1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index e15b4aebe2b6..b088e05fd736 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1376,6 +1376,24 @@ void __exit msm_dp_unregister(void)
 	platform_driver_unregister(&dp_display_driver);
 }
 
+bool msm_dp_is_yuv_420_enabled(const struct msm_dp *dp_display,
+			       const struct drm_display_mode *mode)
+{
+	struct dp_display_private *dp;
+	const struct drm_display_info *info;
+
+	dp = container_of(dp_display, struct dp_display_private, dp_display);
+	info = &dp_display->connector->display_info;
+
+	return dp->panel->vsc_sdp_supported && drm_mode_is_420_only(info, mode);
+}
+
+bool msm_dp_needs_periph_flush(const struct msm_dp *dp_display,
+			       const struct drm_display_mode *mode)
+{
+	return msm_dp_is_yuv_420_enabled(dp_display, mode);
+}
+
 bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
 {
 	struct dp_display_private *dp;