2 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index b5802cf6664e..d8d65f4232a9 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -80,6 +80,7 @@ static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
 {
         { DRM_MODE_DITHERING_OFF, "Off" },
         { DRM_MODE_DITHERING_ON, "On" },
+        { DRM_MODE_DITHERING_AUTO, "Automatic" },
 };
 
 /*
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h
index c5ba1636613c..0fc7397c8f1f 100644
--- a/include/drm/drm_mode.h
+++ b/include/drm/drm_mode.h
@@ -74,6 +74,7 @@
 /* Dithering mode options */
 #define DRM_MODE_DITHERING_OFF  0
 #define DRM_MODE_DITHERING_ON   1
+#define DRM_MODE_DITHERING_AUTO 2
 
 /* Dirty info options */
 #define DRM_MODE_DIRTY_OFF      0