diff options
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index f07af6786cec..cc7bd58369df 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -5188,10 +5188,14 @@ static void drm_parse_cea_ext(struct drm_connector *connector, /* The existence of a CEA block should imply RGB support */ info->color_formats = DRM_COLOR_FORMAT_RGB444; - if (edid_ext[3] & EDID_CEA_YCRCB444) - info->color_formats |= DRM_COLOR_FORMAT_YCBCR444; - if (edid_ext[3] & EDID_CEA_YCRCB422) - info->color_formats |= DRM_COLOR_FORMAT_YCBCR422; + + /* CTA DisplayID Data Block does not have byte #3 */ + if (edid_ext[0] == CEA_EXT) { + if (edid_ext[3] & EDID_CEA_YCRCB444) + info->color_formats |= DRM_COLOR_FORMAT_YCBCR444; + if (edid_ext[3] & EDID_CEA_YCRCB422) + info->color_formats |= DRM_COLOR_FORMAT_YCBCR422; + } if (cea_db_offsets(edid_ext, &start, &end)) return; |