3 files changed, 24 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index e8a120771ac6..5ad8cc798235 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -87,6 +87,16 @@ struct regulator *dss_get_vdds_sdi(void)
 	return reg;
 }
 
+int dss_set_min_bus_tput(struct device *dev, unsigned long tput)
+{
+	struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
+
+	if (pdata->set_min_bus_tput)
+		return pdata->set_min_bus_tput(dev, tput);
+	else
+		return 0;
+}
+
 #if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
 static int dss_debug_show(struct seq_file *s, void *unused)
 {
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index bd2d5e159463..e731aa46eeaf 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -829,11 +829,24 @@ static int omap_dsshw_remove(struct platform_device *pdev)
 static int dss_runtime_suspend(struct device *dev)
 {
 	dss_save_context();
+	dss_set_min_bus_tput(dev, 0);
 	return 0;
 }
 
 static int dss_runtime_resume(struct device *dev)
 {
+	int r;
+	/*
+	 * Set an arbitrarily high tput request to ensure OPP100.
+	 * What we should really do is to make a request to stay in OPP100,
+	 * without any tput requirements, but that is not currently possible
+	 * via the PM layer.
+	 */
+
+	r = dss_set_min_bus_tput(dev, 1000000000);
+	if (r)
+		return r;
+
 	dss_restore_context();
 	return 0;
 }
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index d4b3dff2ead3..42f8f62cf3d4 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -162,6 +162,7 @@ struct platform_device;
 struct bus_type *dss_get_bus(void);
 struct regulator *dss_get_vdds_dsi(void);
 struct regulator *dss_get_vdds_sdi(void);
+int dss_set_min_bus_tput(struct device *dev, unsigned long tput);
 
 /* apply */
 void dss_apply_init(void);