OMAPDSS: OVERLAY/MANAGER: Get device via output

A manager is not connected to a device directly any more. It first connects
to an output, and then to the display. Update overlay and manager get_device ops
to return the device via the connected output.
Signed-off-by: NArchit Taneja <archit@ti.com>

drivers/video/omap2/dss/manager.c

@@ -38,7 +38,7 @@ static struct omap_overlay_manager *managers;
 
 static inline struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_manager *mgr)
 {
-	return mgr->device;
+	return mgr->output ? mgr->output->device : NULL;
 }
 
 static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)

drivers/video/omap2/dss/overlay.c

@@ -40,7 +40,9 @@ static struct omap_overlay *overlays;
 
 static inline struct omap_dss_device *dss_ovl_get_device(struct omap_overlay *ovl)
 {
-	return ovl->manager ? ovl->manager->device : NULL;
+	return ovl->manager ?
+		(ovl->manager->output ? ovl->manager->output->device : NULL) :
+		NULL;
 }
 
 int omap_dss_get_num_overlays(void)