		return;
 	}
 
+	r = omapdss_output_set_device(&venc.output, dssdev);
+	if (r) {
+		DSSERR("failed to connect output to new device: %s\n",
+				dssdev->name);
+		dss_put_device(dssdev);
+		return;
+	}
+
 	r = dss_add_device(dssdev);
 	if (r) {
 		DSSERR("device %s register failed: %d\n", dssdev->name, r);
+		omapdss_output_unset_device(&venc.output);
 		dss_put_device(dssdev);
 		return;
 	}
-- 
cgit v1.2.3


From 6b6f1edfdb6c41e630e4a70d64a8e8817b3170c2 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 4 Dec 2012 13:12:39 +0200
Subject: OMAPFB: connect ovl managers to all dssdevs

Commit 5d89bcc341771d95e3a2996218e5949a6627f59e (OMAPDSS: remove initial
display code from omapdss) moved setting up the initial overlay, overlay
manager, output and display connections from omapdss to omapfb.

However, currently omapfb only handles the connection related to the
default display, which means that no overlay managers are connected to
other displays.

This patch changes omapfb to go through all dssdevs, and connect an
overlay manager to them.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-main.c | 38 ++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 14 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index c2dbfb832a0..1f60741a788 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2349,27 +2349,37 @@ static int omapfb_init_display(struct omapfb2_device *fbdev,
 }
 
 static int omapfb_init_connections(struct omapfb2_device *fbdev,
-		struct omap_dss_device *dssdev)
+		struct omap_dss_device *def_dssdev)
 {
 	int i, r;
-	struct omap_overlay_manager *mgr = NULL;
+	struct omap_overlay_manager *mgr;
 
-	for (i = 0; i < fbdev->num_managers; i++) {
-		mgr = fbdev->managers[i];
-
-		if (dssdev->channel == mgr->id)
-			break;
+	if (!def_dssdev->output) {
+		dev_err(fbdev->dev, "no output for the default display\n");
+		return -EINVAL;
 	}
 
-	if (i == fbdev->num_managers)
-		return -ENODEV;
+	for (i = 0; i < fbdev->num_displays; ++i) {
+		struct omap_dss_device *dssdev = fbdev->displays[i].dssdev;
+		struct omap_dss_output *out = dssdev->output;
 
-	if (mgr->output)
-		mgr->unset_output(mgr);
+		mgr = omap_dss_get_overlay_manager(dssdev->channel);
 
-	r = mgr->set_output(mgr, dssdev->output);
-	if (r)
-		return r;
+		if (!mgr || !out)
+			continue;
+
+		if (mgr->output)
+			mgr->unset_output(mgr);
+
+		mgr->set_output(mgr, out);
+	}
+
+	mgr = def_dssdev->output->manager;
+
+	if (!mgr) {
+		dev_err(fbdev->dev, "no ovl manager for the default display\n");
+		return -EINVAL;
+	}
 
 	for (i = 0; i < fbdev->num_overlays; i++) {
 		struct omap_overlay *ovl = fbdev->overlays[i];
-- 
cgit v1.2.3


From 8dd2491a4216778a81668581041ba1c06453ed6c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 10:26:45 +0300
Subject: OMAPDSS: add omapdss_compat_init()

Add two new exported functions, omapdss_compat_init and
omapdss_compat_uninit, which are to be used by omapfb, omap_vout to
enable compatibility mode for omapdss. The functions are called by
omapdss internally for now, and moved to other drivers later.

The compatibility mode is implemented fully in the following patches.
For now, enabling compat mode only sets up the private data in apply.c.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 33 ++++++++++++++++++++++++++++++++-
 drivers/video/omap2/dss/core.c  |  4 +++-
 drivers/video/omap2/dss/dss.h   |  1 -
 include/video/omapdss.h         |  3 +++
 4 files changed, 38 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 4a5cc5c64d4..ba1343274bb 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -18,6 +18,7 @@
 #define DSS_SUBSYS_NAME "APPLY"
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/jiffies.h>
@@ -131,7 +132,7 @@ static struct mgr_priv_data *get_mgr_priv(struct omap_overlay_manager *mgr)
 	return &dss_data.mgr_priv_data_array[mgr->id];
 }
 
-void dss_apply_init(void)
+static void apply_init_priv(void)
 {
 	const int num_ovls = dss_feat_get_num_ovls();
 	struct mgr_priv_data *mp;
@@ -1463,3 +1464,33 @@ err:
 	return r;
 }
 
+static int compat_refcnt;
+static DEFINE_MUTEX(compat_init_lock);
+
+int omapdss_compat_init(void)
+{
+	mutex_lock(&compat_init_lock);
+
+	if (compat_refcnt++ > 0)
+		goto out;
+
+	apply_init_priv();
+
+out:
+	mutex_unlock(&compat_init_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL(omapdss_compat_init);
+
+void omapdss_compat_uninit(void)
+{
+	mutex_lock(&compat_init_lock);
+
+	if (--compat_refcnt > 0)
+		goto out;
+
+out:
+	mutex_unlock(&compat_init_lock);
+}
+EXPORT_SYMBOL(omapdss_compat_uninit);
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 5c5e5919058..86c743f5ed2 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -232,7 +232,7 @@ static int __init omap_dss_probe(struct platform_device *pdev)
 
 	dss_features_init(omapdss_get_version());
 
-	dss_apply_init();
+	omapdss_compat_init();
 
 	dss_init_overlay_managers(pdev);
 	dss_init_overlays(pdev);
@@ -264,6 +264,8 @@ static int omap_dss_remove(struct platform_device *pdev)
 	dss_uninit_overlays(pdev);
 	dss_uninit_overlay_managers(pdev);
 
+	omapdss_compat_uninit();
+
 	return 0;
 }
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index bdf84313566..9da3d61b8a5 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -178,7 +178,6 @@ void dss_copy_device_pdata(struct omap_dss_device *dst,
 		const struct omap_dss_device *src);
 
 /* apply */
-void dss_apply_init(void);
 int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr);
 int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
 void dss_mgr_start_update(struct omap_overlay_manager *mgr);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index b1248c2d36e..a9402362d81 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -836,4 +836,7 @@ void omapdss_rfbi_set_data_lines(struct omap_dss_device *dssdev,
 void omapdss_rfbi_set_interface_timings(struct omap_dss_device *dssdev,
 		struct rfbi_timings *timings);
 
+int omapdss_compat_init(void);
+void omapdss_compat_uninit(void);
+
 #endif
-- 
cgit v1.2.3


From 23dfd1ac87b56652e618fda24b035505c89c4b8c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 23 Oct 2012 13:46:12 +0300
Subject: OMAPDSS: move ovl & ovl-mgr init to apply.c

Overlay and overlay_manager structs will only be needed in the compat
mode.

This patch moves initialization of overlay and overlay_manager structs
to apply.c, so that they are handled in omapdss_compat_init().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 9 +++++++++
 drivers/video/omap2/dss/core.c  | 6 ------
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index ba1343274bb..6f60d0e0b7e 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -1469,6 +1469,8 @@ static DEFINE_MUTEX(compat_init_lock);
 
 int omapdss_compat_init(void)
 {
+	struct platform_device *pdev = dss_get_core_pdev();
+
 	mutex_lock(&compat_init_lock);
 
 	if (compat_refcnt++ > 0)
@@ -1476,6 +1478,9 @@ int omapdss_compat_init(void)
 
 	apply_init_priv();
 
+	dss_init_overlay_managers(pdev);
+	dss_init_overlays(pdev);
+
 out:
 	mutex_unlock(&compat_init_lock);
 
@@ -1485,11 +1490,15 @@ EXPORT_SYMBOL(omapdss_compat_init);
 
 void omapdss_compat_uninit(void)
 {
+	struct platform_device *pdev = dss_get_core_pdev();
+
 	mutex_lock(&compat_init_lock);
 
 	if (--compat_refcnt > 0)
 		goto out;
 
+	dss_uninit_overlay_managers(pdev);
+	dss_uninit_overlays(pdev);
 out:
 	mutex_unlock(&compat_init_lock);
 }
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 86c743f5ed2..1751c1f511a 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -234,9 +234,6 @@ static int __init omap_dss_probe(struct platform_device *pdev)
 
 	omapdss_compat_init();
 
-	dss_init_overlay_managers(pdev);
-	dss_init_overlays(pdev);
-
 	r = dss_initialize_debugfs();
 	if (r)
 		goto err_debugfs;
@@ -261,9 +258,6 @@ static int omap_dss_remove(struct platform_device *pdev)
 
 	dss_uninitialize_debugfs();
 
-	dss_uninit_overlays(pdev);
-	dss_uninit_overlay_managers(pdev);
-
 	omapdss_compat_uninit();
 
 	return 0;
-- 
cgit v1.2.3


From 0c49ff747a4656e24b8990764f5ee4cd047ee982 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 23 Oct 2012 13:44:12 +0300
Subject: OMAPDSS: move ovl-mgr function setup to apply.c

Most of the functions that are assigned to the fields in ovl-mgr struct
are in apply.c. By moving the function pointer setup into apply.c we can
make these functions static.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 58 +++++++++++++++++++++++++++++++++++----
 drivers/video/omap2/dss/dss.h     | 10 -------
 drivers/video/omap2/dss/manager.c | 39 --------------------------
 3 files changed, 52 insertions(+), 55 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 6f60d0e0b7e..98cebe30318 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -416,7 +416,37 @@ static void wait_pending_extra_info_updates(void)
 		DSSWARN("timeout in wait_pending_extra_info_updates\n");
 }
 
-int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
+static inline struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_manager *mgr)
+{
+	return mgr->output ? mgr->output->device : NULL;
+}
+
+static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
+{
+	unsigned long timeout = msecs_to_jiffies(500);
+	struct omap_dss_device *dssdev = mgr->get_device(mgr);
+	u32 irq;
+	int r;
+
+	r = dispc_runtime_get();
+	if (r)
+		return r;
+
+	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC)
+		irq = DISPC_IRQ_EVSYNC_ODD;
+	else if (dssdev->type == OMAP_DISPLAY_TYPE_HDMI)
+		irq = DISPC_IRQ_EVSYNC_EVEN;
+	else
+		irq = dispc_mgr_get_vsync_irq(mgr->id);
+
+	r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
+
+	dispc_runtime_put();
+
+	return r;
+}
+
+static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
@@ -885,7 +915,7 @@ static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
 	mp->info = mp->user_info;
 }
 
-int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
+static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 {
 	unsigned long flags;
 	struct omap_overlay *ovl;
@@ -1058,7 +1088,7 @@ out:
 	mutex_unlock(&apply_lock);
 }
 
-int dss_mgr_set_info(struct omap_overlay_manager *mgr,
+static int dss_mgr_set_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
@@ -1079,7 +1109,7 @@ int dss_mgr_set_info(struct omap_overlay_manager *mgr,
 	return 0;
 }
 
-void dss_mgr_get_info(struct omap_overlay_manager *mgr,
+static void dss_mgr_get_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
@@ -1092,7 +1122,7 @@ void dss_mgr_get_info(struct omap_overlay_manager *mgr,
 	spin_unlock_irqrestore(&data_lock, flags);
 }
 
-int dss_mgr_set_output(struct omap_overlay_manager *mgr,
+static int dss_mgr_set_output(struct omap_overlay_manager *mgr,
 		struct omap_dss_output *output)
 {
 	int r;
@@ -1124,7 +1154,7 @@ err:
 	return r;
 }
 
-int dss_mgr_unset_output(struct omap_overlay_manager *mgr)
+static int dss_mgr_unset_output(struct omap_overlay_manager *mgr)
 {
 	int r;
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
@@ -1470,6 +1500,7 @@ static DEFINE_MUTEX(compat_init_lock);
 int omapdss_compat_init(void)
 {
 	struct platform_device *pdev = dss_get_core_pdev();
+	int i;
 
 	mutex_lock(&compat_init_lock);
 
@@ -1481,6 +1512,21 @@ int omapdss_compat_init(void)
 	dss_init_overlay_managers(pdev);
 	dss_init_overlays(pdev);
 
+	for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) {
+		struct omap_overlay_manager *mgr;
+
+		mgr = omap_dss_get_overlay_manager(i);
+
+		mgr->set_output = &dss_mgr_set_output;
+		mgr->unset_output = &dss_mgr_unset_output;
+		mgr->apply = &omap_dss_mgr_apply;
+		mgr->set_manager_info = &dss_mgr_set_info;
+		mgr->get_manager_info = &dss_mgr_get_info;
+		mgr->wait_for_go = &dss_mgr_wait_for_go;
+		mgr->wait_for_vsync = &dss_mgr_wait_for_vsync;
+		mgr->get_device = &dss_mgr_get_device;
+	}
+
 out:
 	mutex_unlock(&compat_init_lock);
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 9da3d61b8a5..9e093bc81b5 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -178,20 +178,10 @@ void dss_copy_device_pdata(struct omap_dss_device *dst,
 		const struct omap_dss_device *src);
 
 /* apply */
-int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr);
 int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
 void dss_mgr_start_update(struct omap_overlay_manager *mgr);
-int omap_dss_mgr_apply(struct omap_overlay_manager *mgr);
-
 int dss_mgr_enable(struct omap_overlay_manager *mgr);
 void dss_mgr_disable(struct omap_overlay_manager *mgr);
-int dss_mgr_set_info(struct omap_overlay_manager *mgr,
-		struct omap_overlay_manager_info *info);
-void dss_mgr_get_info(struct omap_overlay_manager *mgr,
-		struct omap_overlay_manager_info *info);
-int dss_mgr_set_output(struct omap_overlay_manager *mgr,
-		struct omap_dss_output *output);
-int dss_mgr_unset_output(struct omap_overlay_manager *mgr);
 void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
 		const struct omap_video_timings *timings);
 void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index c54d2f620ce..2551eaa14c4 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -36,36 +36,6 @@
 static int num_managers;
 static struct omap_overlay_manager *managers;
 
-static inline struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_manager *mgr)
-{
-	return mgr->output ? mgr->output->device : NULL;
-}
-
-static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
-{
-	unsigned long timeout = msecs_to_jiffies(500);
-	struct omap_dss_device *dssdev = mgr->get_device(mgr);
-	u32 irq;
-	int r;
-
-	r = dispc_runtime_get();
-	if (r)
-		return r;
-
-	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC)
-		irq = DISPC_IRQ_EVSYNC_ODD;
-	else if (dssdev->type == OMAP_DISPLAY_TYPE_HDMI)
-		irq = DISPC_IRQ_EVSYNC_EVEN;
-	else
-		irq = dispc_mgr_get_vsync_irq(mgr->id);
-
-	r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
-
-	dispc_runtime_put();
-
-	return r;
-}
-
 int dss_init_overlay_managers(struct platform_device *pdev)
 {
 	int i, r;
@@ -99,15 +69,6 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 			break;
 		}
 
-		mgr->set_output = &dss_mgr_set_output;
-		mgr->unset_output = &dss_mgr_unset_output;
-		mgr->apply = &omap_dss_mgr_apply;
-		mgr->set_manager_info = &dss_mgr_set_info;
-		mgr->get_manager_info = &dss_mgr_get_info;
-		mgr->wait_for_go = &dss_mgr_wait_for_go;
-		mgr->wait_for_vsync = &dss_mgr_wait_for_vsync;
-		mgr->get_device = &dss_mgr_get_device;
-
 		mgr->caps = 0;
 		mgr->supported_displays =
 			dss_feat_get_supported_displays(mgr->id);
-- 
cgit v1.2.3


From 6abae7a18a8c9dbec96915eb924dc06288a47b02 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 23 Oct 2012 13:45:07 +0300
Subject: OMAPDSS: move ovl function setup to apply.c

Most of the functions that are assigned to the fields in ovl struct are
in apply.c. By moving the function pointer setup into apply.c we can
make these functions static.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 37 +++++++++++++++++++++++++++++--------
 drivers/video/omap2/dss/dss.h     | 12 ------------
 drivers/video/omap2/dss/overlay.c | 17 -----------------
 3 files changed, 29 insertions(+), 37 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 98cebe30318..038876a68d1 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -416,6 +416,13 @@ static void wait_pending_extra_info_updates(void)
 		DSSWARN("timeout in wait_pending_extra_info_updates\n");
 }
 
+static inline struct omap_dss_device *dss_ovl_get_device(struct omap_overlay *ovl)
+{
+	return ovl->manager ?
+		(ovl->manager->output ? ovl->manager->output->device : NULL) :
+		NULL;
+}
+
 static inline struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_manager *mgr)
 {
 	return mgr->output ? mgr->output->device : NULL;
@@ -516,7 +523,7 @@ static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 	return r;
 }
 
-int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
+static int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
 	struct ovl_priv_data *op;
@@ -1248,7 +1255,7 @@ out:
 	spin_unlock_irqrestore(&data_lock, flags);
 }
 
-int dss_ovl_set_info(struct omap_overlay *ovl,
+static int dss_ovl_set_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
@@ -1269,7 +1276,7 @@ int dss_ovl_set_info(struct omap_overlay *ovl,
 	return 0;
 }
 
-void dss_ovl_get_info(struct omap_overlay *ovl,
+static void dss_ovl_get_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
@@ -1282,7 +1289,7 @@ void dss_ovl_get_info(struct omap_overlay *ovl,
 	spin_unlock_irqrestore(&data_lock, flags);
 }
 
-int dss_ovl_set_manager(struct omap_overlay *ovl,
+static int dss_ovl_set_manager(struct omap_overlay *ovl,
 		struct omap_overlay_manager *mgr)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
@@ -1334,7 +1341,7 @@ err:
 	return r;
 }
 
-int dss_ovl_unset_manager(struct omap_overlay *ovl)
+static int dss_ovl_unset_manager(struct omap_overlay *ovl)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
 	unsigned long flags;
@@ -1394,7 +1401,7 @@ err:
 	return r;
 }
 
-bool dss_ovl_is_enabled(struct omap_overlay *ovl)
+static bool dss_ovl_is_enabled(struct omap_overlay *ovl)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
 	unsigned long flags;
@@ -1409,7 +1416,7 @@ bool dss_ovl_is_enabled(struct omap_overlay *ovl)
 	return e;
 }
 
-int dss_ovl_enable(struct omap_overlay *ovl)
+static int dss_ovl_enable(struct omap_overlay *ovl)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
 	unsigned long flags;
@@ -1459,7 +1466,7 @@ err1:
 	return r;
 }
 
-int dss_ovl_disable(struct omap_overlay *ovl)
+static int dss_ovl_disable(struct omap_overlay *ovl)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
 	unsigned long flags;
@@ -1527,6 +1534,20 @@ int omapdss_compat_init(void)
 		mgr->get_device = &dss_mgr_get_device;
 	}
 
+	for (i = 0; i < omap_dss_get_num_overlays(); i++) {
+		struct omap_overlay *ovl = omap_dss_get_overlay(i);
+
+		ovl->is_enabled = &dss_ovl_is_enabled;
+		ovl->enable = &dss_ovl_enable;
+		ovl->disable = &dss_ovl_disable;
+		ovl->set_manager = &dss_ovl_set_manager;
+		ovl->unset_manager = &dss_ovl_unset_manager;
+		ovl->set_overlay_info = &dss_ovl_set_info;
+		ovl->get_overlay_info = &dss_ovl_get_info;
+		ovl->wait_for_go = &dss_mgr_wait_for_go_ovl;
+		ovl->get_device = &dss_ovl_get_device;
+	}
+
 out:
 	mutex_unlock(&compat_init_lock);
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 9e093bc81b5..9ce798645b2 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -178,7 +178,6 @@ void dss_copy_device_pdata(struct omap_dss_device *dst,
 		const struct omap_dss_device *src);
 
 /* apply */
-int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
 void dss_mgr_start_update(struct omap_overlay_manager *mgr);
 int dss_mgr_enable(struct omap_overlay_manager *mgr);
 void dss_mgr_disable(struct omap_overlay_manager *mgr);
@@ -187,17 +186,6 @@ void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
 void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
 		const struct dss_lcd_mgr_config *config);
 
-bool dss_ovl_is_enabled(struct omap_overlay *ovl);
-int dss_ovl_enable(struct omap_overlay *ovl);
-int dss_ovl_disable(struct omap_overlay *ovl);
-int dss_ovl_set_info(struct omap_overlay *ovl,
-		struct omap_overlay_info *info);
-void dss_ovl_get_info(struct omap_overlay *ovl,
-		struct omap_overlay_info *info);
-int dss_ovl_set_manager(struct omap_overlay *ovl,
-		struct omap_overlay_manager *mgr);
-int dss_ovl_unset_manager(struct omap_overlay *ovl);
-
 /* output */
 void dss_register_output(struct omap_dss_output *out);
 void dss_unregister_output(struct omap_dss_output *out);
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 45f4994bc6b..eccde322c28 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -38,13 +38,6 @@
 static int num_overlays;
 static struct omap_overlay *overlays;
 
-static inline struct omap_dss_device *dss_ovl_get_device(struct omap_overlay *ovl)
-{
-	return ovl->manager ?
-		(ovl->manager->output ? ovl->manager->output->device : NULL) :
-		NULL;
-}
-
 int omap_dss_get_num_overlays(void)
 {
 	return num_overlays;
@@ -93,16 +86,6 @@ void dss_init_overlays(struct platform_device *pdev)
 			break;
 		}
 
-		ovl->is_enabled = &dss_ovl_is_enabled;
-		ovl->enable = &dss_ovl_enable;
-		ovl->disable = &dss_ovl_disable;
-		ovl->set_manager = &dss_ovl_set_manager;
-		ovl->unset_manager = &dss_ovl_unset_manager;
-		ovl->set_overlay_info = &dss_ovl_set_info;
-		ovl->get_overlay_info = &dss_ovl_get_info;
-		ovl->wait_for_go = &dss_mgr_wait_for_go_ovl;
-		ovl->get_device = &dss_ovl_get_device;
-
 		ovl->caps = dss_feat_get_overlay_caps(ovl->id);
 		ovl->supported_modes =
 			dss_feat_get_supported_color_modes(ovl->id);
-- 
cgit v1.2.3


From 74b65ec24560ab0df0e7b789fa91cde4a442f169 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 10:56:05 +0300
Subject: OMAPDSS: add manager ops

The output drivers need some operations from the overlay managers, like
enable and set_timings. These will affect the dispc registers, and need
to be synchronized with the composition-side changes with overlays and
overlay managers.

We want to handle these calls in the apply.c in the compatibility mode,
but when in non-compat mode, the calls need to be handled by some other
component (e.g. omapdrm).

To make this possible, this patch creates a set of function pointers in
a dss_mgr_ops struct, that is used to redirect the calls into the
correct destination.

The non-compat users can install their mgr ops with
dss_install_mgr_ops() function.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c  | 36 ++++++++++++++++++++++++++------
 drivers/video/omap2/dss/dss.h    | 13 ++++++++++++
 drivers/video/omap2/dss/output.c | 44 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 87 insertions(+), 6 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 038876a68d1..70eaa8f70e9 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -781,7 +781,7 @@ static void mgr_clear_shadow_dirty(struct omap_overlay_manager *mgr)
 	}
 }
 
-void dss_mgr_start_update(struct omap_overlay_manager *mgr)
+static void dss_mgr_start_update_compat(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	unsigned long flags;
@@ -1021,7 +1021,7 @@ static void dss_setup_fifos(void)
 	}
 }
 
-int dss_mgr_enable(struct omap_overlay_manager *mgr)
+static int dss_mgr_enable_compat(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	unsigned long flags;
@@ -1071,7 +1071,7 @@ err:
 	return r;
 }
 
-void dss_mgr_disable(struct omap_overlay_manager *mgr)
+static void dss_mgr_disable_compat(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	unsigned long flags;
@@ -1208,7 +1208,7 @@ static void dss_apply_mgr_timings(struct omap_overlay_manager *mgr,
 	mp->extra_info_dirty = true;
 }
 
-void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
+static void dss_mgr_set_timings_compat(struct omap_overlay_manager *mgr,
 		const struct omap_video_timings *timings)
 {
 	unsigned long flags;
@@ -1236,7 +1236,7 @@ static void dss_apply_mgr_lcd_config(struct omap_overlay_manager *mgr,
 	mp->extra_info_dirty = true;
 }
 
-void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
+static void dss_mgr_set_lcd_config_compat(struct omap_overlay_manager *mgr,
 		const struct dss_lcd_mgr_config *config)
 {
 	unsigned long flags;
@@ -1501,13 +1501,21 @@ err:
 	return r;
 }
 
+static const struct dss_mgr_ops apply_mgr_ops = {
+	.start_update = dss_mgr_start_update_compat,
+	.enable = dss_mgr_enable_compat,
+	.disable = dss_mgr_disable_compat,
+	.set_timings = dss_mgr_set_timings_compat,
+	.set_lcd_config = dss_mgr_set_lcd_config_compat,
+};
+
 static int compat_refcnt;
 static DEFINE_MUTEX(compat_init_lock);
 
 int omapdss_compat_init(void)
 {
 	struct platform_device *pdev = dss_get_core_pdev();
-	int i;
+	int i, r;
 
 	mutex_lock(&compat_init_lock);
 
@@ -1548,10 +1556,24 @@ int omapdss_compat_init(void)
 		ovl->get_device = &dss_ovl_get_device;
 	}
 
+	r = dss_install_mgr_ops(&apply_mgr_ops);
+	if (r)
+		goto err_mgr_ops;
+
 out:
 	mutex_unlock(&compat_init_lock);
 
 	return 0;
+
+err_mgr_ops:
+	dss_uninit_overlay_managers(pdev);
+	dss_uninit_overlays(pdev);
+
+	compat_refcnt--;
+
+	mutex_unlock(&compat_init_lock);
+
+	return r;
 }
 EXPORT_SYMBOL(omapdss_compat_init);
 
@@ -1564,6 +1586,8 @@ void omapdss_compat_uninit(void)
 	if (--compat_refcnt > 0)
 		goto out;
 
+	dss_uninstall_mgr_ops();
+
 	dss_uninit_overlay_managers(pdev);
 	dss_uninit_overlays(pdev);
 out:
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 9ce798645b2..5cc13ea2b5a 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -523,4 +523,17 @@ static inline void dss_collect_irq_stats(u32 irqstatus, unsigned *irq_arr)
 }
 #endif
 
+struct dss_mgr_ops {
+	void (*start_update)(struct omap_overlay_manager *mgr);
+	int (*enable)(struct omap_overlay_manager *mgr);
+	void (*disable)(struct omap_overlay_manager *mgr);
+	void (*set_timings)(struct omap_overlay_manager *mgr,
+			const struct omap_video_timings *timings);
+	void (*set_lcd_config)(struct omap_overlay_manager *mgr,
+			const struct dss_lcd_mgr_config *config);
+};
+
+int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops);
+void dss_uninstall_mgr_ops(void);
+
 #endif
diff --git a/drivers/video/omap2/dss/output.c b/drivers/video/omap2/dss/output.c
index 1a84b79d558..9527ee6a769 100644
--- a/drivers/video/omap2/dss/output.c
+++ b/drivers/video/omap2/dss/output.c
@@ -113,3 +113,47 @@ struct omap_dss_output *omap_dss_get_output(enum omap_dss_output_id id)
 
 	return NULL;
 }
+
+static const struct dss_mgr_ops *dss_mgr_ops;
+
+int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops)
+{
+	if (dss_mgr_ops)
+		return -EBUSY;
+
+	dss_mgr_ops = mgr_ops;
+
+	return 0;
+}
+
+void dss_uninstall_mgr_ops(void)
+{
+	dss_mgr_ops = NULL;
+}
+
+void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
+		const struct omap_video_timings *timings)
+{
+	dss_mgr_ops->set_timings(mgr, timings);
+}
+
+void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
+		const struct dss_lcd_mgr_config *config)
+{
+	dss_mgr_ops->set_lcd_config(mgr, config);
+}
+
+int dss_mgr_enable(struct omap_overlay_manager *mgr)
+{
+	return dss_mgr_ops->enable(mgr);
+}
+
+void dss_mgr_disable(struct omap_overlay_manager *mgr)
+{
+	dss_mgr_ops->disable(mgr);
+}
+
+void dss_mgr_start_update(struct omap_overlay_manager *mgr)
+{
+	dss_mgr_ops->start_update(mgr);
+}
-- 
cgit v1.2.3


From 1550202d4a7593655a2aca99e39a58751073c92a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 13:59:07 +0300
Subject: OMAPDSS: manage framedone irq with mgr ops

Some of the output drivers need to handle FRAMEDONE interrupt from
DISPC. This creates a direct dependency to dispc code, and we need to
avoid this to make the compat code to work.

Instead of the output drivers registering for dispc interrupts, we
create new mgr-ops that are used to register a framedone handler. The
code implementing the mgr-ops is responsible for calling the handler
when DISPC FRAMEDONE interrupt happens. The compat layer is improved
accordingly to do the call to the framedone handler.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c  | 46 ++++++++++++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/dsi.c    | 26 ++++++++---------------
 drivers/video/omap2/dss/dss.h    |  8 +++++++
 drivers/video/omap2/dss/output.c | 12 +++++++++++
 drivers/video/omap2/dss/rfbi.c   | 12 ++++++-----
 5 files changed, 82 insertions(+), 22 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 70eaa8f70e9..5952f149c91 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -105,6 +105,9 @@ struct mgr_priv_data {
 
 	struct omap_video_timings timings;
 	struct dss_lcd_mgr_config lcd_config;
+
+	void (*framedone_handler)(void *);
+	void *framedone_handler_data;
 };
 
 static struct {
@@ -888,6 +891,21 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	if (!extra_updating)
 		complete_all(&extra_updated_completion);
 
+	/* call framedone handlers for manual update displays */
+	for (i = 0; i < num_mgrs; i++) {
+		struct omap_overlay_manager *mgr;
+		struct mgr_priv_data *mp;
+
+		mgr = omap_dss_get_overlay_manager(i);
+		mp = get_mgr_priv(mgr);
+
+		if (!mgr_manual_update(mgr) || !mp->framedone_handler)
+			continue;
+
+		if (mask & dispc_mgr_get_framedone_irq(i))
+			mp->framedone_handler(mp->framedone_handler_data);
+	}
+
 	if (!need_isr())
 		dss_unregister_vsync_isr();
 
@@ -1501,12 +1519,40 @@ err:
 	return r;
 }
 
+static int dss_mgr_register_framedone_handler_compat(struct omap_overlay_manager *mgr,
+		void (*handler)(void *), void *data)
+{
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
+
+	if (mp->framedone_handler)
+		return -EBUSY;
+
+	mp->framedone_handler = handler;
+	mp->framedone_handler_data = data;
+
+	return 0;
+}
+
+static void dss_mgr_unregister_framedone_handler_compat(struct omap_overlay_manager *mgr,
+		void (*handler)(void *), void *data)
+{
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
+
+	WARN_ON(mp->framedone_handler != handler ||
+			mp->framedone_handler_data != data);
+
+	mp->framedone_handler = NULL;
+	mp->framedone_handler_data = NULL;
+}
+
 static const struct dss_mgr_ops apply_mgr_ops = {
 	.start_update = dss_mgr_start_update_compat,
 	.enable = dss_mgr_enable_compat,
 	.disable = dss_mgr_disable_compat,
 	.set_timings = dss_mgr_set_timings_compat,
 	.set_lcd_config = dss_mgr_set_lcd_config_compat,
+	.register_framedone_handler = dss_mgr_register_framedone_handler_compat,
+	.unregister_framedone_handler = dss_mgr_unregister_framedone_handler_compat,
 };
 
 static int compat_refcnt;
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index db9663dcfbd..28d41d16b7b 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4535,7 +4535,7 @@ static void dsi_framedone_timeout_work_callback(struct work_struct *work)
 	dsi_handle_framedone(dsi->pdev, -ETIMEDOUT);
 }
 
-static void dsi_framedone_irq_callback(void *data, u32 mask)
+static void dsi_framedone_irq_callback(void *data)
 {
 	struct platform_device *dsidev = (struct platform_device *) data;
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
@@ -4609,7 +4609,6 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	struct omap_overlay_manager *mgr = dssdev->output->manager;
 	int r;
-	u32 irq = 0;
 
 	if (dsi->mode == OMAP_DSS_DSI_CMD_MODE) {
 		dsi->timings.hsw = 1;
@@ -4619,12 +4618,10 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
 		dsi->timings.vfp = 0;
 		dsi->timings.vbp = 0;
 
-		irq = dispc_mgr_get_framedone_irq(mgr->id);
-
-		r = omap_dispc_register_isr(dsi_framedone_irq_callback,
-			(void *) dsidev, irq);
+		r = dss_mgr_register_framedone_handler(mgr,
+				dsi_framedone_irq_callback, dsidev);
 		if (r) {
-			DSSERR("can't get FRAMEDONE irq\n");
+			DSSERR("can't register FRAMEDONE handler\n");
 			goto err;
 		}
 
@@ -4662,8 +4659,8 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
 	return 0;
 err1:
 	if (dsi->mode == OMAP_DSS_DSI_CMD_MODE)
-		omap_dispc_unregister_isr(dsi_framedone_irq_callback,
-			(void *) dsidev, irq);
+		dss_mgr_unregister_framedone_handler(mgr,
+				dsi_framedone_irq_callback, dsidev);
 err:
 	return r;
 }
@@ -4674,14 +4671,9 @@ static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev)
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	struct omap_overlay_manager *mgr = dssdev->output->manager;
 
-	if (dsi->mode == OMAP_DSS_DSI_CMD_MODE) {
-		u32 irq;
-
-		irq = dispc_mgr_get_framedone_irq(mgr->id);
-
-		omap_dispc_unregister_isr(dsi_framedone_irq_callback,
-			(void *) dsidev, irq);
-	}
+	if (dsi->mode == OMAP_DSS_DSI_CMD_MODE)
+		dss_mgr_unregister_framedone_handler(mgr,
+				dsi_framedone_irq_callback, dsidev);
 }
 
 static int dsi_configure_dsi_clocks(struct omap_dss_device *dssdev)
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 5cc13ea2b5a..8ae73670aa3 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -185,6 +185,10 @@ void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
 		const struct omap_video_timings *timings);
 void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
 		const struct dss_lcd_mgr_config *config);
+int dss_mgr_register_framedone_handler(struct omap_overlay_manager *mgr,
+		void (*handler)(void *), void *data);
+void dss_mgr_unregister_framedone_handler(struct omap_overlay_manager *mgr,
+		void (*handler)(void *), void *data);
 
 /* output */
 void dss_register_output(struct omap_dss_output *out);
@@ -531,6 +535,10 @@ struct dss_mgr_ops {
 			const struct omap_video_timings *timings);
 	void (*set_lcd_config)(struct omap_overlay_manager *mgr,
 			const struct dss_lcd_mgr_config *config);
+	int (*register_framedone_handler)(struct omap_overlay_manager *mgr,
+			void (*handler)(void *), void *data);
+	void (*unregister_framedone_handler)(struct omap_overlay_manager *mgr,
+			void (*handler)(void *), void *data);
 };
 
 int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops);
diff --git a/drivers/video/omap2/dss/output.c b/drivers/video/omap2/dss/output.c
index 9527ee6a769..6def0d7bbd0 100644
--- a/drivers/video/omap2/dss/output.c
+++ b/drivers/video/omap2/dss/output.c
@@ -157,3 +157,15 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 {
 	dss_mgr_ops->start_update(mgr);
 }
+
+int dss_mgr_register_framedone_handler(struct omap_overlay_manager *mgr,
+		void (*handler)(void *), void *data)
+{
+	return dss_mgr_ops->register_framedone_handler(mgr, handler, data);
+}
+
+void dss_mgr_unregister_framedone_handler(struct omap_overlay_manager *mgr,
+		void (*handler)(void *), void *data)
+{
+	dss_mgr_ops->unregister_framedone_handler(mgr, handler, data);
+}
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index ec9fde52716..e903dd3f54d 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -342,7 +342,7 @@ static int rfbi_transfer_area(struct omap_dss_device *dssdev,
 	return 0;
 }
 
-static void framedone_callback(void *data, u32 mask)
+static void framedone_callback(void *data)
 {
 	void (*callback)(void *data);
 
@@ -908,8 +908,8 @@ int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev)
 		goto err0;
 	}
 
-	r = omap_dispc_register_isr(framedone_callback, NULL,
-			DISPC_IRQ_FRAMEDONE);
+	r = dss_mgr_register_framedone_handler(out->manager,
+			framedone_callback, NULL);
 	if (r) {
 		DSSERR("can't get FRAMEDONE irq\n");
 		goto err1;
@@ -933,8 +933,10 @@ EXPORT_SYMBOL(omapdss_rfbi_display_enable);
 
 void omapdss_rfbi_display_disable(struct omap_dss_device *dssdev)
 {
-	omap_dispc_unregister_isr(framedone_callback, NULL,
-			DISPC_IRQ_FRAMEDONE);
+	struct omap_dss_output *out = dssdev->output;
+
+	dss_mgr_unregister_framedone_handler(out->manager,
+			framedone_callback, NULL);
 	omap_dss_stop_device(dssdev);
 
 	rfbi_runtime_put();
-- 
cgit v1.2.3


From bb39813413db782cc77b94d55cb5d044f42079df Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 24 Oct 2012 12:39:53 +0300
Subject: OMAPDSS: move blocking mgr enable/disable to compat layer

dispc_mgr_enable_sync and dispc_mgr_disable_sync are only used with the
compat mode. Non-compat will use the simpler enable and disable
functions.

This patch moves the synchronous enable/disable code to the compat
layer. A new file is created, dispc-compat.c, which contains low level
dispc compat code (versus apply.c, which contains slightly higher level
compat code).

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile       |   2 +-
 drivers/video/omap2/dss/apply.c        |   1 +
 drivers/video/omap2/dss/dispc-compat.c | 207 +++++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/dispc-compat.h |  24 ++++
 drivers/video/omap2/dss/dispc.c        | 175 ----------------------------
 drivers/video/omap2/dss/dss.h          |   2 -
 6 files changed, 233 insertions(+), 178 deletions(-)
 create mode 100644 drivers/video/omap2/dss/dispc-compat.c
 create mode 100644 drivers/video/omap2/dss/dispc-compat.h

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index af866d0b794..c834f9c4200 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -1,7 +1,7 @@
 obj-$(CONFIG_OMAP2_DSS) += omapdss.o
 omapdss-y := core.o dss.o dss_features.o dispc.o dispc_coefs.o display.o \
 	manager.o manager-sysfs.o overlay.o overlay-sysfs.o output.o apply.o \
-	display-sysfs.o
+	display-sysfs.o dispc-compat.o
 omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o
 omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o venc_panel.o
diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 5952f149c91..0de0d3cf176 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -27,6 +27,7 @@
 
 #include "dss.h"
 #include "dss_features.h"
+#include "dispc-compat.h"
 
 /*
  * We have 4 levels of cache for the dispc settings. First two are in SW and
diff --git a/drivers/video/omap2/dss/dispc-compat.c b/drivers/video/omap2/dss/dispc-compat.c
new file mode 100644
index 00000000000..cca38488ab2
--- /dev/null
+++ b/drivers/video/omap2/dss/dispc-compat.c
@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2012 Texas Instruments
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "APPLY"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/jiffies.h>
+#include <linux/delay.h>
+
+#include <video/omapdss.h>
+
+#include "dss.h"
+#include "dss_features.h"
+#include "dispc-compat.h"
+
+static void dispc_mgr_disable_isr(void *data, u32 mask)
+{
+	struct completion *compl = data;
+	complete(compl);
+}
+
+static void dispc_mgr_enable_lcd_out(enum omap_channel channel)
+{
+	dispc_mgr_enable(channel, true);
+}
+
+static void dispc_mgr_disable_lcd_out(enum omap_channel channel)
+{
+	DECLARE_COMPLETION_ONSTACK(framedone_compl);
+	int r;
+	u32 irq;
+
+	if (dispc_mgr_is_enabled(channel) == false)
+		return;
+
+	/*
+	 * When we disable LCD output, we need to wait for FRAMEDONE to know
+	 * that DISPC has finished with the LCD output.
+	 */
+
+	irq = dispc_mgr_get_framedone_irq(channel);
+
+	r = omap_dispc_register_isr(dispc_mgr_disable_isr, &framedone_compl,
+			irq);
+	if (r)
+		DSSERR("failed to register FRAMEDONE isr\n");
+
+	dispc_mgr_enable(channel, false);
+
+	/* if we couldn't register for framedone, just sleep and exit */
+	if (r) {
+		msleep(100);
+		return;
+	}
+
+	if (!wait_for_completion_timeout(&framedone_compl,
+				msecs_to_jiffies(100)))
+		DSSERR("timeout waiting for FRAME DONE\n");
+
+	r = omap_dispc_unregister_isr(dispc_mgr_disable_isr, &framedone_compl,
+			irq);
+	if (r)
+		DSSERR("failed to unregister FRAMEDONE isr\n");
+}
+
+static void dispc_digit_out_enable_isr(void *data, u32 mask)
+{
+	struct completion *compl = data;
+
+	/* ignore any sync lost interrupts */
+	if (mask & (DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD))
+		complete(compl);
+}
+
+static void dispc_mgr_enable_digit_out(void)
+{
+	DECLARE_COMPLETION_ONSTACK(vsync_compl);
+	int r;
+	u32 irq_mask;
+
+	if (dispc_mgr_is_enabled(OMAP_DSS_CHANNEL_DIGIT) == true)
+		return;
+
+	/*
+	 * Digit output produces some sync lost interrupts during the first
+	 * frame when enabling. Those need to be ignored, so we register for the
+	 * sync lost irq to prevent the error handler from triggering.
+	 */
+
+	irq_mask = dispc_mgr_get_vsync_irq(OMAP_DSS_CHANNEL_DIGIT) |
+		dispc_mgr_get_sync_lost_irq(OMAP_DSS_CHANNEL_DIGIT);
+
+	r = omap_dispc_register_isr(dispc_digit_out_enable_isr, &vsync_compl,
+			irq_mask);
+	if (r) {
+		DSSERR("failed to register %x isr\n", irq_mask);
+		return;
+	}
+
+	dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, true);
+
+	/* wait for the first evsync */
+	if (!wait_for_completion_timeout(&vsync_compl, msecs_to_jiffies(100)))
+		DSSERR("timeout waiting for digit out to start\n");
+
+	r = omap_dispc_unregister_isr(dispc_digit_out_enable_isr, &vsync_compl,
+			irq_mask);
+	if (r)
+		DSSERR("failed to unregister %x isr\n", irq_mask);
+}
+
+static void dispc_mgr_disable_digit_out(void)
+{
+	DECLARE_COMPLETION_ONSTACK(framedone_compl);
+	int r, i;
+	u32 irq_mask;
+	int num_irqs;
+
+	if (dispc_mgr_is_enabled(OMAP_DSS_CHANNEL_DIGIT) == false)
+		return;
+
+	/*
+	 * When we disable the digit output, we need to wait for FRAMEDONE to
+	 * know that DISPC has finished with the output.
+	 */
+
+	irq_mask = dispc_mgr_get_framedone_irq(OMAP_DSS_CHANNEL_DIGIT);
+	num_irqs = 1;
+
+	if (!irq_mask) {
+		/*
+		 * omap 2/3 don't have framedone irq for TV, so we need to use
+		 * vsyncs for this.
+		 */
+
+		irq_mask = dispc_mgr_get_vsync_irq(OMAP_DSS_CHANNEL_DIGIT);
+		/*
+		 * We need to wait for both even and odd vsyncs. Note that this
+		 * is not totally reliable, as we could get a vsync interrupt
+		 * before we disable the output, which leads to timeout in the
+		 * wait_for_completion.
+		 */
+		num_irqs = 2;
+	}
+
+	r = omap_dispc_register_isr(dispc_mgr_disable_isr, &framedone_compl,
+			irq_mask);
+	if (r)
+		DSSERR("failed to register %x isr\n", irq_mask);
+
+	dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, false);
+
+	/* if we couldn't register the irq, just sleep and exit */
+	if (r) {
+		msleep(100);
+		return;
+	}
+
+	for (i = 0; i < num_irqs; ++i) {
+		if (!wait_for_completion_timeout(&framedone_compl,
+					msecs_to_jiffies(100)))
+			DSSERR("timeout waiting for digit out to stop\n");
+	}
+
+	r = omap_dispc_unregister_isr(dispc_mgr_disable_isr, &framedone_compl,
+			irq_mask);
+	if (r)
+		DSSERR("failed to unregister %x isr\n", irq_mask);
+}
+
+void dispc_mgr_enable_sync(enum omap_channel channel)
+{
+	if (dss_mgr_is_lcd(channel))
+		dispc_mgr_enable_lcd_out(channel);
+	else if (channel == OMAP_DSS_CHANNEL_DIGIT)
+		dispc_mgr_enable_digit_out();
+	else
+		WARN_ON(1);
+}
+
+void dispc_mgr_disable_sync(enum omap_channel channel)
+{
+	if (dss_mgr_is_lcd(channel))
+		dispc_mgr_disable_lcd_out(channel);
+	else if (channel == OMAP_DSS_CHANNEL_DIGIT)
+		dispc_mgr_disable_digit_out();
+	else
+		WARN_ON(1);
+}
+
diff --git a/drivers/video/omap2/dss/dispc-compat.h b/drivers/video/omap2/dss/dispc-compat.h
new file mode 100644
index 00000000000..2d4f5e77a7b
--- /dev/null
+++ b/drivers/video/omap2/dss/dispc-compat.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2012 Texas Instruments
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __OMAP2_DSS_DISPC_COMPAT_H
+#define __OMAP2_DSS_DISPC_COMPAT_H
+
+void dispc_mgr_enable_sync(enum omap_channel channel);
+void dispc_mgr_disable_sync(enum omap_channel channel);
+
+#endif
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index f7df5230678..73972e99ec6 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2599,12 +2599,6 @@ bool dispc_ovl_enabled(enum omap_plane plane)
 	return REG_GET(DISPC_OVL_ATTRIBUTES(plane), 0, 0);
 }
 
-static void dispc_mgr_disable_isr(void *data, u32 mask)
-{
-	struct completion *compl = data;
-	complete(compl);
-}
-
 void dispc_mgr_enable(enum omap_channel channel, bool enable)
 {
 	mgr_fld_write(channel, DISPC_MGR_FLD_ENABLE, enable);
@@ -2617,175 +2611,6 @@ bool dispc_mgr_is_enabled(enum omap_channel channel)
 	return !!mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE);
 }
 
-static void dispc_mgr_enable_lcd_out(enum omap_channel channel)
-{
-	dispc_mgr_enable(channel, true);
-}
-
-static void dispc_mgr_disable_lcd_out(enum omap_channel channel)
-{
-	DECLARE_COMPLETION_ONSTACK(framedone_compl);
-	int r;
-	u32 irq;
-
-	if (dispc_mgr_is_enabled(channel) == false)
-		return;
-
-	/*
-	 * When we disable LCD output, we need to wait for FRAMEDONE to know
-	 * that DISPC has finished with the LCD output.
-	 */
-
-	irq = dispc_mgr_get_framedone_irq(channel);
-
-	r = omap_dispc_register_isr(dispc_mgr_disable_isr, &framedone_compl,
-			irq);
-	if (r)
-		DSSERR("failed to register FRAMEDONE isr\n");
-
-	dispc_mgr_enable(channel, false);
-
-	/* if we couldn't register for framedone, just sleep and exit */
-	if (r) {
-		msleep(100);
-		return;
-	}
-
-	if (!wait_for_completion_timeout(&framedone_compl,
-				msecs_to_jiffies(100)))
-		DSSERR("timeout waiting for FRAME DONE\n");
-
-	r = omap_dispc_unregister_isr(dispc_mgr_disable_isr, &framedone_compl,
-			irq);
-	if (r)
-		DSSERR("failed to unregister FRAMEDONE isr\n");
-}
-
-static void dispc_digit_out_enable_isr(void *data, u32 mask)
-{
-	struct completion *compl = data;
-
-	/* ignore any sync lost interrupts */
-	if (mask & (DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD))
-		complete(compl);
-}
-
-static void dispc_mgr_enable_digit_out(void)
-{
-	DECLARE_COMPLETION_ONSTACK(vsync_compl);
-	int r;
-	u32 irq_mask;
-
-	if (dispc_mgr_is_enabled(OMAP_DSS_CHANNEL_DIGIT) == true)
-		return;
-
-	/*
-	 * Digit output produces some sync lost interrupts during the first
-	 * frame when enabling. Those need to be ignored, so we register for the
-	 * sync lost irq to prevent the error handler from triggering.
-	 */
-
-	irq_mask = dispc_mgr_get_vsync_irq(OMAP_DSS_CHANNEL_DIGIT) |
-		dispc_mgr_get_sync_lost_irq(OMAP_DSS_CHANNEL_DIGIT);
-
-	r = omap_dispc_register_isr(dispc_digit_out_enable_isr, &vsync_compl,
-			irq_mask);
-	if (r) {
-		DSSERR("failed to register %x isr\n", irq_mask);
-		return;
-	}
-
-	dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, true);
-
-	/* wait for the first evsync */
-	if (!wait_for_completion_timeout(&vsync_compl, msecs_to_jiffies(100)))
-		DSSERR("timeout waiting for digit out to start\n");
-
-	r = omap_dispc_unregister_isr(dispc_digit_out_enable_isr, &vsync_compl,
-			irq_mask);
-	if (r)
-		DSSERR("failed to unregister %x isr\n", irq_mask);
-}
-
-static void dispc_mgr_disable_digit_out(void)
-{
-	DECLARE_COMPLETION_ONSTACK(framedone_compl);
-	int r, i;
-	u32 irq_mask;
-	int num_irqs;
-
-	if (dispc_mgr_is_enabled(OMAP_DSS_CHANNEL_DIGIT) == false)
-		return;
-
-	/*
-	 * When we disable the digit output, we need to wait for FRAMEDONE to
-	 * know that DISPC has finished with the output.
-	 */
-
-	irq_mask = dispc_mgr_get_framedone_irq(OMAP_DSS_CHANNEL_DIGIT);
-	num_irqs = 1;
-
-	if (!irq_mask) {
-		/*
-		 * omap 2/3 don't have framedone irq for TV, so we need to use
-		 * vsyncs for this.
-		 */
-
-		irq_mask = dispc_mgr_get_vsync_irq(OMAP_DSS_CHANNEL_DIGIT);
-		/*
-		 * We need to wait for both even and odd vsyncs. Note that this
-		 * is not totally reliable, as we could get a vsync interrupt
-		 * before we disable the output, which leads to timeout in the
-		 * wait_for_completion.
-		 */
-		num_irqs = 2;
-	}
-
-	r = omap_dispc_register_isr(dispc_mgr_disable_isr, &framedone_compl,
-			irq_mask);
-	if (r)
-		DSSERR("failed to register %x isr\n", irq_mask);
-
-	dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, false);
-
-	/* if we couldn't register the irq, just sleep and exit */
-	if (r) {
-		msleep(100);
-		return;
-	}
-
-	for (i = 0; i < num_irqs; ++i) {
-		if (!wait_for_completion_timeout(&framedone_compl,
-					msecs_to_jiffies(100)))
-			DSSERR("timeout waiting for digit out to stop\n");
-	}
-
-	r = omap_dispc_unregister_isr(dispc_mgr_disable_isr, &framedone_compl,
-			irq_mask);
-	if (r)
-		DSSERR("failed to unregister %x isr\n", irq_mask);
-}
-
-void dispc_mgr_enable_sync(enum omap_channel channel)
-{
-	if (dss_mgr_is_lcd(channel))
-		dispc_mgr_enable_lcd_out(channel);
-	else if (channel == OMAP_DSS_CHANNEL_DIGIT)
-		dispc_mgr_enable_digit_out();
-	else
-		WARN_ON(1);
-}
-
-void dispc_mgr_disable_sync(enum omap_channel channel)
-{
-	if (dss_mgr_is_lcd(channel))
-		dispc_mgr_disable_lcd_out(channel);
-	else if (channel == OMAP_DSS_CHANNEL_DIGIT)
-		dispc_mgr_disable_digit_out();
-	else
-		WARN_ON(1);
-}
-
 void dispc_wb_enable(bool enable)
 {
 	dispc_ovl_enable(OMAP_DSS_WB, enable);
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 8ae73670aa3..9faaa63d308 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -426,8 +426,6 @@ bool dispc_mgr_go_busy(enum omap_channel channel);
 void dispc_mgr_go(enum omap_channel channel);
 void dispc_mgr_enable(enum omap_channel channel, bool enable);
 bool dispc_mgr_is_enabled(enum omap_channel channel);
-void dispc_mgr_enable_sync(enum omap_channel channel);
-void dispc_mgr_disable_sync(enum omap_channel channel);
 void dispc_mgr_set_lcd_config(enum omap_channel channel,
 		const struct dss_lcd_mgr_config *config);
 void dispc_mgr_set_timings(enum omap_channel channel,
-- 
cgit v1.2.3


From 549acbe7a3380dd3bd2ac71698549148ecc0d17e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 14:03:11 +0300
Subject: OMAPDSS: move omap_dispc_wait_for_irq_interruptible_timeout to
 dispc-compat.c

We have two functions to wait for a dispc interrupt:

int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout);
int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,

Of these, the former is not used at all, and can be removed. The latter
is only used by the compat layer, and can be moved to the compat layer
code.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc-compat.c | 30 ++++++++++++++++++
 drivers/video/omap2/dss/dispc-compat.h |  3 ++
 drivers/video/omap2/dss/dispc.c        | 57 ----------------------------------
 include/video/omapdss.h                |  4 ---
 4 files changed, 33 insertions(+), 61 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc-compat.c b/drivers/video/omap2/dss/dispc-compat.c
index cca38488ab2..24e1d5e974e 100644
--- a/drivers/video/omap2/dss/dispc-compat.c
+++ b/drivers/video/omap2/dss/dispc-compat.c
@@ -205,3 +205,33 @@ void dispc_mgr_disable_sync(enum omap_channel channel)
 		WARN_ON(1);
 }
 
+int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
+		unsigned long timeout)
+{
+	void dispc_irq_wait_handler(void *data, u32 mask)
+	{
+		complete((struct completion *)data);
+	}
+
+	int r;
+	DECLARE_COMPLETION_ONSTACK(completion);
+
+	r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
+			irqmask);
+
+	if (r)
+		return r;
+
+	timeout = wait_for_completion_interruptible_timeout(&completion,
+			timeout);
+
+	omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
+
+	if (timeout == 0)
+		return -ETIMEDOUT;
+
+	if (timeout == -ERESTARTSYS)
+		return -ERESTARTSYS;
+
+	return 0;
+}
diff --git a/drivers/video/omap2/dss/dispc-compat.h b/drivers/video/omap2/dss/dispc-compat.h
index 2d4f5e77a7b..8322d43d28c 100644
--- a/drivers/video/omap2/dss/dispc-compat.h
+++ b/drivers/video/omap2/dss/dispc-compat.h
@@ -21,4 +21,7 @@
 void dispc_mgr_enable_sync(enum omap_channel channel);
 void dispc_mgr_disable_sync(enum omap_channel channel);
 
+int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
+		unsigned long timeout);
+
 #endif
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 73972e99ec6..f7c73421402 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3750,63 +3750,6 @@ static void dispc_error_worker(struct work_struct *work)
 	dispc_runtime_put();
 }
 
-int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout)
-{
-	void dispc_irq_wait_handler(void *data, u32 mask)
-	{
-		complete((struct completion *)data);
-	}
-
-	int r;
-	DECLARE_COMPLETION_ONSTACK(completion);
-
-	r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
-			irqmask);
-
-	if (r)
-		return r;
-
-	timeout = wait_for_completion_timeout(&completion, timeout);
-
-	omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
-
-	if (timeout == 0)
-		return -ETIMEDOUT;
-
-	return 0;
-}
-
-int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
-		unsigned long timeout)
-{
-	void dispc_irq_wait_handler(void *data, u32 mask)
-	{
-		complete((struct completion *)data);
-	}
-
-	int r;
-	DECLARE_COMPLETION_ONSTACK(completion);
-
-	r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
-			irqmask);
-
-	if (r)
-		return r;
-
-	timeout = wait_for_completion_interruptible_timeout(&completion,
-			timeout);
-
-	omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
-
-	if (timeout == 0)
-		return -ETIMEDOUT;
-
-	if (timeout == -ERESTARTSYS)
-		return -ERESTARTSYS;
-
-	return 0;
-}
-
 static void _omap_dispc_initialize_irq(void)
 {
 	unsigned long flags;
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index a9402362d81..823a07b00fe 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -775,10 +775,6 @@ typedef void (*omap_dispc_isr_t) (void *arg, u32 mask);
 int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
 int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
 
-int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout);
-int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
-		unsigned long timeout);
-
 #define to_dss_driver(x) container_of((x), struct omap_dss_driver, driver)
 #define to_dss_device(x) container_of((x), struct omap_dss_device, dev)
 
-- 
cgit v1.2.3


From 96e2e6374385d2219b9011f6bfd0de7221a591d4 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 15:55:19 +0300
Subject: OMAPDSS: move irq handling to dispc-compat

The whole dispc irq handling system we currently have is only needed for
compat layer, and thus can be moved from dispc.c to the compat layer.

This is quite straigtforward, but we need to add new dispc functions to
request and free the actual hardware irq: dispc_request_irq() and
dispc_free_irq().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c        |  14 ++
 drivers/video/omap2/dss/dispc-compat.c | 430 ++++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/dispc-compat.h |   3 +
 drivers/video/omap2/dss/dispc.c        | 437 +--------------------------------
 drivers/video/omap2/dss/dss.h          |   5 +
 5 files changed, 463 insertions(+), 426 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 0de0d3cf176..29e11434b7d 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -1607,11 +1607,23 @@ int omapdss_compat_init(void)
 	if (r)
 		goto err_mgr_ops;
 
+	dispc_runtime_get();
+
+	r = dss_dispc_initialize_irq();
+	if (r)
+		goto err_init_irq;
+
+	dispc_runtime_put();
+
 out:
 	mutex_unlock(&compat_init_lock);
 
 	return 0;
 
+err_init_irq:
+	dispc_runtime_put();
+	dss_uninstall_mgr_ops();
+
 err_mgr_ops:
 	dss_uninit_overlay_managers(pdev);
 	dss_uninit_overlays(pdev);
@@ -1633,6 +1645,8 @@ void omapdss_compat_uninit(void)
 	if (--compat_refcnt > 0)
 		goto out;
 
+	dss_dispc_uninitialize_irq();
+
 	dss_uninstall_mgr_ops();
 
 	dss_uninit_overlay_managers(pdev);
diff --git a/drivers/video/omap2/dss/dispc-compat.c b/drivers/video/omap2/dss/dispc-compat.c
index 24e1d5e974e..928884c9a0a 100644
--- a/drivers/video/omap2/dss/dispc-compat.c
+++ b/drivers/video/omap2/dss/dispc-compat.c
@@ -23,6 +23,8 @@
 #include <linux/spinlock.h>
 #include <linux/jiffies.h>
 #include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/seq_file.h>
 
 #include <video/omapdss.h>
 
@@ -30,6 +32,434 @@
 #include "dss_features.h"
 #include "dispc-compat.h"
 
+#define DISPC_IRQ_MASK_ERROR            (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \
+					 DISPC_IRQ_OCP_ERR | \
+					 DISPC_IRQ_VID1_FIFO_UNDERFLOW | \
+					 DISPC_IRQ_VID2_FIFO_UNDERFLOW | \
+					 DISPC_IRQ_SYNC_LOST | \
+					 DISPC_IRQ_SYNC_LOST_DIGIT)
+
+#define DISPC_MAX_NR_ISRS		8
+
+struct omap_dispc_isr_data {
+	omap_dispc_isr_t	isr;
+	void			*arg;
+	u32			mask;
+};
+
+struct dispc_irq_stats {
+	unsigned long last_reset;
+	unsigned irq_count;
+	unsigned irqs[32];
+};
+
+static struct {
+	spinlock_t irq_lock;
+	u32 irq_error_mask;
+	struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
+	u32 error_irqs;
+	struct work_struct error_work;
+
+#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
+	spinlock_t irq_stats_lock;
+	struct dispc_irq_stats irq_stats;
+#endif
+} dispc_compat;
+
+
+#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
+static void dispc_dump_irqs(struct seq_file *s)
+{
+	unsigned long flags;
+	struct dispc_irq_stats stats;
+
+	spin_lock_irqsave(&dispc_compat.irq_stats_lock, flags);
+
+	stats = dispc_compat.irq_stats;
+	memset(&dispc_compat.irq_stats, 0, sizeof(dispc_compat.irq_stats));
+	dispc_compat.irq_stats.last_reset = jiffies;
+
+	spin_unlock_irqrestore(&dispc_compat.irq_stats_lock, flags);
+
+	seq_printf(s, "period %u ms\n",
+			jiffies_to_msecs(jiffies - stats.last_reset));
+
+	seq_printf(s, "irqs %d\n", stats.irq_count);
+#define PIS(x) \
+	seq_printf(s, "%-20s %10d\n", #x, stats.irqs[ffs(DISPC_IRQ_##x)-1]);
+
+	PIS(FRAMEDONE);
+	PIS(VSYNC);
+	PIS(EVSYNC_EVEN);
+	PIS(EVSYNC_ODD);
+	PIS(ACBIAS_COUNT_STAT);
+	PIS(PROG_LINE_NUM);
+	PIS(GFX_FIFO_UNDERFLOW);
+	PIS(GFX_END_WIN);
+	PIS(PAL_GAMMA_MASK);
+	PIS(OCP_ERR);
+	PIS(VID1_FIFO_UNDERFLOW);
+	PIS(VID1_END_WIN);
+	PIS(VID2_FIFO_UNDERFLOW);
+	PIS(VID2_END_WIN);
+	if (dss_feat_get_num_ovls() > 3) {
+		PIS(VID3_FIFO_UNDERFLOW);
+		PIS(VID3_END_WIN);
+	}
+	PIS(SYNC_LOST);
+	PIS(SYNC_LOST_DIGIT);
+	PIS(WAKEUP);
+	if (dss_has_feature(FEAT_MGR_LCD2)) {
+		PIS(FRAMEDONE2);
+		PIS(VSYNC2);
+		PIS(ACBIAS_COUNT_STAT2);
+		PIS(SYNC_LOST2);
+	}
+	if (dss_has_feature(FEAT_MGR_LCD3)) {
+		PIS(FRAMEDONE3);
+		PIS(VSYNC3);
+		PIS(ACBIAS_COUNT_STAT3);
+		PIS(SYNC_LOST3);
+	}
+#undef PIS
+}
+#endif
+
+/* dispc.irq_lock has to be locked by the caller */
+static void _omap_dispc_set_irqs(void)
+{
+	u32 mask;
+	int i;
+	struct omap_dispc_isr_data *isr_data;
+
+	mask = dispc_compat.irq_error_mask;
+
+	for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+		isr_data = &dispc_compat.registered_isr[i];
+
+		if (isr_data->isr == NULL)
+			continue;
+
+		mask |= isr_data->mask;
+	}
+
+	dispc_write_irqenable(mask);
+}
+
+int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
+{
+	int i;
+	int ret;
+	unsigned long flags;
+	struct omap_dispc_isr_data *isr_data;
+
+	if (isr == NULL)
+		return -EINVAL;
+
+	spin_lock_irqsave(&dispc_compat.irq_lock, flags);
+
+	/* check for duplicate entry */
+	for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+		isr_data = &dispc_compat.registered_isr[i];
+		if (isr_data->isr == isr && isr_data->arg == arg &&
+				isr_data->mask == mask) {
+			ret = -EINVAL;
+			goto err;
+		}
+	}
+
+	isr_data = NULL;
+	ret = -EBUSY;
+
+	for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+		isr_data = &dispc_compat.registered_isr[i];
+
+		if (isr_data->isr != NULL)
+			continue;
+
+		isr_data->isr = isr;
+		isr_data->arg = arg;
+		isr_data->mask = mask;
+		ret = 0;
+
+		break;
+	}
+
+	if (ret)
+		goto err;
+
+	_omap_dispc_set_irqs();
+
+	spin_unlock_irqrestore(&dispc_compat.irq_lock, flags);
+
+	return 0;
+err:
+	spin_unlock_irqrestore(&dispc_compat.irq_lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(omap_dispc_register_isr);
+
+int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
+{
+	int i;
+	unsigned long flags;
+	int ret = -EINVAL;
+	struct omap_dispc_isr_data *isr_data;
+
+	spin_lock_irqsave(&dispc_compat.irq_lock, flags);
+
+	for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+		isr_data = &dispc_compat.registered_isr[i];
+		if (isr_data->isr != isr || isr_data->arg != arg ||
+				isr_data->mask != mask)
+			continue;
+
+		/* found the correct isr */
+
+		isr_data->isr = NULL;
+		isr_data->arg = NULL;
+		isr_data->mask = 0;
+
+		ret = 0;
+		break;
+	}
+
+	if (ret == 0)
+		_omap_dispc_set_irqs();
+
+	spin_unlock_irqrestore(&dispc_compat.irq_lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(omap_dispc_unregister_isr);
+
+static void print_irq_status(u32 status)
+{
+	if ((status & dispc_compat.irq_error_mask) == 0)
+		return;
+
+#define PIS(x) (status & DISPC_IRQ_##x) ? (#x " ") : ""
+
+	pr_debug("DISPC IRQ: 0x%x: %s%s%s%s%s%s%s%s%s\n",
+		status,
+		PIS(OCP_ERR),
+		PIS(GFX_FIFO_UNDERFLOW),
+		PIS(VID1_FIFO_UNDERFLOW),
+		PIS(VID2_FIFO_UNDERFLOW),
+		dss_feat_get_num_ovls() > 3 ? PIS(VID3_FIFO_UNDERFLOW) : "",
+		PIS(SYNC_LOST),
+		PIS(SYNC_LOST_DIGIT),
+		dss_has_feature(FEAT_MGR_LCD2) ? PIS(SYNC_LOST2) : "",
+		dss_has_feature(FEAT_MGR_LCD3) ? PIS(SYNC_LOST3) : "");
+#undef PIS
+}
+
+/* Called from dss.c. Note that we don't touch clocks here,
+ * but we presume they are on because we got an IRQ. However,
+ * an irq handler may turn the clocks off, so we may not have
+ * clock later in the function. */
+static irqreturn_t omap_dispc_irq_handler(int irq, void *arg)
+{
+	int i;
+	u32 irqstatus, irqenable;
+	u32 handledirqs = 0;
+	u32 unhandled_errors;
+	struct omap_dispc_isr_data *isr_data;
+	struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
+
+	spin_lock(&dispc_compat.irq_lock);
+
+	irqstatus = dispc_read_irqstatus();
+	irqenable = dispc_read_irqenable();
+
+	/* IRQ is not for us */
+	if (!(irqstatus & irqenable)) {
+		spin_unlock(&dispc_compat.irq_lock);
+		return IRQ_NONE;
+	}
+
+#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
+	spin_lock(&dispc_compat.irq_stats_lock);
+	dispc_compat.irq_stats.irq_count++;
+	dss_collect_irq_stats(irqstatus, dispc_compat.irq_stats.irqs);
+	spin_unlock(&dispc_compat.irq_stats_lock);
+#endif
+
+	print_irq_status(irqstatus);
+
+	/* Ack the interrupt. Do it here before clocks are possibly turned
+	 * off */
+	dispc_clear_irqstatus(irqstatus);
+	/* flush posted write */
+	dispc_read_irqstatus();
+
+	/* make a copy and unlock, so that isrs can unregister
+	 * themselves */
+	memcpy(registered_isr, dispc_compat.registered_isr,
+			sizeof(registered_isr));
+
+	spin_unlock(&dispc_compat.irq_lock);
+
+	for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
+		isr_data = &registered_isr[i];
+
+		if (!isr_data->isr)
+			continue;
+
+		if (isr_data->mask & irqstatus) {
+			isr_data->isr(isr_data->arg, irqstatus);
+			handledirqs |= isr_data->mask;
+		}
+	}
+
+	spin_lock(&dispc_compat.irq_lock);
+
+	unhandled_errors = irqstatus & ~handledirqs & dispc_compat.irq_error_mask;
+
+	if (unhandled_errors) {
+		dispc_compat.error_irqs |= unhandled_errors;
+
+		dispc_compat.irq_error_mask &= ~unhandled_errors;
+		_omap_dispc_set_irqs();
+
+		schedule_work(&dispc_compat.error_work);
+	}
+
+	spin_unlock(&dispc_compat.irq_lock);
+
+	return IRQ_HANDLED;
+}
+
+static void dispc_error_worker(struct work_struct *work)
+{
+	int i;
+	u32 errors;
+	unsigned long flags;
+	static const unsigned fifo_underflow_bits[] = {
+		DISPC_IRQ_GFX_FIFO_UNDERFLOW,
+		DISPC_IRQ_VID1_FIFO_UNDERFLOW,
+		DISPC_IRQ_VID2_FIFO_UNDERFLOW,
+		DISPC_IRQ_VID3_FIFO_UNDERFLOW,
+	};
+
+	spin_lock_irqsave(&dispc_compat.irq_lock, flags);
+	errors = dispc_compat.error_irqs;
+	dispc_compat.error_irqs = 0;
+	spin_unlock_irqrestore(&dispc_compat.irq_lock, flags);
+
+	dispc_runtime_get();
+
+	for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+		struct omap_overlay *ovl;
+		unsigned bit;
+
+		ovl = omap_dss_get_overlay(i);
+		bit = fifo_underflow_bits[i];
+
+		if (bit & errors) {
+			DSSERR("FIFO UNDERFLOW on %s, disabling the overlay\n",
+					ovl->name);
+			dispc_ovl_enable(ovl->id, false);
+			dispc_mgr_go(ovl->manager->id);
+			msleep(50);
+		}
+	}
+
+	for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
+		struct omap_overlay_manager *mgr;
+		unsigned bit;
+
+		mgr = omap_dss_get_overlay_manager(i);
+		bit = dispc_mgr_get_sync_lost_irq(i);
+
+		if (bit & errors) {
+			int j;
+
+			DSSERR("SYNC_LOST on channel %s, restarting the output "
+					"with video overlays disabled\n",
+					mgr->name);
+
+			dss_mgr_disable(mgr);
+
+			for (j = 0; j < omap_dss_get_num_overlays(); ++j) {
+				struct omap_overlay *ovl;
+				ovl = omap_dss_get_overlay(j);
+
+				if (ovl->id != OMAP_DSS_GFX &&
+						ovl->manager == mgr)
+					ovl->disable(ovl);
+			}
+
+			dss_mgr_enable(mgr);
+		}
+	}
+
+	if (errors & DISPC_IRQ_OCP_ERR) {
+		DSSERR("OCP_ERR\n");
+		for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
+			struct omap_overlay_manager *mgr;
+
+			mgr = omap_dss_get_overlay_manager(i);
+			dss_mgr_disable(mgr);
+		}
+	}
+
+	spin_lock_irqsave(&dispc_compat.irq_lock, flags);
+	dispc_compat.irq_error_mask |= errors;
+	_omap_dispc_set_irqs();
+	spin_unlock_irqrestore(&dispc_compat.irq_lock, flags);
+
+	dispc_runtime_put();
+}
+
+int dss_dispc_initialize_irq(void)
+{
+	int r;
+
+#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
+	spin_lock_init(&dispc_compat.irq_stats_lock);
+	dispc_compat.irq_stats.last_reset = jiffies;
+	dss_debugfs_create_file("dispc_irq", dispc_dump_irqs);
+#endif
+
+	spin_lock_init(&dispc_compat.irq_lock);
+
+	memset(dispc_compat.registered_isr, 0,
+			sizeof(dispc_compat.registered_isr));
+
+	dispc_compat.irq_error_mask = DISPC_IRQ_MASK_ERROR;
+	if (dss_has_feature(FEAT_MGR_LCD2))
+		dispc_compat.irq_error_mask |= DISPC_IRQ_SYNC_LOST2;
+	if (dss_has_feature(FEAT_MGR_LCD3))
+		dispc_compat.irq_error_mask |= DISPC_IRQ_SYNC_LOST3;
+	if (dss_feat_get_num_ovls() > 3)
+		dispc_compat.irq_error_mask |= DISPC_IRQ_VID3_FIFO_UNDERFLOW;
+
+	/*
+	 * there's SYNC_LOST_DIGIT waiting after enabling the DSS,
+	 * so clear it
+	 */
+	dispc_clear_irqstatus(dispc_read_irqstatus());
+
+	INIT_WORK(&dispc_compat.error_work, dispc_error_worker);
+
+	_omap_dispc_set_irqs();
+
+	r = dispc_request_irq(omap_dispc_irq_handler, &dispc_compat);
+	if (r) {
+		DSSERR("dispc_request_irq failed\n");
+		return r;
+	}
+
+	return 0;
+}
+
+void dss_dispc_uninitialize_irq(void)
+{
+	dispc_free_irq(&dispc_compat);
+}
+
 static void dispc_mgr_disable_isr(void *data, u32 mask)
 {
 	struct completion *compl = data;
diff --git a/drivers/video/omap2/dss/dispc-compat.h b/drivers/video/omap2/dss/dispc-compat.h
index 8322d43d28c..14a69b3d4fb 100644
--- a/drivers/video/omap2/dss/dispc-compat.h
+++ b/drivers/video/omap2/dss/dispc-compat.h
@@ -24,4 +24,7 @@ void dispc_mgr_disable_sync(enum omap_channel channel);
 int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
 		unsigned long timeout);
 
+int dss_dispc_initialize_irq(void);
+void dss_dispc_uninitialize_irq(void);
+
 #endif
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index f7c73421402..80314bd3427 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -33,7 +33,6 @@
 #include <linux/delay.h>
 #include <linux/workqueue.h>
 #include <linux/hardirq.h>
-#include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/sizes.h>
@@ -47,21 +46,6 @@
 /* DISPC */
 #define DISPC_SZ_REGS			SZ_4K
 
-#define DISPC_IRQ_MASK_ERROR            (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \
-					 DISPC_IRQ_OCP_ERR | \
-					 DISPC_IRQ_VID1_FIFO_UNDERFLOW | \
-					 DISPC_IRQ_VID2_FIFO_UNDERFLOW | \
-					 DISPC_IRQ_SYNC_LOST | \
-					 DISPC_IRQ_SYNC_LOST_DIGIT)
-
-#define DISPC_MAX_NR_ISRS		8
-
-struct omap_dispc_isr_data {
-	omap_dispc_isr_t	isr;
-	void			*arg;
-	u32			mask;
-};
-
 enum omap_burst_size {
 	BURST_SIZE_X2 = 0,
 	BURST_SIZE_X4 = 1,
@@ -74,12 +58,6 @@ enum omap_burst_size {
 #define REG_FLD_MOD(idx, val, start, end)				\
 	dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end))
 
-struct dispc_irq_stats {
-	unsigned long last_reset;
-	unsigned irq_count;
-	unsigned irqs[32];
-};
-
 struct dispc_features {
 	u8 sw_start;
 	u8 fp_start;
@@ -124,21 +102,10 @@ static struct {
 	/* maps which plane is using a fifo. fifo-id -> plane-id */
 	int fifo_assignment[DISPC_MAX_NR_FIFOS];
 
-	spinlock_t irq_lock;
-	u32 irq_error_mask;
-	struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
-	u32 error_irqs;
-	struct work_struct error_work;
-
 	bool		ctx_valid;
 	u32		ctx[DISPC_SZ_REGS / sizeof(u32)];
 
 	const struct dispc_features *feat;
-
-#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
-	spinlock_t irq_stats_lock;
-	struct dispc_irq_stats irq_stats;
-#endif
 } dispc;
 
 enum omap_color_component {
@@ -249,7 +216,6 @@ struct color_conv_coef {
 	int full_range;
 };
 
-static void _omap_dispc_set_irqs(void);
 static unsigned long dispc_plane_pclk_rate(enum omap_plane plane);
 static unsigned long dispc_plane_lclk_rate(enum omap_plane plane);
 
@@ -3126,64 +3092,6 @@ void dispc_dump_clocks(struct seq_file *s)
 	dispc_runtime_put();
 }
 
-#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
-static void dispc_dump_irqs(struct seq_file *s)
-{
-	unsigned long flags;
-	struct dispc_irq_stats stats;
-
-	spin_lock_irqsave(&dispc.irq_stats_lock, flags);
-
-	stats = dispc.irq_stats;
-	memset(&dispc.irq_stats, 0, sizeof(dispc.irq_stats));
-	dispc.irq_stats.last_reset = jiffies;
-
-	spin_unlock_irqrestore(&dispc.irq_stats_lock, flags);
-
-	seq_printf(s, "period %u ms\n",
-			jiffies_to_msecs(jiffies - stats.last_reset));
-
-	seq_printf(s, "irqs %d\n", stats.irq_count);
-#define PIS(x) \
-	seq_printf(s, "%-20s %10d\n", #x, stats.irqs[ffs(DISPC_IRQ_##x)-1]);
-
-	PIS(FRAMEDONE);
-	PIS(VSYNC);
-	PIS(EVSYNC_EVEN);
-	PIS(EVSYNC_ODD);
-	PIS(ACBIAS_COUNT_STAT);
-	PIS(PROG_LINE_NUM);
-	PIS(GFX_FIFO_UNDERFLOW);
-	PIS(GFX_END_WIN);
-	PIS(PAL_GAMMA_MASK);
-	PIS(OCP_ERR);
-	PIS(VID1_FIFO_UNDERFLOW);
-	PIS(VID1_END_WIN);
-	PIS(VID2_FIFO_UNDERFLOW);
-	PIS(VID2_END_WIN);
-	if (dss_feat_get_num_ovls() > 3) {
-		PIS(VID3_FIFO_UNDERFLOW);
-		PIS(VID3_END_WIN);
-	}
-	PIS(SYNC_LOST);
-	PIS(SYNC_LOST_DIGIT);
-	PIS(WAKEUP);
-	if (dss_has_feature(FEAT_MGR_LCD2)) {
-		PIS(FRAMEDONE2);
-		PIS(VSYNC2);
-		PIS(ACBIAS_COUNT_STAT2);
-		PIS(SYNC_LOST2);
-	}
-	if (dss_has_feature(FEAT_MGR_LCD3)) {
-		PIS(FRAMEDONE3);
-		PIS(VSYNC3);
-		PIS(ACBIAS_COUNT_STAT3);
-		PIS(SYNC_LOST3);
-	}
-#undef PIS
-}
-#endif
-
 static void dispc_dump_regs(struct seq_file *s)
 {
 	int i, j;
@@ -3462,319 +3370,6 @@ void dispc_write_irqenable(u32 mask)
 	dispc_write_reg(DISPC_IRQENABLE, mask);
 }
 
-/* dispc.irq_lock has to be locked by the caller */
-static void _omap_dispc_set_irqs(void)
-{
-	u32 mask;
-	int i;
-	struct omap_dispc_isr_data *isr_data;
-
-	mask = dispc.irq_error_mask;
-
-	for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
-		isr_data = &dispc.registered_isr[i];
-
-		if (isr_data->isr == NULL)
-			continue;
-
-		mask |= isr_data->mask;
-	}
-
-	dispc_write_irqenable(mask);
-}
-
-int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
-{
-	int i;
-	int ret;
-	unsigned long flags;
-	struct omap_dispc_isr_data *isr_data;
-
-	if (isr == NULL)
-		return -EINVAL;
-
-	spin_lock_irqsave(&dispc.irq_lock, flags);
-
-	/* check for duplicate entry */
-	for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
-		isr_data = &dispc.registered_isr[i];
-		if (isr_data->isr == isr && isr_data->arg == arg &&
-				isr_data->mask == mask) {
-			ret = -EINVAL;
-			goto err;
-		}
-	}
-
-	isr_data = NULL;
-	ret = -EBUSY;
-
-	for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
-		isr_data = &dispc.registered_isr[i];
-
-		if (isr_data->isr != NULL)
-			continue;
-
-		isr_data->isr = isr;
-		isr_data->arg = arg;
-		isr_data->mask = mask;
-		ret = 0;
-
-		break;
-	}
-
-	if (ret)
-		goto err;
-
-	_omap_dispc_set_irqs();
-
-	spin_unlock_irqrestore(&dispc.irq_lock, flags);
-
-	return 0;
-err:
-	spin_unlock_irqrestore(&dispc.irq_lock, flags);
-
-	return ret;
-}
-EXPORT_SYMBOL(omap_dispc_register_isr);
-
-int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
-{
-	int i;
-	unsigned long flags;
-	int ret = -EINVAL;
-	struct omap_dispc_isr_data *isr_data;
-
-	spin_lock_irqsave(&dispc.irq_lock, flags);
-
-	for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
-		isr_data = &dispc.registered_isr[i];
-		if (isr_data->isr != isr || isr_data->arg != arg ||
-				isr_data->mask != mask)
-			continue;
-
-		/* found the correct isr */
-
-		isr_data->isr = NULL;
-		isr_data->arg = NULL;
-		isr_data->mask = 0;
-
-		ret = 0;
-		break;
-	}
-
-	if (ret == 0)
-		_omap_dispc_set_irqs();
-
-	spin_unlock_irqrestore(&dispc.irq_lock, flags);
-
-	return ret;
-}
-EXPORT_SYMBOL(omap_dispc_unregister_isr);
-
-static void print_irq_status(u32 status)
-{
-	if ((status & dispc.irq_error_mask) == 0)
-		return;
-
-#define PIS(x) (status & DISPC_IRQ_##x) ? (#x " ") : ""
-
-	pr_debug("DISPC IRQ: 0x%x: %s%s%s%s%s%s%s%s%s\n",
-		status,
-		PIS(OCP_ERR),
-		PIS(GFX_FIFO_UNDERFLOW),
-		PIS(VID1_FIFO_UNDERFLOW),
-		PIS(VID2_FIFO_UNDERFLOW),
-		dss_feat_get_num_ovls() > 3 ? PIS(VID3_FIFO_UNDERFLOW) : "",
-		PIS(SYNC_LOST),
-		PIS(SYNC_LOST_DIGIT),
-		dss_has_feature(FEAT_MGR_LCD2) ? PIS(SYNC_LOST2) : "",
-		dss_has_feature(FEAT_MGR_LCD3) ? PIS(SYNC_LOST3) : "");
-#undef PIS
-}
-
-/* Called from dss.c. Note that we don't touch clocks here,
- * but we presume they are on because we got an IRQ. However,
- * an irq handler may turn the clocks off, so we may not have
- * clock later in the function. */
-static irqreturn_t omap_dispc_irq_handler(int irq, void *arg)
-{
-	int i;
-	u32 irqstatus, irqenable;
-	u32 handledirqs = 0;
-	u32 unhandled_errors;
-	struct omap_dispc_isr_data *isr_data;
-	struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
-
-	spin_lock(&dispc.irq_lock);
-
-	irqstatus = dispc_read_irqstatus();
-	irqenable = dispc_read_irqenable();
-
-	/* IRQ is not for us */
-	if (!(irqstatus & irqenable)) {
-		spin_unlock(&dispc.irq_lock);
-		return IRQ_NONE;
-	}
-
-#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
-	spin_lock(&dispc.irq_stats_lock);
-	dispc.irq_stats.irq_count++;
-	dss_collect_irq_stats(irqstatus, dispc.irq_stats.irqs);
-	spin_unlock(&dispc.irq_stats_lock);
-#endif
-
-	print_irq_status(irqstatus);
-
-	/* Ack the interrupt. Do it here before clocks are possibly turned
-	 * off */
-	dispc_clear_irqstatus(irqstatus);
-	/* flush posted write */
-	dispc_read_irqstatus();
-
-	/* make a copy and unlock, so that isrs can unregister
-	 * themselves */
-	memcpy(registered_isr, dispc.registered_isr,
-			sizeof(registered_isr));
-
-	spin_unlock(&dispc.irq_lock);
-
-	for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
-		isr_data = &registered_isr[i];
-
-		if (!isr_data->isr)
-			continue;
-
-		if (isr_data->mask & irqstatus) {
-			isr_data->isr(isr_data->arg, irqstatus);
-			handledirqs |= isr_data->mask;
-		}
-	}
-
-	spin_lock(&dispc.irq_lock);
-
-	unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask;
-
-	if (unhandled_errors) {
-		dispc.error_irqs |= unhandled_errors;
-
-		dispc.irq_error_mask &= ~unhandled_errors;
-		_omap_dispc_set_irqs();
-
-		schedule_work(&dispc.error_work);
-	}
-
-	spin_unlock(&dispc.irq_lock);
-
-	return IRQ_HANDLED;
-}
-
-static void dispc_error_worker(struct work_struct *work)
-{
-	int i;
-	u32 errors;
-	unsigned long flags;
-	static const unsigned fifo_underflow_bits[] = {
-		DISPC_IRQ_GFX_FIFO_UNDERFLOW,
-		DISPC_IRQ_VID1_FIFO_UNDERFLOW,
-		DISPC_IRQ_VID2_FIFO_UNDERFLOW,
-		DISPC_IRQ_VID3_FIFO_UNDERFLOW,
-	};
-
-	spin_lock_irqsave(&dispc.irq_lock, flags);
-	errors = dispc.error_irqs;
-	dispc.error_irqs = 0;
-	spin_unlock_irqrestore(&dispc.irq_lock, flags);
-
-	dispc_runtime_get();
-
-	for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
-		struct omap_overlay *ovl;
-		unsigned bit;
-
-		ovl = omap_dss_get_overlay(i);
-		bit = fifo_underflow_bits[i];
-
-		if (bit & errors) {
-			DSSERR("FIFO UNDERFLOW on %s, disabling the overlay\n",
-					ovl->name);
-			dispc_ovl_enable(ovl->id, false);
-			dispc_mgr_go(ovl->manager->id);
-			msleep(50);
-		}
-	}
-
-	for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
-		struct omap_overlay_manager *mgr;
-		unsigned bit;
-
-		mgr = omap_dss_get_overlay_manager(i);
-		bit = mgr_desc[i].sync_lost_irq;
-
-		if (bit & errors) {
-			int j;
-
-			DSSERR("SYNC_LOST on channel %s, restarting the output "
-					"with video overlays disabled\n",
-					mgr->name);
-
-			dss_mgr_disable(mgr);
-
-			for (j = 0; j < omap_dss_get_num_overlays(); ++j) {
-				struct omap_overlay *ovl;
-				ovl = omap_dss_get_overlay(j);
-
-				if (ovl->id != OMAP_DSS_GFX &&
-						ovl->manager == mgr)
-					ovl->disable(ovl);
-			}
-
-			dss_mgr_enable(mgr);
-		}
-	}
-
-	if (errors & DISPC_IRQ_OCP_ERR) {
-		DSSERR("OCP_ERR\n");
-		for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
-			struct omap_overlay_manager *mgr;
-
-			mgr = omap_dss_get_overlay_manager(i);
-			dss_mgr_disable(mgr);
-		}
-	}
-
-	spin_lock_irqsave(&dispc.irq_lock, flags);
-	dispc.irq_error_mask |= errors;
-	_omap_dispc_set_irqs();
-	spin_unlock_irqrestore(&dispc.irq_lock, flags);
-
-	dispc_runtime_put();
-}
-
-static void _omap_dispc_initialize_irq(void)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&dispc.irq_lock, flags);
-
-	memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr));
-
-	dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
-	if (dss_has_feature(FEAT_MGR_LCD2))
-		dispc.irq_error_mask |= DISPC_IRQ_SYNC_LOST2;
-	if (dss_has_feature(FEAT_MGR_LCD3))
-		dispc.irq_error_mask |= DISPC_IRQ_SYNC_LOST3;
-	if (dss_feat_get_num_ovls() > 3)
-		dispc.irq_error_mask |= DISPC_IRQ_VID3_FIFO_UNDERFLOW;
-
-	/* there's SYNC_LOST_DIGIT waiting after enabling the DSS,
-	 * so clear it */
-	dispc_clear_irqstatus(dispc_read_irqstatus());
-
-	_omap_dispc_set_irqs();
-
-	spin_unlock_irqrestore(&dispc.irq_lock, flags);
-}
-
 void dispc_enable_sidle(void)
 {
 	REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3);	/* SIDLEMODE: smart idle */
@@ -3944,6 +3539,17 @@ static int __init dispc_init_features(struct platform_device *pdev)
 	return 0;
 }
 
+int dispc_request_irq(irq_handler_t handler, void *dev_id)
+{
+	return devm_request_irq(&dispc.pdev->dev, dispc.irq, handler,
+			     IRQF_SHARED, "OMAP DISPC", dev_id);
+}
+
+void dispc_free_irq(void *dev_id)
+{
+	devm_free_irq(&dispc.pdev->dev, dispc.irq, dev_id);
+}
+
 /* DISPC HW IP initialisation */
 static int __init omap_dispchw_probe(struct platform_device *pdev)
 {
@@ -3958,15 +3564,6 @@ static int __init omap_dispchw_probe(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	spin_lock_init(&dispc.irq_lock);
-
-#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
-	spin_lock_init(&dispc.irq_stats_lock);
-	dispc.irq_stats.last_reset = jiffies;
-#endif
-
-	INIT_WORK(&dispc.error_work, dispc_error_worker);
-
 	dispc_mem = platform_get_resource(dispc.pdev, IORESOURCE_MEM, 0);
 	if (!dispc_mem) {
 		DSSERR("can't get IORESOURCE_MEM DISPC\n");
@@ -3986,13 +3583,6 @@ static int __init omap_dispchw_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	r = devm_request_irq(&pdev->dev, dispc.irq, omap_dispc_irq_handler,
-			     IRQF_SHARED, "OMAP DISPC", dispc.pdev);
-	if (r < 0) {
-		DSSERR("request_irq failed\n");
-		return r;
-	}
-
 	clk = clk_get(&pdev->dev, "fck");
 	if (IS_ERR(clk)) {
 		DSSERR("can't get fck\n");
@@ -4010,8 +3600,6 @@ static int __init omap_dispchw_probe(struct platform_device *pdev)
 
 	_omap_dispc_initial_config();
 
-	_omap_dispc_initialize_irq();
-
 	rev = dispc_read_reg(DISPC_REVISION);
 	dev_dbg(&pdev->dev, "OMAP DISPC rev %d.%d\n",
 	       FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
@@ -4020,9 +3608,6 @@ static int __init omap_dispchw_probe(struct platform_device *pdev)
 
 	dss_debugfs_create_file("dispc", dispc_dump_regs);
 
-#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
-	dss_debugfs_create_file("dispc_irq", dispc_dump_irqs);
-#endif
 	return 0;
 
 err_runtime_get:
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 9faaa63d308..2754bcb231d 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -23,6 +23,8 @@
 #ifndef __OMAP2_DSS_H
 #define __OMAP2_DSS_H
 
+#include <linux/interrupt.h>
+
 #ifdef pr_fmt
 #undef pr_fmt
 #endif
@@ -386,6 +388,9 @@ void dispc_clear_irqstatus(u32 mask);
 u32 dispc_read_irqenable(void);
 void dispc_write_irqenable(u32 mask);
 
+int dispc_request_irq(irq_handler_t handler, void *dev_id);
+void dispc_free_irq(void *dev_id);
+
 int dispc_runtime_get(void);
 void dispc_runtime_put(void);
 
-- 
cgit v1.2.3


From f9b719b6c25c0609c528ccc1e881b42373ba1ba3 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 19 Oct 2012 15:57:11 +0300
Subject: OMAPDSS: DISPC: add dispc_ovl_check()

This patch adds a new function, dispc_ovl_check(), which can be used to
verify scaling configuration for an overlay. The function gets both the
overlay and overlay manager as parameters, so that the caller does not
need to configure the hardware before using this function.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 40 ++++++++++++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/dss.h   |  4 ++++
 2 files changed, 44 insertions(+)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 80314bd3427..67548839ff5 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2320,6 +2320,46 @@ static int dispc_ovl_calc_scaling(unsigned long pclk, unsigned long lclk,
 	return 0;
 }
 
+int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
+		const struct omap_overlay_info *oi,
+		const struct omap_video_timings *timings,
+		int *x_predecim, int *y_predecim)
+{
+	enum omap_overlay_caps caps = dss_feat_get_overlay_caps(plane);
+	bool five_taps = true;
+	bool fieldmode = 0;
+	u16 in_height = oi->height;
+	u16 in_width = oi->width;
+	bool ilace = timings->interlace;
+	u16 out_width, out_height;
+	int pos_x = oi->pos_x;
+	unsigned long pclk = dispc_mgr_pclk_rate(channel);
+	unsigned long lclk = dispc_mgr_lclk_rate(channel);
+
+	out_width = oi->out_width == 0 ? oi->width : oi->out_width;
+	out_height = oi->out_height == 0 ? oi->height : oi->out_height;
+
+	if (ilace && oi->height == out_height)
+		fieldmode = 1;
+
+	if (ilace) {
+		if (fieldmode)
+			in_height /= 2;
+		out_height /= 2;
+
+		DSSDBG("adjusting for ilace: height %d, out_height %d\n",
+				in_height, out_height);
+	}
+
+	if (!dss_feat_color_mode_supported(plane, oi->color_mode))
+		return -EINVAL;
+
+	return dispc_ovl_calc_scaling(pclk, lclk, caps, timings, in_width,
+			in_height, out_width, out_height, oi->color_mode,
+			&five_taps, x_predecim, y_predecim, pos_x,
+			oi->rotation_type, false);
+}
+
 static int dispc_ovl_setup_common(enum omap_plane plane,
 		enum omap_overlay_caps caps, u32 paddr, u32 p_uv_addr,
 		u16 screen_width, int pos_x, int pos_y, u16 width, u16 height,
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 2754bcb231d..180b381fd12 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -423,6 +423,10 @@ int dispc_ovl_enable(enum omap_plane plane, bool enable);
 bool dispc_ovl_enabled(enum omap_plane plane);
 void dispc_ovl_set_channel_out(enum omap_plane plane,
 		enum omap_channel channel);
+int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
+		const struct omap_overlay_info *oi,
+		const struct omap_video_timings *timings,
+		int *x_predecim, int *y_predecim);
 
 u32 dispc_mgr_get_vsync_irq(enum omap_channel channel);
 u32 dispc_mgr_get_framedone_irq(enum omap_channel channel);
-- 
cgit v1.2.3


From 8b09551338dbe1882d3d52dcc5d34ef933adbccf Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 24 Oct 2012 13:27:02 +0300
Subject: OMAPDSS: DPI: use dispc's check_timings

dpi.c uses dss_mgr_check_timings() to verify video timings, but that
function is in the compat layer. Change dpi.c to use the dispc's check
instead.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index d5bc47a4f3e..6cbcc81991a 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -315,7 +315,7 @@ int dpi_check_timings(struct omap_dss_device *dssdev,
 	unsigned long pck;
 	struct dispc_clock_info dispc_cinfo;
 
-	if (dss_mgr_check_timings(mgr, timings))
+	if (mgr && !dispc_mgr_timings_ok(mgr->id, timings))
 		return -EINVAL;
 
 	if (timings->pixel_clock == 0)
-- 
cgit v1.2.3


From 09e82ba7011d6e94bf1eeb3f1cd0b7d441263132 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 8 Nov 2012 14:11:29 +0200
Subject: OMAPDSS: move display sysfs init to compat layer

Move creation of the sysfs files for displays to the compat layer.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 14 ++++++++++++++
 drivers/video/omap2/dss/core.c    |  7 -------
 drivers/video/omap2/dss/display.c | 20 --------------------
 drivers/video/omap2/dss/dss.h     |  5 -----
 4 files changed, 14 insertions(+), 32 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 29e11434b7d..d446bdfc4c8 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -1562,6 +1562,7 @@ static DEFINE_MUTEX(compat_init_lock);
 int omapdss_compat_init(void)
 {
 	struct platform_device *pdev = dss_get_core_pdev();
+	struct omap_dss_device *dssdev = NULL;
 	int i, r;
 
 	mutex_lock(&compat_init_lock);
@@ -1607,6 +1608,13 @@ int omapdss_compat_init(void)
 	if (r)
 		goto err_mgr_ops;
 
+	for_each_dss_dev(dssdev) {
+		r = display_init_sysfs(pdev, dssdev);
+		/* XXX uninit sysfs files on error */
+		if (r)
+			goto err_disp_sysfs;
+	}
+
 	dispc_runtime_get();
 
 	r = dss_dispc_initialize_irq();
@@ -1622,6 +1630,8 @@ out:
 
 err_init_irq:
 	dispc_runtime_put();
+
+err_disp_sysfs:
 	dss_uninstall_mgr_ops();
 
 err_mgr_ops:
@@ -1639,6 +1649,7 @@ EXPORT_SYMBOL(omapdss_compat_init);
 void omapdss_compat_uninit(void)
 {
 	struct platform_device *pdev = dss_get_core_pdev();
+	struct omap_dss_device *dssdev = NULL;
 
 	mutex_lock(&compat_init_lock);
 
@@ -1647,6 +1658,9 @@ void omapdss_compat_uninit(void)
 
 	dss_dispc_uninitialize_irq();
 
+	for_each_dss_dev(dssdev)
+		display_uninit_sysfs(pdev, dssdev);
+
 	dss_uninstall_mgr_ops();
 
 	dss_uninit_overlay_managers(pdev);
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 1751c1f511a..50817fe18cf 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -347,15 +347,10 @@ static int dss_driver_probe(struct device *dev)
 				dev_name(dev), dssdev->driver_name,
 				dssdrv->driver.name);
 
-	r = dss_init_device(core.pdev, dssdev);
-	if (r)
-		return r;
-
 	r = dssdrv->probe(dssdev);
 
 	if (r) {
 		DSSERR("driver probe failed: %d\n", r);
-		dss_uninit_device(core.pdev, dssdev);
 		return r;
 	}
 
@@ -376,8 +371,6 @@ static int dss_driver_remove(struct device *dev)
 
 	dssdrv->remove(dssdev);
 
-	dss_uninit_device(core.pdev, dssdev);
-
 	dssdev->driver = NULL;
 
 	return 0;
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index 05f21b6231b..0aa8ad8f966 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -76,26 +76,6 @@ void omapdss_default_get_timings(struct omap_dss_device *dssdev,
 }
 EXPORT_SYMBOL(omapdss_default_get_timings);
 
-int dss_init_device(struct platform_device *pdev,
-		struct omap_dss_device *dssdev)
-{
-	int r;
-
-	r = display_init_sysfs(pdev, dssdev);
-	if (r) {
-		omapdss_output_unset_device(dssdev->output);
-		return r;
-	}
-
-	return 0;
-}
-
-void dss_uninit_device(struct platform_device *pdev,
-		struct omap_dss_device *dssdev)
-{
-	display_uninit_sysfs(pdev, dssdev);
-}
-
 static int dss_suspend_device(struct device *dev, void *data)
 {
 	struct omap_dss_device *dssdev = to_dss_device(dev);
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 180b381fd12..8c89cdda96d 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -201,11 +201,6 @@ int dss_suspend_all_devices(void);
 int dss_resume_all_devices(void);
 void dss_disable_all_devices(void);
 
-int dss_init_device(struct platform_device *pdev,
-		struct omap_dss_device *dssdev);
-void dss_uninit_device(struct platform_device *pdev,
-		struct omap_dss_device *dssdev);
-
 int display_init_sysfs(struct platform_device *pdev,
 		struct omap_dss_device *dssdev);
 void display_uninit_sysfs(struct platform_device *pdev,
-- 
cgit v1.2.3


From d13f5b7d98eebe59112ca3d92763000c306872e4 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 24 Oct 2012 13:29:00 +0300
Subject: OMAPDSS: separate compat files in the Makefile

Separate the core DSS files and compat layer files in the Makefile for
clarity.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index c834f9c4200..61949ff7940 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -1,7 +1,10 @@
 obj-$(CONFIG_OMAP2_DSS) += omapdss.o
+# Core DSS files
 omapdss-y := core.o dss.o dss_features.o dispc.o dispc_coefs.o display.o \
-	manager.o manager-sysfs.o overlay.o overlay-sysfs.o output.o apply.o \
-	display-sysfs.o dispc-compat.o
+	output.o
+# DSS compat layer files
+omapdss-y += manager.o manager-sysfs.o overlay.o overlay-sysfs.o apply.o \
+	dispc-compat.o display-sysfs.o
 omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o
 omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o venc_panel.o
-- 
cgit v1.2.3


From a97a96347598201ae39b5aee67638dae2cebe454 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 24 Oct 2012 13:52:40 +0300
Subject: OMAPDSS: export dss_mgr_ops functions

Export dss_mgr_ops related functions.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.h    | 30 ------------------------------
 drivers/video/omap2/dss/output.c |  9 +++++++++
 include/video/omapdss.h          | 29 +++++++++++++++++++++++++++++
 3 files changed, 38 insertions(+), 30 deletions(-)

diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 8c89cdda96d..1d8483cbe39 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -179,19 +179,6 @@ void dss_put_device(struct omap_dss_device *dssdev);
 void dss_copy_device_pdata(struct omap_dss_device *dst,
 		const struct omap_dss_device *src);
 
-/* apply */
-void dss_mgr_start_update(struct omap_overlay_manager *mgr);
-int dss_mgr_enable(struct omap_overlay_manager *mgr);
-void dss_mgr_disable(struct omap_overlay_manager *mgr);
-void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
-		const struct omap_video_timings *timings);
-void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
-		const struct dss_lcd_mgr_config *config);
-int dss_mgr_register_framedone_handler(struct omap_overlay_manager *mgr,
-		void (*handler)(void *), void *data);
-void dss_mgr_unregister_framedone_handler(struct omap_overlay_manager *mgr,
-		void (*handler)(void *), void *data);
-
 /* output */
 void dss_register_output(struct omap_dss_output *out);
 void dss_unregister_output(struct omap_dss_output *out);
@@ -529,21 +516,4 @@ static inline void dss_collect_irq_stats(u32 irqstatus, unsigned *irq_arr)
 }
 #endif
 
-struct dss_mgr_ops {
-	void (*start_update)(struct omap_overlay_manager *mgr);
-	int (*enable)(struct omap_overlay_manager *mgr);
-	void (*disable)(struct omap_overlay_manager *mgr);
-	void (*set_timings)(struct omap_overlay_manager *mgr,
-			const struct omap_video_timings *timings);
-	void (*set_lcd_config)(struct omap_overlay_manager *mgr,
-			const struct dss_lcd_mgr_config *config);
-	int (*register_framedone_handler)(struct omap_overlay_manager *mgr,
-			void (*handler)(void *), void *data);
-	void (*unregister_framedone_handler)(struct omap_overlay_manager *mgr,
-			void (*handler)(void *), void *data);
-};
-
-int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops);
-void dss_uninstall_mgr_ops(void);
-
 #endif
diff --git a/drivers/video/omap2/dss/output.c b/drivers/video/omap2/dss/output.c
index 6def0d7bbd0..79dea1a1a73 100644
--- a/drivers/video/omap2/dss/output.c
+++ b/drivers/video/omap2/dss/output.c
@@ -125,47 +125,56 @@ int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops)
 
 	return 0;
 }
+EXPORT_SYMBOL(dss_install_mgr_ops);
 
 void dss_uninstall_mgr_ops(void)
 {
 	dss_mgr_ops = NULL;
 }
+EXPORT_SYMBOL(dss_uninstall_mgr_ops);
 
 void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
 		const struct omap_video_timings *timings)
 {
 	dss_mgr_ops->set_timings(mgr, timings);
 }
+EXPORT_SYMBOL(dss_mgr_set_timings);
 
 void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
 		const struct dss_lcd_mgr_config *config)
 {
 	dss_mgr_ops->set_lcd_config(mgr, config);
 }
+EXPORT_SYMBOL(dss_mgr_set_lcd_config);
 
 int dss_mgr_enable(struct omap_overlay_manager *mgr)
 {
 	return dss_mgr_ops->enable(mgr);
 }
+EXPORT_SYMBOL(dss_mgr_enable);
 
 void dss_mgr_disable(struct omap_overlay_manager *mgr)
 {
 	dss_mgr_ops->disable(mgr);
 }
+EXPORT_SYMBOL(dss_mgr_disable);
 
 void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 {
 	dss_mgr_ops->start_update(mgr);
 }
+EXPORT_SYMBOL(dss_mgr_start_update);
 
 int dss_mgr_register_framedone_handler(struct omap_overlay_manager *mgr,
 		void (*handler)(void *), void *data)
 {
 	return dss_mgr_ops->register_framedone_handler(mgr, handler, data);
 }
+EXPORT_SYMBOL(dss_mgr_register_framedone_handler);
 
 void dss_mgr_unregister_framedone_handler(struct omap_overlay_manager *mgr,
 		void (*handler)(void *), void *data)
 {
 	dss_mgr_ops->unregister_framedone_handler(mgr, handler, data);
 }
+EXPORT_SYMBOL(dss_mgr_unregister_framedone_handler);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 823a07b00fe..d1bf3bc54db 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -55,6 +55,7 @@
 
 struct omap_dss_device;
 struct omap_overlay_manager;
+struct dss_lcd_mgr_config;
 struct snd_aes_iec958;
 struct snd_cea_861_aud_if;
 
@@ -835,4 +836,32 @@ void omapdss_rfbi_set_interface_timings(struct omap_dss_device *dssdev,
 int omapdss_compat_init(void);
 void omapdss_compat_uninit(void);
 
+struct dss_mgr_ops {
+	void (*start_update)(struct omap_overlay_manager *mgr);
+	int (*enable)(struct omap_overlay_manager *mgr);
+	void (*disable)(struct omap_overlay_manager *mgr);
+	void (*set_timings)(struct omap_overlay_manager *mgr,
+			const struct omap_video_timings *timings);
+	void (*set_lcd_config)(struct omap_overlay_manager *mgr,
+			const struct dss_lcd_mgr_config *config);
+	int (*register_framedone_handler)(struct omap_overlay_manager *mgr,
+			void (*handler)(void *), void *data);
+	void (*unregister_framedone_handler)(struct omap_overlay_manager *mgr,
+			void (*handler)(void *), void *data);
+};
+
+int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops);
+void dss_uninstall_mgr_ops(void);
+
+void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
+		const struct omap_video_timings *timings);
+void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
+		const struct dss_lcd_mgr_config *config);
+int dss_mgr_enable(struct omap_overlay_manager *mgr);
+void dss_mgr_disable(struct omap_overlay_manager *mgr);
+void dss_mgr_start_update(struct omap_overlay_manager *mgr);
+int dss_mgr_register_framedone_handler(struct omap_overlay_manager *mgr,
+		void (*handler)(void *), void *data);
+void dss_mgr_unregister_framedone_handler(struct omap_overlay_manager *mgr,
+		void (*handler)(void *), void *data);
 #endif
-- 
cgit v1.2.3


From eda34273631a9c4bae65eb49394549f6007f2fb8 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 7 Nov 2012 16:26:11 +0200
Subject: OMAPDSS: export dss_feat functions

Export dss_features related functions.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss_features.c | 6 ++++++
 drivers/video/omap2/dss/dss_features.h | 5 -----
 include/video/omapdss.h                | 8 ++++++++
 3 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 1d125c6bfd1..18688c12e30 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -18,6 +18,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/types.h>
 #include <linux/err.h>
 #include <linux/slab.h>
@@ -839,11 +840,13 @@ int dss_feat_get_num_mgrs(void)
 {
 	return omap_current_dss_features->num_mgrs;
 }
+EXPORT_SYMBOL(dss_feat_get_num_mgrs);
 
 int dss_feat_get_num_ovls(void)
 {
 	return omap_current_dss_features->num_ovls;
 }
+EXPORT_SYMBOL(dss_feat_get_num_ovls);
 
 int dss_feat_get_num_wbs(void)
 {
@@ -864,16 +867,19 @@ enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel
 {
 	return omap_current_dss_features->supported_displays[channel];
 }
+EXPORT_SYMBOL(dss_feat_get_supported_displays);
 
 enum omap_dss_output_id dss_feat_get_supported_outputs(enum omap_channel channel)
 {
 	return omap_current_dss_features->supported_outputs[channel];
 }
+EXPORT_SYMBOL(dss_feat_get_supported_outputs);
 
 enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane)
 {
 	return omap_current_dss_features->supported_color_modes[plane];
 }
+EXPORT_SYMBOL(dss_feat_get_supported_color_modes);
 
 enum omap_overlay_caps dss_feat_get_overlay_caps(enum omap_plane plane)
 {
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index 385b0afe63c..489b9bec4a6 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -101,14 +101,9 @@ enum dss_range_param {
 };
 
 /* DSS Feature Functions */
-int dss_feat_get_num_mgrs(void);
-int dss_feat_get_num_ovls(void);
 int dss_feat_get_num_wbs(void);
 unsigned long dss_feat_get_param_min(enum dss_range_param param);
 unsigned long dss_feat_get_param_max(enum dss_range_param param);
-enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel);
-enum omap_dss_output_id dss_feat_get_supported_outputs(enum omap_channel channel);
-enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane);
 enum omap_overlay_caps dss_feat_get_overlay_caps(enum omap_plane plane);
 bool dss_feat_color_mode_supported(enum omap_plane plane,
 		enum omap_color_mode color_mode);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index d1bf3bc54db..8c9df486727 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -755,6 +755,14 @@ const char *omapdss_get_default_display_name(void);
 int omap_dss_start_device(struct omap_dss_device *dssdev);
 void omap_dss_stop_device(struct omap_dss_device *dssdev);
 
+int dss_feat_get_num_mgrs(void);
+int dss_feat_get_num_ovls(void);
+enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel);
+enum omap_dss_output_id dss_feat_get_supported_outputs(enum omap_channel channel);
+enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane);
+
+
+
 int omap_dss_get_num_overlay_managers(void);
 struct omap_overlay_manager *omap_dss_get_overlay_manager(int num);
 
-- 
cgit v1.2.3


From 348be69d306260c9bcb62662c4cf04196a2b9f53 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 7 Nov 2012 18:17:35 +0200
Subject: OMAPDSS: export dispc functions

Export DISPC functions.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 23 +++++++++++++++++++++++
 drivers/video/omap2/dss/dss.h   | 36 +-----------------------------------
 include/video/omapdss.h         | 39 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 63 insertions(+), 35 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 67548839ff5..fedbd2c8e97 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -494,6 +494,7 @@ int dispc_runtime_get(void)
 	WARN_ON(r < 0);
 	return r < 0 ? r : 0;
 }
+EXPORT_SYMBOL(dispc_runtime_get);
 
 void dispc_runtime_put(void)
 {
@@ -504,11 +505,13 @@ void dispc_runtime_put(void)
 	r = pm_runtime_put_sync(&dispc.pdev->dev);
 	WARN_ON(r < 0 && r != -ENOSYS);
 }
+EXPORT_SYMBOL(dispc_runtime_put);
 
 u32 dispc_mgr_get_vsync_irq(enum omap_channel channel)
 {
 	return mgr_desc[channel].vsync_irq;
 }
+EXPORT_SYMBOL(dispc_mgr_get_vsync_irq);
 
 u32 dispc_mgr_get_framedone_irq(enum omap_channel channel)
 {
@@ -517,11 +520,13 @@ u32 dispc_mgr_get_framedone_irq(enum omap_channel channel)
 
 	return mgr_desc[channel].framedone_irq;
 }
+EXPORT_SYMBOL(dispc_mgr_get_framedone_irq);
 
 u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel)
 {
 	return mgr_desc[channel].sync_lost_irq;
 }
+EXPORT_SYMBOL(dispc_mgr_get_sync_lost_irq);
 
 u32 dispc_wb_get_framedone_irq(void)
 {
@@ -532,6 +537,7 @@ bool dispc_mgr_go_busy(enum omap_channel channel)
 {
 	return mgr_fld_read(channel, DISPC_MGR_FLD_GO) == 1;
 }
+EXPORT_SYMBOL(dispc_mgr_go_busy);
 
 void dispc_mgr_go(enum omap_channel channel)
 {
@@ -542,6 +548,7 @@ void dispc_mgr_go(enum omap_channel channel)
 
 	mgr_fld_write(channel, DISPC_MGR_FLD_GO, 1);
 }
+EXPORT_SYMBOL(dispc_mgr_go);
 
 bool dispc_wb_go_busy(void)
 {
@@ -945,6 +952,7 @@ void dispc_ovl_set_channel_out(enum omap_plane plane, enum omap_channel channel)
 	}
 	dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), val);
 }
+EXPORT_SYMBOL(dispc_ovl_set_channel_out);
 
 static enum omap_channel dispc_ovl_get_channel_out(enum omap_plane plane)
 {
@@ -2359,6 +2367,7 @@ int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
 			&five_taps, x_predecim, y_predecim, pos_x,
 			oi->rotation_type, false);
 }
+EXPORT_SYMBOL(dispc_ovl_check);
 
 static int dispc_ovl_setup_common(enum omap_plane plane,
 		enum omap_overlay_caps caps, u32 paddr, u32 p_uv_addr,
@@ -2539,6 +2548,7 @@ int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
 
 	return r;
 }
+EXPORT_SYMBOL(dispc_ovl_setup);
 
 int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
 		bool mem_to_mem, const struct omap_video_timings *mgr_timings)
@@ -2599,11 +2609,13 @@ int dispc_ovl_enable(enum omap_plane plane, bool enable)
 
 	return 0;
 }
+EXPORT_SYMBOL(dispc_ovl_enable);
 
 bool dispc_ovl_enabled(enum omap_plane plane)
 {
 	return REG_GET(DISPC_OVL_ATTRIBUTES(plane), 0, 0);
 }
+EXPORT_SYMBOL(dispc_ovl_enabled);
 
 void dispc_mgr_enable(enum omap_channel channel, bool enable)
 {
@@ -2611,11 +2623,13 @@ void dispc_mgr_enable(enum omap_channel channel, bool enable)
 	/* flush posted write */
 	mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE);
 }
+EXPORT_SYMBOL(dispc_mgr_enable);
 
 bool dispc_mgr_is_enabled(enum omap_channel channel)
 {
 	return !!mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE);
 }
+EXPORT_SYMBOL(dispc_mgr_is_enabled);
 
 void dispc_wb_enable(bool enable)
 {
@@ -2712,6 +2726,7 @@ void dispc_mgr_setup(enum omap_channel channel,
 		dispc_mgr_set_cpr_coef(channel, &info->cpr_coefs);
 	}
 }
+EXPORT_SYMBOL(dispc_mgr_setup);
 
 static void dispc_mgr_set_tft_data_lines(enum omap_channel channel, u8 data_lines)
 {
@@ -2788,6 +2803,7 @@ void dispc_mgr_set_lcd_config(enum omap_channel channel,
 
 	dispc_mgr_set_lcd_type_tft(channel);
 }
+EXPORT_SYMBOL(dispc_mgr_set_lcd_config);
 
 static bool _dispc_mgr_size_ok(u16 width, u16 height)
 {
@@ -2926,6 +2942,7 @@ void dispc_mgr_set_timings(enum omap_channel channel,
 
 	dispc_mgr_set_size(channel, t.x_res, t.y_res);
 }
+EXPORT_SYMBOL(dispc_mgr_set_timings);
 
 static void dispc_mgr_set_lcd_divisor(enum omap_channel channel, u16 lck_div,
 		u16 pck_div)
@@ -3389,16 +3406,19 @@ u32 dispc_read_irqstatus(void)
 {
 	return dispc_read_reg(DISPC_IRQSTATUS);
 }
+EXPORT_SYMBOL(dispc_read_irqstatus);
 
 void dispc_clear_irqstatus(u32 mask)
 {
 	dispc_write_reg(DISPC_IRQSTATUS, mask);
 }
+EXPORT_SYMBOL(dispc_clear_irqstatus);
 
 u32 dispc_read_irqenable(void)
 {
 	return dispc_read_reg(DISPC_IRQENABLE);
 }
+EXPORT_SYMBOL(dispc_read_irqenable);
 
 void dispc_write_irqenable(u32 mask)
 {
@@ -3409,6 +3429,7 @@ void dispc_write_irqenable(u32 mask)
 
 	dispc_write_reg(DISPC_IRQENABLE, mask);
 }
+EXPORT_SYMBOL(dispc_write_irqenable);
 
 void dispc_enable_sidle(void)
 {
@@ -3584,11 +3605,13 @@ int dispc_request_irq(irq_handler_t handler, void *dev_id)
 	return devm_request_irq(&dispc.pdev->dev, dispc.irq, handler,
 			     IRQF_SHARED, "OMAP DISPC", dev_id);
 }
+EXPORT_SYMBOL(dispc_request_irq);
 
 void dispc_free_irq(void *dev_id)
 {
 	devm_free_irq(&dispc.pdev->dev, dispc.irq, dev_id);
 }
+EXPORT_SYMBOL(dispc_free_irq);
 
 /* DISPC HW IP initialisation */
 static int __init omap_dispchw_probe(struct platform_device *pdev)
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 1d8483cbe39..ebe9e08b2a9 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -365,16 +365,6 @@ void dpi_uninit_platform_driver(void) __exit;
 int dispc_init_platform_driver(void) __init;
 void dispc_uninit_platform_driver(void) __exit;
 void dispc_dump_clocks(struct seq_file *s);
-u32 dispc_read_irqstatus(void);
-void dispc_clear_irqstatus(u32 mask);
-u32 dispc_read_irqenable(void);
-void dispc_write_irqenable(u32 mask);
-
-int dispc_request_irq(irq_handler_t handler, void *dev_id);
-void dispc_free_irq(void *dev_id);
-
-int dispc_runtime_get(void);
-void dispc_runtime_put(void);
 
 void dispc_enable_sidle(void);
 void dispc_disable_sidle(void);
@@ -398,29 +388,7 @@ void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high);
 void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane,
 		u32 *fifo_low, u32 *fifo_high, bool use_fifomerge,
 		bool manual_update);
-int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
-		bool replication, const struct omap_video_timings *mgr_timings,
-		bool mem_to_mem);
-int dispc_ovl_enable(enum omap_plane plane, bool enable);
-bool dispc_ovl_enabled(enum omap_plane plane);
-void dispc_ovl_set_channel_out(enum omap_plane plane,
-		enum omap_channel channel);
-int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
-		const struct omap_overlay_info *oi,
-		const struct omap_video_timings *timings,
-		int *x_predecim, int *y_predecim);
-
-u32 dispc_mgr_get_vsync_irq(enum omap_channel channel);
-u32 dispc_mgr_get_framedone_irq(enum omap_channel channel);
-u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel);
-bool dispc_mgr_go_busy(enum omap_channel channel);
-void dispc_mgr_go(enum omap_channel channel);
-void dispc_mgr_enable(enum omap_channel channel, bool enable);
-bool dispc_mgr_is_enabled(enum omap_channel channel);
-void dispc_mgr_set_lcd_config(enum omap_channel channel,
-		const struct dss_lcd_mgr_config *config);
-void dispc_mgr_set_timings(enum omap_channel channel,
-		const struct omap_video_timings *timings);
+
 unsigned long dispc_mgr_lclk_rate(enum omap_channel channel);
 unsigned long dispc_mgr_pclk_rate(enum omap_channel channel);
 unsigned long dispc_core_clk_rate(void);
@@ -428,8 +396,6 @@ void dispc_mgr_set_clock_div(enum omap_channel channel,
 		const struct dispc_clock_info *cinfo);
 int dispc_mgr_get_clock_div(enum omap_channel channel,
 		struct dispc_clock_info *cinfo);
-void dispc_mgr_setup(enum omap_channel channel,
-		const struct omap_overlay_manager_info *info);
 
 u32 dispc_wb_get_framedone_irq(void);
 bool dispc_wb_go_busy(void);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 8c9df486727..caefa093337 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -21,6 +21,7 @@
 #include <linux/list.h>
 #include <linux/kobject.h>
 #include <linux/device.h>
+#include <linux/interrupt.h>
 
 #define DISPC_IRQ_FRAMEDONE		(1 << 0)
 #define DISPC_IRQ_VSYNC			(1 << 1)
@@ -784,6 +785,44 @@ typedef void (*omap_dispc_isr_t) (void *arg, u32 mask);
 int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
 int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
 
+u32 dispc_read_irqstatus(void);
+void dispc_clear_irqstatus(u32 mask);
+u32 dispc_read_irqenable(void);
+void dispc_write_irqenable(u32 mask);
+
+int dispc_request_irq(irq_handler_t handler, void *dev_id);
+void dispc_free_irq(void *dev_id);
+
+int dispc_runtime_get(void);
+void dispc_runtime_put(void);
+
+void dispc_mgr_enable(enum omap_channel channel, bool enable);
+bool dispc_mgr_is_enabled(enum omap_channel channel);
+u32 dispc_mgr_get_vsync_irq(enum omap_channel channel);
+u32 dispc_mgr_get_framedone_irq(enum omap_channel channel);
+u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel);
+bool dispc_mgr_go_busy(enum omap_channel channel);
+void dispc_mgr_go(enum omap_channel channel);
+void dispc_mgr_set_lcd_config(enum omap_channel channel,
+		const struct dss_lcd_mgr_config *config);
+void dispc_mgr_set_timings(enum omap_channel channel,
+		const struct omap_video_timings *timings);
+void dispc_mgr_setup(enum omap_channel channel,
+		const struct omap_overlay_manager_info *info);
+
+int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
+		const struct omap_overlay_info *oi,
+		const struct omap_video_timings *timings,
+		int *x_predecim, int *y_predecim);
+
+int dispc_ovl_enable(enum omap_plane plane, bool enable);
+bool dispc_ovl_enabled(enum omap_plane plane);
+void dispc_ovl_set_channel_out(enum omap_plane plane,
+		enum omap_channel channel);
+int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
+		bool replication, const struct omap_video_timings *mgr_timings,
+		bool mem_to_mem);
+
 #define to_dss_driver(x) container_of((x), struct omap_dss_driver, driver)
 #define to_dss_device(x) container_of((x), struct omap_dss_device, dev)
 
-- 
cgit v1.2.3


From a9ee9f08b615f746f31a41a6415712081c1a2865 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 10 Oct 2012 10:26:45 +0300
Subject: OMAPDSS: use omapdss_compat_init() in other drivers

omapdss_compat_init() and omapdss_compat_uninit() is called internally
by omapdss. This patch moves the calls to omapfb, omap_vout and omapdrm
drivers. omapdrm driver can later remove the call after non-compat
support has been implemented in omapdrm.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/media/platform/omap/omap_vout.c  | 17 ++++++++++++++---
 drivers/staging/omapdrm/omap_drv.c       | 11 +++++++++++
 drivers/video/omap2/dss/core.c           |  4 ----
 drivers/video/omap2/omapfb/omapfb-main.c |  6 ++++++
 4 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
index a2cc634eb42..e8cac9e55bc 100644
--- a/drivers/media/platform/omap/omap_vout.c
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -2184,14 +2184,23 @@ static int __init omap_vout_probe(struct platform_device *pdev)
 	struct omap_dss_device *def_display;
 	struct omap2video_device *vid_dev = NULL;
 
+	ret = omapdss_compat_init();
+	if (ret) {
+		dev_err(&pdev->dev, "failed to init dss\n");
+		return ret;
+	}
+
 	if (pdev->num_resources == 0) {
 		dev_err(&pdev->dev, "probed for an unknown device\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto err_dss_init;
 	}
 
 	vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
-	if (vid_dev == NULL)
-		return -ENOMEM;
+	if (vid_dev == NULL) {
+		ret = -ENOMEM;
+		goto err_dss_init;
+	}
 
 	vid_dev->num_displays = 0;
 	for_each_dss_dev(dssdev) {
@@ -2286,6 +2295,8 @@ probe_err1:
 	}
 probe_err0:
 	kfree(vid_dev);
+err_dss_init:
+	omapdss_compat_uninit();
 	return ret;
 }
 
diff --git a/drivers/staging/omapdrm/omap_drv.c b/drivers/staging/omapdrm/omap_drv.c
index ebdb0b67673..2bf72591817 100644
--- a/drivers/staging/omapdrm/omap_drv.c
+++ b/drivers/staging/omapdrm/omap_drv.c
@@ -572,6 +572,14 @@ static int dev_load(struct drm_device *dev, unsigned long flags)
 
 	dev->dev_private = priv;
 
+	ret = omapdss_compat_init();
+	if (ret) {
+		dev_err(dev->dev, "coult not init omapdss\n");
+		dev->dev_private = NULL;
+		kfree(priv);
+		return ret;
+	}
+
 	priv->wq = alloc_ordered_workqueue("omapdrm", 0);
 
 	INIT_LIST_HEAD(&priv->obj_list);
@@ -583,6 +591,7 @@ static int dev_load(struct drm_device *dev, unsigned long flags)
 		dev_err(dev->dev, "omap_modeset_init failed: ret=%d\n", ret);
 		dev->dev_private = NULL;
 		kfree(priv);
+		omapdss_compat_uninit();
 		return ret;
 	}
 
@@ -618,6 +627,8 @@ static int dev_unload(struct drm_device *dev)
 	flush_workqueue(priv->wq);
 	destroy_workqueue(priv->wq);
 
+	omapdss_compat_uninit();
+
 	kfree(dev->dev_private);
 	dev->dev_private = NULL;
 
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 50817fe18cf..f8779d4750b 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -232,8 +232,6 @@ static int __init omap_dss_probe(struct platform_device *pdev)
 
 	dss_features_init(omapdss_get_version());
 
-	omapdss_compat_init();
-
 	r = dss_initialize_debugfs();
 	if (r)
 		goto err_debugfs;
@@ -258,8 +256,6 @@ static int omap_dss_remove(struct platform_device *pdev)
 
 	dss_uninitialize_debugfs();
 
-	omapdss_compat_uninit();
-
 	return 0;
 }
 
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 1f60741a788..4fa9487a872 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2425,6 +2425,9 @@ static int __init omapfb_probe(struct platform_device *pdev)
 				"ignoring the module parameter vrfb=y\n");
 	}
 
+	r = omapdss_compat_init();
+	if (r)
+		goto err0;
 
 	mutex_init(&fbdev->mtx);
 
@@ -2544,6 +2547,7 @@ static int __init omapfb_probe(struct platform_device *pdev)
 
 cleanup:
 	omapfb_free_resources(fbdev);
+	omapdss_compat_uninit();
 err0:
 	dev_err(&pdev->dev, "failed to setup omapfb\n");
 	return r;
@@ -2559,6 +2563,8 @@ static int __exit omapfb_remove(struct platform_device *pdev)
 
 	omapfb_free_resources(fbdev);
 
+	omapdss_compat_uninit();
+
 	return 0;
 }
 
-- 
cgit v1.2.3


From 5aaee69d7fe02d1ffb76b6a31a588efa5f2742e3 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 12 Dec 2012 10:37:03 +0200
Subject: OMAPDSS: DISPC: get dss clock rate from dss driver

Dispc currently gets dispc's fck with clk_get() and uses clk_get_rate()
to get the rate for scaling calculations. This causes a problem with
common clock framework, as omapdss uses the dispc functions inside a
spinlock, and common clock framework uses a mutex in clk_get_rate().

Looking at the DSS clock tree, the above use of the dispc fck is not
quite correct. The DSS_FCLK from PRCM goes to DSS core block, which has
a mux to select the clock for DISPC from various options, so the current
use of dispc fck bypasses that. Fortunately we never change the dispc
clock mux for now.

To fix the issue with clk_get_rate(), this patch caches the dss clock
rate in dss.c when it is set. Dispc will then ask for the clock rate
from dss. While this is not very elegant, it does fix the issue, and
it's not totally wrong when considering that the dispc fck actually
comes via dss.

In the future we should probably look into common clock framework and
see if that could be used to represent the DSS clock tree properly.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c |  4 ++--
 drivers/video/omap2/dss/dss.c   | 12 ++++++++++++
 drivers/video/omap2/dss/dss.h   |  1 +
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index fedbd2c8e97..08137a8a38c 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2970,7 +2970,7 @@ unsigned long dispc_fclk_rate(void)
 
 	switch (dss_get_dispc_clk_source()) {
 	case OMAP_DSS_CLK_SRC_FCK:
-		r = clk_get_rate(dispc.dss_clk);
+		r = dss_get_dispc_clk_rate();
 		break;
 	case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
 		dsidev = dsi_get_dsidev_from_id(0);
@@ -3002,7 +3002,7 @@ unsigned long dispc_mgr_lclk_rate(enum omap_channel channel)
 
 		switch (dss_get_lcd_clk_source(channel)) {
 		case OMAP_DSS_CLK_SRC_FCK:
-			r = clk_get_rate(dispc.dss_clk);
+			r = dss_get_dispc_clk_rate();
 			break;
 		case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
 			dsidev = dsi_get_dsidev_from_id(0);
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 833f1627dc7..054c2a22b3f 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -77,6 +77,7 @@ static struct {
 
 	struct clk	*dpll4_m4_ck;
 	struct clk	*dss_clk;
+	unsigned long	dss_clk_rate;
 
 	unsigned long	cache_req_pck;
 	unsigned long	cache_prate;
@@ -489,6 +490,10 @@ int dss_set_clock_div(struct dss_clock_info *cinfo)
 			return -EINVAL;
 	}
 
+	dss.dss_clk_rate = clk_get_rate(dss.dss_clk);
+
+	WARN_ONCE(dss.dss_clk_rate != cinfo->fck, "clk rate mismatch");
+
 	DSSDBG("fck = %ld (%d)\n", cinfo->fck, cinfo->fck_div);
 
 	return 0;
@@ -502,6 +507,11 @@ unsigned long dss_get_dpll4_rate(void)
 		return 0;
 }
 
+unsigned long dss_get_dispc_clk_rate(void)
+{
+	return dss.dss_clk_rate;
+}
+
 static int dss_setup_default_clock(void)
 {
 	unsigned long max_dss_fck, prate;
@@ -953,6 +963,8 @@ static int __init omap_dsshw_probe(struct platform_device *pdev)
 	if (r)
 		goto err_runtime_get;
 
+	dss.dss_clk_rate = clk_get_rate(dss.dss_clk);
+
 	/* Select DPLL */
 	REG_FLD_MOD(DSS_CONTROL, 0, 0, 0);
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index ebe9e08b2a9..610c8e563da 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -237,6 +237,7 @@ void dss_overlay_kobj_uninit(struct omap_overlay *ovl);
 int dss_init_platform_driver(void) __init;
 void dss_uninit_platform_driver(void);
 
+unsigned long dss_get_dispc_clk_rate(void);
 int dss_dpi_select_source(enum omap_channel channel);
 void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);
 enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
-- 
cgit v1.2.3


From 8105c94bc4f94478c67afb7593724e4d684dd9c0 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 12 Dec 2012 11:15:39 +0200
Subject: OMAPDSS: DISPC: remove dispc fck uses

The previous patch changes dispc to get the dispc fck rate from dss core
driver. This was the only use of the dispc fck in dispc, and thus we can
now remove the clock handling.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 08137a8a38c..05ff2b91d9e 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -96,7 +96,6 @@ static struct {
 	int		ctx_loss_cnt;
 
 	int irq;
-	struct clk *dss_clk;
 
 	u32 fifo_size[DISPC_MAX_NR_FIFOS];
 	/* maps which plane is using a fifo. fifo-id -> plane-id */
@@ -3619,7 +3618,6 @@ static int __init omap_dispchw_probe(struct platform_device *pdev)
 	u32 rev;
 	int r = 0;
 	struct resource *dispc_mem;
-	struct clk *clk;
 
 	dispc.pdev = pdev;
 
@@ -3646,15 +3644,6 @@ static int __init omap_dispchw_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	clk = clk_get(&pdev->dev, "fck");
-	if (IS_ERR(clk)) {
-		DSSERR("can't get fck\n");
-		r = PTR_ERR(clk);
-		return r;
-	}
-
-	dispc.dss_clk = clk;
-
 	pm_runtime_enable(&pdev->dev);
 
 	r = dispc_runtime_get();
@@ -3675,7 +3664,6 @@ static int __init omap_dispchw_probe(struct platform_device *pdev)
 
 err_runtime_get:
 	pm_runtime_disable(&pdev->dev);
-	clk_put(dispc.dss_clk);
 	return r;
 }
 
@@ -3683,8 +3671,6 @@ static int __exit omap_dispchw_remove(struct platform_device *pdev)
 {
 	pm_runtime_disable(&pdev->dev);
 
-	clk_put(dispc.dss_clk);
-
 	return 0;
 }
 
-- 
cgit v1.2.3


From 057eeaee6803dafbbf2f79345643530e731ba7cb Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Dec 2012 12:08:21 +0200
Subject: OMAPFB: use devm_kzalloc to allocate omapfb2_device

Use devm_kzalloc to allocate omapfb2_device. This fixes possible memory
leak:

drivers/video/omap2/omapfb/omapfb-main.c:2553 omapfb_probe() warn:
possible memory leak of 'fbdev'

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 4fa9487a872..477a20817d0 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -1868,7 +1868,6 @@ static void omapfb_free_resources(struct omapfb2_device *fbdev)
 	}
 
 	dev_set_drvdata(fbdev->dev, NULL);
-	kfree(fbdev);
 }
 
 static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
@@ -2413,7 +2412,8 @@ static int __init omapfb_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL);
+	fbdev = devm_kzalloc(&pdev->dev, sizeof(struct omapfb2_device),
+			GFP_KERNEL);
 	if (fbdev == NULL) {
 		r = -ENOMEM;
 		goto err0;
-- 
cgit v1.2.3


From fa0c5e71295fa4d62b900818d900c16980985e72 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Dec 2012 12:13:51 +0200
Subject: OMAPFB: fix error handling in omapfb_find_best_mode()

omapfb_find_best_mode() doesn't check for the return value of kmalloc.
Fix this. This also removes the smatch warning:

drivers/video/omap2/omapfb/omapfb-main.c:2256 omapfb_find_best_mode()
error: potential null dereference 'specs'.  (kzalloc returns null)

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 477a20817d0..948dfb9f3e9 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2241,12 +2241,18 @@ static int omapfb_find_best_mode(struct omap_dss_device *display,
 
 	len = 0x80 * 2;
 	edid = kmalloc(len, GFP_KERNEL);
+	if (edid == NULL)
+		return -ENOMEM;
 
 	r = display->driver->read_edid(display, edid, len);
 	if (r < 0)
 		goto err1;
 
 	specs = kzalloc(sizeof(*specs), GFP_KERNEL);
+	if (specs == NULL) {
+		r = -ENOMEM;
+		goto err1;
+	}
 
 	fb_edid_to_monspecs(edid, specs);
 
-- 
cgit v1.2.3


From c7e1eae537652330cec3fbf5f8f50000b2f24269 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Dec 2012 12:17:08 +0200
Subject: OMAPFB: remove silly loop in fb2display()

fb2display() has a for loop which always returns at the first iteration.
Replace the loop with a simple if.

This removes the smatch warning:

drivers/video/omap2/omapfb/omapfb.h:153 fb2display() info: loop could be
replaced with if statement.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h
index 71cd8bab31c..2b5264475ed 100644
--- a/drivers/video/omap2/omapfb/omapfb.h
+++ b/drivers/video/omap2/omapfb/omapfb.h
@@ -144,16 +144,16 @@ int omapfb_set_update_mode(struct fb_info *fbi, enum omapfb_update_mode mode);
 static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	int i;
+	struct omap_overlay *ovl;
 
 	/* XXX: returns the display connected to first attached overlay */
-	for (i = 0; i < ofbi->num_overlays; i++) {
-		struct omap_overlay *ovl = ofbi->overlays[i];
 
-		return ovl->get_device(ovl);
-	}
+	if (ofbi->num_overlays == 0)
+		return NULL;
 
-	return NULL;
+	ovl = ofbi->overlays[0];
+
+	return ovl->get_device(ovl);
 }
 
 static inline struct omapfb_display_data *get_display_data(
-- 
cgit v1.2.3


From 3ed37d9aba486dece93e05d68f691b80ee100900 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Dec 2012 13:19:05 +0200
Subject: Revert "OMAPFB: simplify locking"

This reverts commit b41deecbda70067b26a3a7704fdf967a7940935b.

The simpler locking causes huge latencies when two processes use the
omapfb, even if they use different framebuffers.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/omapfb/omapfb-ioctl.c | 68 ++++++++++++++++++++----
 drivers/video/omap2/omapfb/omapfb-main.c  | 40 ++++++++++----
 drivers/video/omap2/omapfb/omapfb-sysfs.c | 87 ++++++++++---------------------
 drivers/video/omap2/omapfb/omapfb.h       | 16 ++++++
 4 files changed, 132 insertions(+), 79 deletions(-)

diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index dccb158b0d0..d30b45d7264 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -85,6 +85,16 @@ static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 		goto out;
 	}
 
+	/* Take the locks in a specific order to keep lockdep happy */
+	if (old_rg->id < new_rg->id) {
+		omapfb_get_mem_region(old_rg);
+		omapfb_get_mem_region(new_rg);
+	} else if (new_rg->id < old_rg->id) {
+		omapfb_get_mem_region(new_rg);
+		omapfb_get_mem_region(old_rg);
+	} else
+		omapfb_get_mem_region(old_rg);
+
 	if (pi->enabled && !new_rg->size) {
 		/*
 		 * This plane's memory was freed, can't enable it
@@ -136,6 +146,16 @@ static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 			goto undo;
 	}
 
+	/* Release the locks in a specific order to keep lockdep happy */
+	if (old_rg->id > new_rg->id) {
+		omapfb_put_mem_region(old_rg);
+		omapfb_put_mem_region(new_rg);
+	} else if (new_rg->id > old_rg->id) {
+		omapfb_put_mem_region(new_rg);
+		omapfb_put_mem_region(old_rg);
+	} else
+		omapfb_put_mem_region(old_rg);
+
 	return 0;
 
  undo:
@@ -146,6 +166,15 @@ static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 
 	ovl->set_overlay_info(ovl, &old_info);
  put_mem:
+	/* Release the locks in a specific order to keep lockdep happy */
+	if (old_rg->id > new_rg->id) {
+		omapfb_put_mem_region(old_rg);
+		omapfb_put_mem_region(new_rg);
+	} else if (new_rg->id > old_rg->id) {
+		omapfb_put_mem_region(new_rg);
+		omapfb_put_mem_region(old_rg);
+	} else
+		omapfb_put_mem_region(old_rg);
  out:
 	dev_err(fbdev->dev, "setup_plane failed\n");
 
@@ -195,10 +224,11 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 	if (display && display->driver->sync)
 		display->driver->sync(display);
 
-	mutex_lock(&fbi->mm_lock);
-
 	rg = ofbi->region;
 
+	down_write_nested(&rg->lock, rg->id);
+	atomic_inc(&rg->lock_count);
+
 	if (rg->size == size && rg->type == mi->type)
 		goto out;
 
@@ -231,7 +261,9 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 	}
 
  out:
-	mutex_unlock(&fbi->mm_lock);
+	atomic_dec(&rg->lock_count);
+	up_write(&rg->lock);
+
 	return r;
 }
 
@@ -240,12 +272,14 @@ static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 	struct omapfb_info *ofbi = FB2OFB(fbi);
 	struct omapfb2_mem_region *rg;
 
-	rg = ofbi->region;
+	rg = omapfb_get_mem_region(ofbi->region);
 	memset(mi, 0, sizeof(*mi));
 
 	mi->size = rg->size;
 	mi->type = rg->type;
 
+	omapfb_put_mem_region(rg);
+
 	return 0;
 }
 
@@ -284,10 +318,14 @@ int omapfb_set_update_mode(struct fb_info *fbi,
 	if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
 		return -EINVAL;
 
+	omapfb_lock(fbdev);
+
 	d = get_display_data(fbdev, display);
 
-	if (d->update_mode == mode)
+	if (d->update_mode == mode) {
+		omapfb_unlock(fbdev);
 		return 0;
+	}
 
 	r = 0;
 
@@ -303,6 +341,8 @@ int omapfb_set_update_mode(struct fb_info *fbi,
 			r = -EINVAL;
 	}
 
+	omapfb_unlock(fbdev);
+
 	return r;
 }
 
@@ -317,10 +357,14 @@ int omapfb_get_update_mode(struct fb_info *fbi,
 	if (!display)
 		return -EINVAL;
 
+	omapfb_lock(fbdev);
+
 	d = get_display_data(fbdev, display);
 
 	*mode = d->update_mode;
 
+	omapfb_unlock(fbdev);
+
 	return 0;
 }
 
@@ -380,10 +424,13 @@ static int omapfb_set_color_key(struct fb_info *fbi,
 		struct omapfb_color_key *ck)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	int r;
 	int i;
 	struct omap_overlay_manager *mgr = NULL;
 
+	omapfb_lock(fbdev);
+
 	for (i = 0; i < ofbi->num_overlays; i++) {
 		if (ofbi->overlays[i]->manager) {
 			mgr = ofbi->overlays[i]->manager;
@@ -398,6 +445,8 @@ static int omapfb_set_color_key(struct fb_info *fbi,
 
 	r = _omapfb_set_color_key(mgr, ck);
 err:
+	omapfb_unlock(fbdev);
+
 	return r;
 }
 
@@ -405,10 +454,13 @@ static int omapfb_get_color_key(struct fb_info *fbi,
 		struct omapfb_color_key *ck)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
 	struct omap_overlay_manager *mgr = NULL;
 	int r = 0;
 	int i;
 
+	omapfb_lock(fbdev);
+
 	for (i = 0; i < ofbi->num_overlays; i++) {
 		if (ofbi->overlays[i]->manager) {
 			mgr = ofbi->overlays[i]->manager;
@@ -423,6 +475,8 @@ static int omapfb_get_color_key(struct fb_info *fbi,
 
 	*ck = omapfb_color_keys[mgr->id];
 err:
+	omapfb_unlock(fbdev);
+
 	return r;
 }
 
@@ -549,8 +603,6 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 
 	int r = 0;
 
-	omapfb_lock(fbdev);
-
 	switch (cmd) {
 	case OMAPFB_SYNC_GFX:
 		DBG("ioctl SYNC_GFX\n");
@@ -856,8 +908,6 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 		r = -EINVAL;
 	}
 
-	omapfb_unlock(fbdev);
-
 	if (r < 0)
 		DBG("ioctl failed: %d\n", r);
 
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 948dfb9f3e9..ca585ef37f2 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -672,6 +672,8 @@ int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
 
 	DBG("check_fb_var %d\n", ofbi->id);
 
+	WARN_ON(!atomic_read(&ofbi->region->lock_count));
+
 	r = fb_mode_to_dss_mode(var, &mode);
 	if (r) {
 		DBG("cannot convert var to omap dss mode\n");
@@ -853,6 +855,8 @@ int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
 	int rotation = var->rotate;
 	int i;
 
+	WARN_ON(!atomic_read(&ofbi->region->lock_count));
+
 	for (i = 0; i < ofbi->num_overlays; i++) {
 		if (ovl != ofbi->overlays[i])
 			continue;
@@ -944,6 +948,8 @@ int omapfb_apply_changes(struct fb_info *fbi, int init)
 		fill_fb(fbi);
 #endif
 
+	WARN_ON(!atomic_read(&ofbi->region->lock_count));
+
 	for (i = 0; i < ofbi->num_overlays; i++) {
 		ovl = ofbi->overlays[i];
 
@@ -1002,16 +1008,15 @@ err:
 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	int r;
 
 	DBG("check_var(%d)\n", FB2OFB(fbi)->id);
 
-	omapfb_lock(fbdev);
+	omapfb_get_mem_region(ofbi->region);
 
 	r = check_fb_var(fbi, var);
 
-	omapfb_unlock(fbdev);
+	omapfb_put_mem_region(ofbi->region);
 
 	return r;
 }
@@ -1020,12 +1025,11 @@ static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
 static int omapfb_set_par(struct fb_info *fbi)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	int r;
 
 	DBG("set_par(%d)\n", FB2OFB(fbi)->id);
 
-	omapfb_lock(fbdev);
+	omapfb_get_mem_region(ofbi->region);
 
 	set_fb_fix(fbi);
 
@@ -1036,7 +1040,7 @@ static int omapfb_set_par(struct fb_info *fbi)
 	r = omapfb_apply_changes(fbi, 0);
 
  out:
-	omapfb_unlock(fbdev);
+	omapfb_put_mem_region(ofbi->region);
 
 	return r;
 }
@@ -1045,7 +1049,6 @@ static int omapfb_pan_display(struct fb_var_screeninfo *var,
 		struct fb_info *fbi)
 {
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	struct fb_var_screeninfo new_var;
 	int r;
 
@@ -1061,11 +1064,11 @@ static int omapfb_pan_display(struct fb_var_screeninfo *var,
 
 	fbi->var = new_var;
 
-	omapfb_lock(fbdev);
+	omapfb_get_mem_region(ofbi->region);
 
 	r = omapfb_apply_changes(fbi, 0);
 
-	omapfb_unlock(fbdev);
+	omapfb_put_mem_region(ofbi->region);
 
 	return r;
 }
@@ -1074,14 +1077,18 @@ static void mmap_user_open(struct vm_area_struct *vma)
 {
 	struct omapfb2_mem_region *rg = vma->vm_private_data;
 
+	omapfb_get_mem_region(rg);
 	atomic_inc(&rg->map_count);
+	omapfb_put_mem_region(rg);
 }
 
 static void mmap_user_close(struct vm_area_struct *vma)
 {
 	struct omapfb2_mem_region *rg = vma->vm_private_data;
 
+	omapfb_get_mem_region(rg);
 	atomic_dec(&rg->map_count);
+	omapfb_put_mem_region(rg);
 }
 
 static struct vm_operations_struct mmap_user_ops = {
@@ -1105,7 +1112,7 @@ static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
 		return -EINVAL;
 	off = vma->vm_pgoff << PAGE_SHIFT;
 
-	rg = ofbi->region;
+	rg = omapfb_get_mem_region(ofbi->region);
 
 	start = omapfb_get_region_paddr(ofbi);
 	len = fix->smem_len;
@@ -1133,9 +1140,13 @@ static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
 	/* vm_ops.open won't be called for mmap itself. */
 	atomic_inc(&rg->map_count);
 
+	omapfb_put_mem_region(rg);
+
 	return 0;
 
  error:
+	omapfb_put_mem_region(ofbi->region);
+
 	return r;
 }
 
@@ -1902,6 +1913,7 @@ static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
 
 		ofbi->region = &fbdev->regions[i];
 		ofbi->region->id = i;
+		init_rwsem(&ofbi->region->lock);
 
 		/* assign these early, so that fb alloc can use them */
 		ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB :
@@ -1933,8 +1945,12 @@ static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
 	/* setup fb_infos */
 	for (i = 0; i < fbdev->num_fbs; i++) {
 		struct fb_info *fbi = fbdev->fbs[i];
+		struct omapfb_info *ofbi = FB2OFB(fbi);
 
+		omapfb_get_mem_region(ofbi->region);
 		r = omapfb_fb_init(fbdev, fbi);
+		omapfb_put_mem_region(ofbi->region);
+
 		if (r) {
 			dev_err(fbdev->dev, "failed to setup fb_info\n");
 			return r;
@@ -1966,8 +1982,12 @@ static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
 
 	for (i = 0; i < fbdev->num_fbs; i++) {
 		struct fb_info *fbi = fbdev->fbs[i];
+		struct omapfb_info *ofbi = FB2OFB(fbi);
 
+		omapfb_get_mem_region(ofbi->region);
 		r = omapfb_apply_changes(fbi, 1);
+		omapfb_put_mem_region(ofbi->region);
+
 		if (r) {
 			dev_err(fbdev->dev, "failed to change mode\n");
 			return r;
diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c
index be5eb074b7d..18fa9e1d003 100644
--- a/drivers/video/omap2/omapfb/omapfb-sysfs.c
+++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c
@@ -49,7 +49,6 @@ static ssize_t store_rotate_type(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	struct omapfb2_mem_region *rg;
 	int rot_type;
 	int r;
@@ -63,13 +62,12 @@ static ssize_t store_rotate_type(struct device *dev,
 
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
-	omapfb_lock(fbdev);
 
 	r = 0;
 	if (rot_type == ofbi->rotation_type)
 		goto out;
 
-	rg = ofbi->region;
+	rg = omapfb_get_mem_region(ofbi->region);
 
 	if (rg->size) {
 		r = -EBUSY;
@@ -83,8 +81,8 @@ static ssize_t store_rotate_type(struct device *dev,
 	 * need to do any further parameter checking at this point.
 	 */
 put_region:
+	omapfb_put_mem_region(rg);
 out:
-	omapfb_unlock(fbdev);
 	unlock_fb_info(fbi);
 
 	return r ? r : count;
@@ -106,7 +104,6 @@ static ssize_t store_mirror(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	bool mirror;
 	int r;
 	struct fb_var_screeninfo new_var;
@@ -117,10 +114,11 @@ static ssize_t store_mirror(struct device *dev,
 
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
-	omapfb_lock(fbdev);
 
 	ofbi->mirror = mirror;
 
+	omapfb_get_mem_region(ofbi->region);
+
 	memcpy(&new_var, &fbi->var, sizeof(new_var));
 	r = check_fb_var(fbi, &new_var);
 	if (r)
@@ -135,7 +133,8 @@ static ssize_t store_mirror(struct device *dev,
 
 	r = count;
 out:
-	omapfb_unlock(fbdev);
+	omapfb_put_mem_region(ofbi->region);
+
 	unlock_fb_info(fbi);
 
 	return r;
@@ -274,11 +273,15 @@ static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
 
 		DBG("detaching %d\n", ofbi->overlays[i]->id);
 
+		omapfb_get_mem_region(ofbi->region);
+
 		omapfb_overlay_enable(ovl, 0);
 
 		if (ovl->manager)
 			ovl->manager->apply(ovl->manager);
 
+		omapfb_put_mem_region(ofbi->region);
+
 		for (t = i + 1; t < ofbi->num_overlays; t++) {
 			ofbi->rotation[t-1] = ofbi->rotation[t];
 			ofbi->overlays[t-1] = ofbi->overlays[t];
@@ -311,8 +314,12 @@ static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
 	}
 
 	if (added) {
+		omapfb_get_mem_region(ofbi->region);
+
 		r = omapfb_apply_changes(fbi, 0);
 
+		omapfb_put_mem_region(ofbi->region);
+
 		if (r)
 			goto out;
 	}
@@ -330,13 +337,11 @@ static ssize_t show_overlays_rotate(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	ssize_t l = 0;
 	int t;
 
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
-	omapfb_lock(fbdev);
 
 	for (t = 0; t < ofbi->num_overlays; t++) {
 		l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
@@ -345,7 +350,6 @@ static ssize_t show_overlays_rotate(struct device *dev,
 
 	l += snprintf(buf + l, PAGE_SIZE - l, "\n");
 
-	omapfb_unlock(fbdev);
 	unlock_fb_info(fbi);
 
 	return l;
@@ -356,7 +360,6 @@ static ssize_t store_overlays_rotate(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	int num_ovls = 0, r, i;
 	int len;
 	bool changed = false;
@@ -368,7 +371,6 @@ static ssize_t store_overlays_rotate(struct device *dev,
 
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
-	omapfb_lock(fbdev);
 
 	if (len > 0) {
 		char *p = (char *)buf;
@@ -405,7 +407,12 @@ static ssize_t store_overlays_rotate(struct device *dev,
 		for (i = 0; i < num_ovls; ++i)
 			ofbi->rotation[i] = rotation[i];
 
+		omapfb_get_mem_region(ofbi->region);
+
 		r = omapfb_apply_changes(fbi, 0);
+
+		omapfb_put_mem_region(ofbi->region);
+
 		if (r)
 			goto out;
 
@@ -414,7 +421,6 @@ static ssize_t store_overlays_rotate(struct device *dev,
 
 	r = count;
 out:
-	omapfb_unlock(fbdev);
 	unlock_fb_info(fbi);
 
 	return r;
@@ -425,19 +431,8 @@ static ssize_t show_size(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
-	int r;
 
-	if (!lock_fb_info(fbi))
-		return -ENODEV;
-	omapfb_lock(fbdev);
-
-	r = snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region->size);
-
-	omapfb_unlock(fbdev);
-	unlock_fb_info(fbi);
-
-	return r;
+	return snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region->size);
 }
 
 static ssize_t store_size(struct device *dev, struct device_attribute *attr,
@@ -460,15 +455,15 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
 
 	if (!lock_fb_info(fbi))
 		return -ENODEV;
-	omapfb_lock(fbdev);
 
 	if (display && display->driver->sync)
 		display->driver->sync(display);
 
-	mutex_lock(&fbi->mm_lock);
-
 	rg = ofbi->region;
 
+	down_write_nested(&rg->lock, rg->id);
+	atomic_inc(&rg->lock_count);
+
 	if (atomic_read(&rg->map_count)) {
 		r = -EBUSY;
 		goto out;
@@ -501,8 +496,9 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
 
 	r = count;
 out:
-	mutex_unlock(&fbi->mm_lock);
-	omapfb_unlock(fbdev);
+	atomic_dec(&rg->lock_count);
+	up_write(&rg->lock);
+
 	unlock_fb_info(fbi);
 
 	return r;
@@ -513,19 +509,8 @@ static ssize_t show_phys(struct device *dev,
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
 	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
-	int r;
 
-	if (!lock_fb_info(fbi))
-		return -ENODEV;
-	omapfb_lock(fbdev);
-
-	r = snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region->paddr);
-
-	omapfb_unlock(fbdev);
-	unlock_fb_info(fbi);
-
-	return r;
+	return snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region->paddr);
 }
 
 static ssize_t show_virt(struct device *dev,
@@ -541,20 +526,11 @@ static ssize_t show_upd_mode(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
-	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	enum omapfb_update_mode mode;
 	int r;
 
-	if (!lock_fb_info(fbi))
-		return -ENODEV;
-	omapfb_lock(fbdev);
-
 	r = omapfb_get_update_mode(fbi, &mode);
 
-	omapfb_unlock(fbdev);
-	unlock_fb_info(fbi);
-
 	if (r)
 		return r;
 
@@ -565,8 +541,6 @@ static ssize_t store_upd_mode(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct fb_info *fbi = dev_get_drvdata(dev);
-	struct omapfb_info *ofbi = FB2OFB(fbi);
-	struct omapfb2_device *fbdev = ofbi->fbdev;
 	unsigned mode;
 	int r;
 
@@ -574,17 +548,10 @@ static ssize_t store_upd_mode(struct device *dev, struct device_attribute *attr,
 	if (r)
 		return r;
 
-	if (!lock_fb_info(fbi))
-		return -ENODEV;
-	omapfb_lock(fbdev);
-
 	r = omapfb_set_update_mode(fbi, mode);
 	if (r)
 		return r;
 
-	omapfb_unlock(fbdev);
-	unlock_fb_info(fbi);
-
 	return count;
 }
 
diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h
index 2b5264475ed..623cd872a36 100644
--- a/drivers/video/omap2/omapfb/omapfb.h
+++ b/drivers/video/omap2/omapfb/omapfb.h
@@ -62,6 +62,8 @@ struct omapfb2_mem_region {
 	bool		alloc;		/* allocated by the driver */
 	bool		map;		/* kernel mapped by the driver */
 	atomic_t	map_count;
+	struct rw_semaphore lock;
+	atomic_t	lock_count;
 };
 
 /* appended to fb_info */
@@ -189,4 +191,18 @@ static inline int omapfb_overlay_enable(struct omap_overlay *ovl,
 		return ovl->disable(ovl);
 }
 
+static inline struct omapfb2_mem_region *
+omapfb_get_mem_region(struct omapfb2_mem_region *rg)
+{
+	down_read_nested(&rg->lock, rg->id);
+	atomic_inc(&rg->lock_count);
+	return rg;
+}
+
+static inline void omapfb_put_mem_region(struct omapfb2_mem_region *rg)
+{
+	atomic_dec(&rg->lock_count);
+	up_read(&rg->lock);
+}
+
 #endif
-- 
cgit v1.2.3


From bd0f5cc3641cb76ae8fa2cc4924c29da157f8b2d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Dec 2012 14:21:30 +0200
Subject: OMAPDSS: fix TV-out issue with DSI PLL

Commit 0e8276ef75f5c7811b038d1d23b2b42c16efc5ac (OMAPDSS: DPI: always
use DSI PLL if available) made dpi.c use DSI PLL for its clock. This
works fine, for DPI, but has a nasty side effect on OMAP3:

On OMAP3 the same clock is used for DISPC fclk and LCD output. Thus,
after the above patch, DSI PLL is used for DISPC and LCD output. If
TV-out is used, the TV-out needs DISPC. And if DPI is turned off, the
DSI PLL is also turned off, disabling DISPC.

For this to work, we'd need proper DSS internal clock handling, with
refcounts, which is a non-trivial project.

This patch fixes the issue for now by disabling the use of DSI PLL for
DPI on OMAP3.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dpi.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 6cbcc81991a..4af136a04e5 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -51,6 +51,22 @@ static struct {
 
 static struct platform_device *dpi_get_dsidev(enum omap_channel channel)
 {
+	/*
+	 * XXX we can't currently use DSI PLL for DPI with OMAP3, as the DSI PLL
+	 * would also be used for DISPC fclk. Meaning, when the DPI output is
+	 * disabled, DISPC clock will be disabled, and TV out will stop.
+	 */
+	switch (omapdss_get_version()) {
+	case OMAPDSS_VER_OMAP24xx:
+	case OMAPDSS_VER_OMAP34xx_ES1:
+	case OMAPDSS_VER_OMAP34xx_ES3:
+	case OMAPDSS_VER_OMAP3630:
+	case OMAPDSS_VER_AM35xx:
+		return NULL;
+	default:
+		break;
+	}
+
 	switch (channel) {
 	case OMAP_DSS_CHANNEL_LCD:
 		return dsi_get_dsidev_from_id(0);
-- 
cgit v1.2.3