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authorAlex Deucher <alexander.deucher@amd.com>2011-09-02 14:23:09 +0000
committerDave Airlie <airlied@redhat.com>2011-09-06 11:46:36 +0100
commitb06947b50053f2d21ad8ddf218cdb64fc8026896 (patch)
treebdf1ca814dd80ea35273ef62390a0f2f7d260b4b /drivers/gpu/drm/radeon/radeon_display.c
parentddf28352b80c86754a6424e3a61e8bdf9213b3c7 (diff)
drm/radeon/kms: fix DP detect and EDID fetch for DP bridges
Sink type is always DP for DP bridges and EDID fetch on DP bridges is always i2c over aux rather than plain i2c. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_display.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 1a858944e4f3..6cc17fb96a57 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -707,16 +707,21 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
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->base.connector_type == DRM_MODE_CONNECTOR_eDP) ||
+ radeon_connector_encoder_is_dp_bridge(&radeon_connector->base)) {
struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
+
if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus)
- radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter);
- }
- if (!radeon_connector->ddc_bus)
- return -1;
- if (!radeon_connector->edid) {
- radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
+ radeon_connector->edid = drm_get_edid(&radeon_connector->base,
+ &dig->dp_i2c_bus->adapter);
+ else if (radeon_connector->ddc_bus && !radeon_connector->edid)
+ radeon_connector->edid = drm_get_edid(&radeon_connector->base,
+ &radeon_connector->ddc_bus->adapter);
+ } else {
+ if (radeon_connector->ddc_bus && !radeon_connector->edid)
+ radeon_connector->edid = drm_get_edid(&radeon_connector->base,
+ &radeon_connector->ddc_bus->adapter);
}
if (!radeon_connector->edid) {