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authorJohn Stultz <john.stultz@linaro.org>2013-05-08 15:55:50 -0700
committerJohn Stultz <john.stultz@linaro.org>2013-05-08 15:55:50 -0700
commit5cf418c983653d0cbb450ab10cad0ef9d5383adb (patch)
treee0ffee89d139e1464d039d3f4dacabaa44ef9540 /drivers/mtd
parentc7de5f559828d44cbd0b7ff8035bfa0a0b7cf8f2 (diff)
parente0fd9affeb64088eff407dfc98bbd3a5c17ea479 (diff)
Merge remote-tracking branch 'linus/master' into linaro-android-3.10-experimental-merge
Conflicts: drivers/leds/Kconfig drivers/leds/Makefile fs/fuse/dev.c
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/mtd_blkdevs.c9
-rw-r--r--drivers/mtd/mtdblock.c4
-rw-r--r--drivers/mtd/nand/gpmi-nand/gpmi-nand.c51
-rw-r--r--drivers/mtd/nand/gpmi-nand/gpmi-nand.h3
-rw-r--r--drivers/mtd/sm_ftl.c3
5 files changed, 8 insertions, 62 deletions
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 5ad39bb5ab4c..5073cbc796d8 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -237,13 +237,12 @@ error_put:
return ret;
}
-static int blktrans_release(struct gendisk *disk, fmode_t mode)
+static void blktrans_release(struct gendisk *disk, fmode_t mode)
{
struct mtd_blktrans_dev *dev = blktrans_dev_get(disk);
- int ret = 0;
if (!dev)
- return ret;
+ return;
mutex_lock(&dev->lock);
@@ -254,13 +253,13 @@ static int blktrans_release(struct gendisk *disk, fmode_t mode)
module_put(dev->tr->owner);
if (dev->mtd) {
- ret = dev->tr->release ? dev->tr->release(dev) : 0;
+ if (dev->tr->release)
+ dev->tr->release(dev);
__put_mtd_device(dev->mtd);
}
unlock:
mutex_unlock(&dev->lock);
blktrans_dev_put(dev);
- return ret;
}
static int blktrans_getgeo(struct block_device *bdev, struct hd_geometry *geo)
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 6c6d80736fad..2aef5dda522b 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -308,7 +308,7 @@ static int mtdblock_open(struct mtd_blktrans_dev *mbd)
return 0;
}
-static int mtdblock_release(struct mtd_blktrans_dev *mbd)
+static void mtdblock_release(struct mtd_blktrans_dev *mbd)
{
struct mtdblk_dev *mtdblk = container_of(mbd, struct mtdblk_dev, mbd);
@@ -333,8 +333,6 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd)
mutex_unlock(&mtdblks_lock);
pr_debug("ok\n");
-
- return 0;
}
static int mtdblock_flush(struct mtd_blktrans_dev *dev)
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 717881a3d1b8..25ecfa1822a8 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -36,7 +36,6 @@
#define GPMI_NAND_GPMI_REGS_ADDR_RES_NAME "gpmi-nand"
#define GPMI_NAND_BCH_REGS_ADDR_RES_NAME "bch"
#define GPMI_NAND_BCH_INTERRUPT_RES_NAME "bch"
-#define GPMI_NAND_DMA_INTERRUPT_RES_NAME "gpmi-dma"
/* add our owner bbt descriptor */
static uint8_t scan_ff_pattern[] = { 0xff };
@@ -420,28 +419,6 @@ static void release_bch_irq(struct gpmi_nand_data *this)
free_irq(i, this);
}
-static bool gpmi_dma_filter(struct dma_chan *chan, void *param)
-{
- struct gpmi_nand_data *this = param;
- int dma_channel = (int)this->private;
-
- if (!mxs_dma_is_apbh(chan))
- return false;
- /*
- * only catch the GPMI dma channels :
- * for mx23 : MX23_DMA_GPMI0 ~ MX23_DMA_GPMI3
- * (These four channels share the same IRQ!)
- *
- * for mx28 : MX28_DMA_GPMI0 ~ MX28_DMA_GPMI7
- * (These eight channels share the same IRQ!)
- */
- if (dma_channel == chan->chan_id) {
- chan->private = &this->dma_data;
- return true;
- }
- return false;
-}
-
static void release_dma_channels(struct gpmi_nand_data *this)
{
unsigned int i;
@@ -455,36 +432,10 @@ static void release_dma_channels(struct gpmi_nand_data *this)
static int acquire_dma_channels(struct gpmi_nand_data *this)
{
struct platform_device *pdev = this->pdev;
- struct resource *r_dma;
- struct device_node *dn;
- u32 dma_channel;
- int ret;
struct dma_chan *dma_chan;
- dma_cap_mask_t mask;
-
- /* dma channel, we only use the first one. */
- dn = pdev->dev.of_node;
- ret = of_property_read_u32(dn, "fsl,gpmi-dma-channel", &dma_channel);
- if (ret) {
- pr_err("unable to get DMA channel from dt.\n");
- goto acquire_err;
- }
- this->private = (void *)dma_channel;
-
- /* gpmi dma interrupt */
- r_dma = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
- GPMI_NAND_DMA_INTERRUPT_RES_NAME);
- if (!r_dma) {
- pr_err("Can't get resource for DMA\n");
- goto acquire_err;
- }
- this->dma_data.chan_irq = r_dma->start;
/* request dma channel */
- dma_cap_zero(mask);
- dma_cap_set(DMA_SLAVE, mask);
-
- dma_chan = dma_request_channel(mask, gpmi_dma_filter, this);
+ dma_chan = dma_request_slave_channel(&pdev->dev, "rx-tx");
if (!dma_chan) {
pr_err("Failed to request DMA channel.\n");
goto acquire_err;
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
index 072947731277..a7685e3a8748 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
@@ -20,7 +20,7 @@
#include <linux/mtd/nand.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
-#include <linux/fsl/mxs-dma.h>
+#include <linux/dmaengine.h>
#define GPMI_CLK_MAX 5 /* MX6Q needs five clocks */
struct resources {
@@ -180,7 +180,6 @@ struct gpmi_nand_data {
/* DMA channels */
#define DMA_CHANS 8
struct dma_chan *dma_chans[DMA_CHANS];
- struct mxs_dma_data dma_data;
enum dma_ops_type last_dma_type;
enum dma_ops_type dma_type;
struct completion dma_done;
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index 8dd6ba52404a..f9d5615c5727 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -1107,7 +1107,7 @@ static int sm_flush(struct mtd_blktrans_dev *dev)
}
/* outside interface: device is released */
-static int sm_release(struct mtd_blktrans_dev *dev)
+static void sm_release(struct mtd_blktrans_dev *dev)
{
struct sm_ftl *ftl = dev->priv;
@@ -1116,7 +1116,6 @@ static int sm_release(struct mtd_blktrans_dev *dev)
cancel_work_sync(&ftl->flush_work);
sm_cache_flush(ftl);
mutex_unlock(&ftl->mutex);
- return 0;
}
/* outside interface: get geometry */