1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index cf39ca90d887..f349b3920199 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -326,6 +326,9 @@ static bool intel_dsi_compute_config(struct intel_encoder *encoder,
                                                 conn_state->scaling_mode);
         }
 
+        if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
+                return false;
+
         /* DSI uses short packets for sync events, so clear mode flags for DSI */
         adjusted_mode->flags = 0;
 
@@ -1266,6 +1269,9 @@ intel_dsi_mode_valid(struct drm_connector *connector,
 
         DRM_DEBUG_KMS("\n");
 
+        if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+                return MODE_NO_DBLESCAN;
+
         if (fixed_mode) {
                 if (mode->hdisplay > fixed_mode->hdisplay)
                         return MODE_PANEL;