drm: add bit depth parsing
EDID 1.4 digital monitors report the bit depth supported in the input
field. Add support for parsing this out and storing the info in the
display_info structure for use by drivers.
[airlied: tweaked to fix inter-patch dependency]
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 5881fad..9b9bf94 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -155,7 +155,22 @@
#define DRM_EDID_INPUT_SEPARATE_SYNCS (1 << 3)
#define DRM_EDID_INPUT_BLANK_TO_BLACK (1 << 4)
#define DRM_EDID_INPUT_VIDEO_LEVEL (3 << 5)
-#define DRM_EDID_INPUT_DIGITAL (1 << 7) /* bits below must be zero if set */
+#define DRM_EDID_INPUT_DIGITAL (1 << 7)
+#define DRM_EDID_DIGITAL_DEPTH_MASK (7 << 4)
+#define DRM_EDID_DIGITAL_DEPTH_UNDEF (0 << 4)
+#define DRM_EDID_DIGITAL_DEPTH_6 (1 << 4)
+#define DRM_EDID_DIGITAL_DEPTH_8 (2 << 4)
+#define DRM_EDID_DIGITAL_DEPTH_10 (3 << 4)
+#define DRM_EDID_DIGITAL_DEPTH_12 (4 << 4)
+#define DRM_EDID_DIGITAL_DEPTH_14 (5 << 4)
+#define DRM_EDID_DIGITAL_DEPTH_16 (6 << 4)
+#define DRM_EDID_DIGITAL_DEPTH_RSVD (7 << 4)
+#define DRM_EDID_DIGITAL_TYPE_UNDEF (0)
+#define DRM_EDID_DIGITAL_TYPE_DVI (1)
+#define DRM_EDID_DIGITAL_TYPE_HDMI_A (2)
+#define DRM_EDID_DIGITAL_TYPE_HDMI_B (3)
+#define DRM_EDID_DIGITAL_TYPE_MDDI (4)
+#define DRM_EDID_DIGITAL_TYPE_DP (5)
#define DRM_EDID_FEATURE_DEFAULT_GTF (1 << 0)
#define DRM_EDID_FEATURE_PREFERRED_TIMING (1 << 1)