[PATCH v2 3/4] drm/edid: respect connector force for drm_get_edid ddc probe

Jani Nikula jani.nikula at intel.com
Fri Feb 17 15:20:53 UTC 2017


Skip DDC probe for forced connector status. Don't try to read the EDID
if the connector is forced off. Skipping probe for forced on connectors
will make more sense when drm_do_get_edid() will handle override and
firmware EDIDs.

Suggested-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/drm_edid.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 4bb50e0e7110..e1743ab276dc 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1428,7 +1428,10 @@ struct edid *drm_get_edid(struct drm_connector *connector,
 {
 	struct edid *edid;
 
-	if (!drm_probe_ddc(adapter))
+	if (connector->force == DRM_FORCE_OFF)
+		return NULL;
+
+	if (connector->force == DRM_FORCE_UNSPECIFIED && !drm_probe_ddc(adapter))
 		return NULL;
 
 	edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter);
-- 
2.1.4



More information about the dri-devel mailing list