drm: Add HDMI stereo 3D flags to struct drm_mode_modeinfo

HDMI 1.4a defines a few layouts that we'd like to expose. This commits
add new modeinfo flags that can be used to list the supported stereo
layouts (when querying the list of modes) and to set a given stereo 3D
mode (when setting a mode).

v2: Add a drm_mode_is_stereo() helper

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 24f499569a2f..825d6fad0981 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -180,6 +180,20 @@ struct drm_display_mode {
         int hsync;              /* in kHz */
 };
 
+#define DRM_MODE_FLAG_3D_MASK   (DRM_MODE_FLAG_3D_FRAME_PACKING         | \
+                                 DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE     | \
+                                 DRM_MODE_FLAG_3D_LINE_ALTERNATIVE      | \
+                                 DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL     | \
+                                 DRM_MODE_FLAG_3D_L_DEPTH               | \
+                                 DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH | \
+                                 DRM_MODE_FLAG_3D_TOP_AND_BOTTOM        | \
+                                 DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF)
+
+static inline bool drm_mode_is_stereo(const struct drm_display_mode *mode)
+{
+        return mode->flags & DRM_MODE_FLAG_3D_MASK;
+}
+
 enum drm_connector_status {
         connector_status_connected = 1,
         connector_status_disconnected = 2,