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/dss/venc.c b/drivers/video/omap2/dss/venc.c
index d13071d..0d0dc94 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -450,6 +450,20 @@
 	return venc_panel_enable(dssdev);
 }
 
+static enum omap_dss_update_mode venc_get_update_mode(
+		struct omap_dss_device *dssdev)
+{
+	return OMAP_DSS_UPDATE_AUTO;
+}
+
+static int venc_set_update_mode(struct omap_dss_device *dssdev,
+		enum omap_dss_update_mode mode)
+{
+	if (mode != OMAP_DSS_UPDATE_AUTO)
+		return -EINVAL;
+	return 0;
+}
+
 static struct omap_dss_driver venc_driver = {
 	.probe		= venc_panel_probe,
 	.remove		= venc_panel_remove,
@@ -462,6 +476,9 @@
 	.get_resolution	= omapdss_default_get_resolution,
 	.get_recommended_bpp = omapdss_default_get_recommended_bpp,
 
+	.set_update_mode = venc_set_update_mode,
+	.get_update_mode = venc_get_update_mode,
+
 	.driver         = {
 		.name   = "venc",
 		.owner  = THIS_MODULE,
@@ -717,15 +734,6 @@
 	return 0;
 }
 
-static enum omap_dss_update_mode venc_display_get_update_mode(
-		struct omap_dss_device *dssdev)
-{
-	if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
-		return OMAP_DSS_UPDATE_AUTO;
-	else
-		return OMAP_DSS_UPDATE_DISABLED;
-}
-
 int venc_init_display(struct omap_dss_device *dssdev)
 {
 	DSSDBG("init_display\n");
@@ -739,7 +747,6 @@
 	dssdev->check_timings = venc_check_timings;
 	dssdev->get_wss = venc_get_wss;
 	dssdev->set_wss = venc_set_wss;
-	dssdev->get_update_mode = venc_display_get_update_mode;
 
 	return 0;
 }