drm/omap: omap_display_timings: Use display_flags for sync edge

In preparation to move the stack to use the generic videmode struct for
display timing information use display_flags for sync edge.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/gpu/drm/omapdrm/displays/encoder-tfp410.c b/drivers/gpu/drm/omapdrm/displays/encoder-tfp410.c
index eec079e..69b4fea 100644
--- a/drivers/gpu/drm/omapdrm/displays/encoder-tfp410.c
+++ b/drivers/gpu/drm/omapdrm/displays/encoder-tfp410.c
@@ -115,8 +115,9 @@ static void tfp410_disable(struct omap_dss_device *dssdev)
 
 static void tfp410_fix_timings(struct omap_video_timings *timings)
 {
-	timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
-	timings->flags |= DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE;
+	timings->flags |= DISPLAY_FLAGS_DE_HIGH |
+			  DISPLAY_FLAGS_PIXDATA_POSEDGE |
+			  DISPLAY_FLAGS_SYNC_POSEDGE;
 }
 
 static void tfp410_set_timings(struct omap_dss_device *dssdev,