drm: track CEA version number if present
[linux-2.6.git] / drivers / gpu / drm / drm_edid.c
index 0929219..e12f8b0 100644 (file)
@@ -1439,6 +1439,8 @@ EXPORT_SYMBOL(drm_detect_monitor_audio);
 static void drm_add_display_info(struct edid *edid,
                                 struct drm_display_info *info)
 {
+       u8 *edid_ext;
+
        info->width_mm = edid->width_cm * 10;
        info->height_mm = edid->height_cm * 10;
 
@@ -1483,6 +1485,13 @@ static void drm_add_display_info(struct edid *edid,
                info->color_formats = DRM_COLOR_FORMAT_YCRCB444;
        if (info->color_formats & DRM_EDID_FEATURE_RGB_YCRCB422)
                info->color_formats = DRM_COLOR_FORMAT_YCRCB422;
+
+       /* Get data from CEA blocks if present */
+       edid_ext = drm_find_cea_extension(edid);
+       if (!edid_ext)
+               return;
+
+       info->cea_rev = edid_ext[1];
 }
 
 /**