OMAPDSS: DPI displays: Take care of panel timings in the driver itself

The timings maintained in omap_dss_device(dssdev->panel.timings) should be
maintained by the panel driver itself. It's the panel drivers responsibility
to update it if a new set of timings is to be configured. The DPI interface
driver shouldn't be responsible of updating the panel timings, it's responsible
of maintianing it's own copy of timings.
Signed-off-by: Archit Taneja <archit@ti.com>

drivers/video/omap2/displays/panel-generic-dpi.c

@@ -730,6 +730,8 @@ static void generic_dpi_panel_set_timings(struct omap_dss_device *dssdev,
 
 	omapdss_dpi_set_timings(dssdev, timings);
 
+	dssdev->panel.timings = *timings;
+
 	mutex_unlock(&drv_data->lock);
 }
 

drivers/video/omap2/displays/panel-tfp410.c

@@ -234,6 +234,7 @@ static void tfp410_set_timings(struct omap_dss_device *dssdev,
 
 	mutex_lock(&ddata->lock);
 	omapdss_dpi_set_timings(dssdev, timings);
+	dssdev->panel.timings = *timings;
 	mutex_unlock(&ddata->lock);
 }
 

drivers/video/omap2/displays/panel-tpo-td043mtea1.c

@@ -483,6 +483,8 @@ static void tpo_td043_set_timings(struct omap_dss_device *dssdev,
 		struct omap_video_timings *timings)
 {
 	omapdss_dpi_set_timings(dssdev, timings);
+
+	dssdev->panel.timings = *timings;
 }
 
 static int tpo_td043_check_timings(struct omap_dss_device *dssdev,

drivers/video/omap2/dss/dpi.c

@@ -283,7 +283,6 @@ void omapdss_dpi_set_timings(struct omap_dss_device *dssdev,
 	mutex_lock(&dpi.lock);
 
 	dpi.timings = *timings;
-	dssdev->panel.timings = *timings;
 
 	if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
 		r = dispc_runtime_get();