drm: parse color format support for digital displays

EDID 1.4 digital displays report the color spaces they support in the
features block.  Add support for grabbing this data and stuffing it into
the display_info struct for driver use.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index ee1cb7012e56..9573e0ce3120 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -183,7 +183,9 @@ enum subpixel_order {
         SubPixelNone,
 };
 
-
+#define DRM_COLOR_FORMAT_RGB444         (1<<0)
+#define DRM_COLOR_FORMAT_YCRCB444       (1<<1)
+#define DRM_COLOR_FORMAT_YCRCB422       (1<<2)
 /*
  * Describes a given display (e.g. CRT or flat panel) and its limitations.
  */
@@ -201,6 +203,7 @@ struct drm_display_info {
         unsigned int bpc;
 
         enum subpixel_order subpixel_order;
+        u32 color_formats;
 
         char *raw_edid; /* if any */
 };