1 files changed, 2 insertions, 0 deletions

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index eb6b8dc971d9..50cedadc9fcc 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -128,6 +128,8 @@ enum drm_mode_status {
 #define CRTC_INTERLACE_HALVE_V  (1 << 0) /* halve V values for interlacing */
 #define CRTC_STEREO_DOUBLE      (1 << 1) /* adjust timings for stereo modes */
 
+#define DRM_MODE_FLAG_3D_MAX    DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF
+
 struct drm_display_mode {
         /* Header */
         struct list_head head;