1 files changed, 17 insertions, 14 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index bfa65629517b..256e82bd91dd 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -431,24 +431,27 @@ nouveau_connector_set_property(struct drm_connector *connector,
 }
 
 static struct drm_display_mode *
-nouveau_connector_native_mode(struct nouveau_connector *connector)
+nouveau_connector_native_mode(struct drm_connector *connector)
 {
-        struct drm_device *dev = connector->base.dev;
+        struct drm_connector_helper_funcs *helper = connector->helper_private;
+        struct nouveau_connector *nv_connector = nouveau_connector(connector);
+        struct drm_device *dev = connector->dev;
         struct drm_display_mode *mode, *largest = NULL;
         int high_w = 0, high_h = 0, high_v = 0;
 
-        /* Use preferred mode if there is one.. */
-        list_for_each_entry(mode, &connector->base.probed_modes, head) {
+        list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
+                if (helper->mode_valid(connector, mode) != MODE_OK)
+                        continue;
+
+                /* Use preferred mode if there is one.. */
                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
                         NV_DEBUG_KMS(dev, "native mode from preferred\n");
                         return drm_mode_duplicate(dev, mode);
                 }
-        }
 
-        /* Otherwise, take the resolution with the largest width, then height,
-         * then vertical refresh
-         */
-        list_for_each_entry(mode, &connector->base.probed_modes, head) {
+                /* Otherwise, take the resolution with the largest width, then
+                 * height, then vertical refresh
+                 */
                 if (mode->hdisplay < high_w)
                         continue;
 
@@ -552,7 +555,7 @@ nouveau_connector_get_modes(struct drm_connector *connector)
          */
         if (!nv_connector->native_mode)
                 nv_connector->native_mode =
-                        nouveau_connector_native_mode(nv_connector);
+                        nouveau_connector_native_mode(connector);
         if (ret == 0 && nv_connector->native_mode) {
                 struct drm_display_mode *mode;
 
@@ -583,9 +586,9 @@ nouveau_connector_mode_valid(struct drm_connector *connector,
 
         switch (nv_encoder->dcb->type) {
         case OUTPUT_LVDS:
-                BUG_ON(!nv_connector->native_mode);
-                if (mode->hdisplay > nv_connector->native_mode->hdisplay ||
-                    mode->vdisplay > nv_connector->native_mode->vdisplay)
+                if (nv_connector->native_mode &&
+                    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
+                     mode->vdisplay > nv_connector->native_mode->vdisplay))
                         return MODE_PANEL;
 
                 min_clock = 0;
@@ -727,7 +730,7 @@ nouveau_connector_create_lvds(struct drm_device *dev,
         if (ret == 0)
                 goto out;
         nv_connector->detected_encoder = nv_encoder;
-        nv_connector->native_mode = nouveau_connector_native_mode(nv_connector);
+        nv_connector->native_mode = nouveau_connector_native_mode(connector);
         list_for_each_entry_safe(mode, temp, &connector->probed_modes, head)
                 drm_mode_remove(connector, mode);