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authorNiels Ole Salscheider <niels_ole@salscheider-online.de>2013-01-03 19:09:28 +0100
committerAlex Deucher <alexander.deucher@amd.com>2013-01-03 15:04:38 -0500
commit0a9069d34918659bc8a89e21e69e60b2b83291a3 (patch)
tree9339581977e2ebdd73007edb1aeb260c96dfe47f /drivers/gpu/drm/radeon/radeon_display.c
parent64c56e8ce377842c8c8ff41054530480c7128c0b (diff)
drm/radeon: Properly handle DDC probe for DP bridges
DDC information can be accessed using AUX CH Fixes failure to probe monitors on some systems with DP bridge chips. agd5f: minor fixes Signed-off-by: Niels Ole Salscheider <niels_ole@salscheider-online.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_display.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 310c0e5254ba..1da2386d7cf7 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -699,10 +699,15 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
if (radeon_connector->router.ddc_valid)
radeon_router_select_ddc_port(radeon_connector);
- if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
- (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) ||
- (radeon_connector_encoder_get_dp_bridge_encoder_id(&radeon_connector->base) !=
- ENCODER_OBJECT_ID_NONE)) {
+ if (radeon_connector_encoder_get_dp_bridge_encoder_id(&radeon_connector->base) !=
+ ENCODER_OBJECT_ID_NONE) {
+ struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
+
+ if (dig->dp_i2c_bus)
+ radeon_connector->edid = drm_get_edid(&radeon_connector->base,
+ &dig->dp_i2c_bus->adapter);
+ } else if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
+ (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) {
struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||