1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/omapdrm/omap_connector.c b/drivers/gpu/drm/omapdrm/omap_connector.c
index b8317b697083..98f5ca29444a 100644
--- a/drivers/gpu/drm/omapdrm/omap_connector.c
+++ b/drivers/gpu/drm/omapdrm/omap_connector.c
@@ -268,6 +268,8 @@ static int omap_connector_mode_valid(struct drm_connector *connector,
                                  struct drm_display_mode *mode)
 {
         struct omap_connector *omap_connector = to_omap_connector(connector);
+        enum omap_channel channel = omap_connector->output->dispc_channel;
+        struct omap_drm_private *priv = connector->dev->dev_private;
         struct omap_dss_device *dssdev;
         struct videomode vm = {0};
         struct drm_device *dev = connector->dev;
@@ -277,6 +279,10 @@ static int omap_connector_mode_valid(struct drm_connector *connector,
         drm_display_mode_to_videomode(mode, &vm);
         mode->vrefresh = drm_mode_vrefresh(mode);
 
+        r = priv->dispc_ops->mgr_check_timings(priv->dispc, channel, &vm);
+        if (r)
+                goto done;
+
         for (dssdev = omap_connector->output; dssdev; dssdev = dssdev->next) {
                 if (!dssdev->ops->check_timings)
                         continue;