OMAP: DSS2: move set/get_update_mode()

Move set/get_update_mode() from omap_dss_device to omap_dss_driver.

This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index b0adfb5..c720842 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -1226,8 +1226,8 @@
 		if (display->resume)
 			r = display->resume(display);
 
-		if (r == 0 && display->get_update_mode &&
-				display->get_update_mode(display) ==
+		if (r == 0 && display->driver->get_update_mode &&
+				display->driver->get_update_mode(display) ==
 				OMAP_DSS_UPDATE_MANUAL)
 			do_update = 1;
 
@@ -2193,6 +2193,7 @@
 	}
 
 	if (def_display) {
+		struct omap_dss_driver *dssdrv = def_display->driver;
 #ifndef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE
 		u16 w, h;
 #endif
@@ -2206,25 +2207,25 @@
 		/* set the update mode */
 		if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
 #ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE
-			if (def_display->driver->enable_te)
-				def_display->driver->enable_te(def_display, 1);
-			if (def_display->set_update_mode)
-				def_display->set_update_mode(def_display,
+			if (dssdrv->enable_te)
+				dssdrv->enable_te(def_display, 1);
+			if (dssdrv->set_update_mode)
+				dssdrv->set_update_mode(def_display,
 						OMAP_DSS_UPDATE_AUTO);
 #else /* MANUAL_UPDATE */
-			if (def_display->driver->enable_te)
-				def_display->driver->enable_te(def_display, 0);
-			if (def_display->set_update_mode)
-				def_display->set_update_mode(def_display,
+			if (dssdrv->enable_te)
+				dssdrv->enable_te(def_display, 0);
+			if (dssdrv->set_update_mode)
+				dssdrv->set_update_mode(def_display,
 						OMAP_DSS_UPDATE_MANUAL);
 
-			def_display->driver->get_resolution(def_display,
+			dssdrv->get_resolution(def_display,
 					&w, &h);
 			def_display->update(def_display, 0, 0, w, h);
 #endif
 		} else {
-			if (def_display->set_update_mode)
-				def_display->set_update_mode(def_display,
+			if (dssdrv->set_update_mode)
+				dssdrv->set_update_mode(def_display,
 						OMAP_DSS_UPDATE_AUTO);
 		}
 	}