drm/omap: omap_display_timings: rename vsw to vsync_len

In preparation to move the stack to use the generic videmode struct for
display timing information rename the vsw member to vsync_len.

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/omap_connector.c b/drivers/gpu/drm/omapdrm/omap_connector.c
index 3d1b418..2c9b429 100644
--- a/drivers/gpu/drm/omapdrm/omap_connector.c
+++ b/drivers/gpu/drm/omapdrm/omap_connector.c
@@ -54,7 +54,7 @@ void copy_timings_omap_to_drm(struct drm_display_mode *mode,
 
 	mode->vdisplay = timings->vactive;
 	mode->vsync_start = mode->vdisplay + timings->vfp;
-	mode->vsync_end = mode->vsync_start + timings->vsw;
+	mode->vsync_end = mode->vsync_start + timings->vsync_len;
 	mode->vtotal = mode->vsync_end + timings->vbp;
 
 	mode->flags = 0;
@@ -88,7 +88,7 @@ void copy_timings_drm_to_omap(struct omap_video_timings *timings,
 
 	timings->vactive = mode->vdisplay;
 	timings->vfp = mode->vsync_start - mode->vdisplay;
-	timings->vsw = mode->vsync_end - mode->vsync_start;
+	timings->vsync_len = mode->vsync_end - mode->vsync_start;
 	timings->vbp = mode->vtotal - mode->vsync_end;
 
 	timings->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);