diff options
| author | Dave Airlie <airlied@redhat.com> | 2015-02-24 09:24:04 +1000 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-03-19 12:26:51 -0400 |
| commit | 9843ead08f18270948498f37eb95d6189eed31af (patch) | |
| tree | 1453a3153aa11b3e94a1c34e7b5ac7aa1af44c41 /drivers/gpu/drm/radeon/radeon_encoders.c | |
| parent | 8f0fc088f5fff0c2e4683bc0de7fc849e7d5357a (diff) | |
| download | lwn-9843ead08f18270948498f37eb95d6189eed31af.tar.gz lwn-9843ead08f18270948498f37eb95d6189eed31af.zip | |
drm/radeon: add DisplayPort MST support (v2)
This adds initial DP 1.2 MST support to radeon, on CAYMAN
and up in theory.
This is off by default.
v2: agd5f:
- add UNIPHY3 offsets
- move atom cmd table code into atombios_encoders.c
- whitespace cleanup
- replace some magic numbers with proper defines
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_encoders.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_encoders.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index 3a297037cc17..ef99917f000d 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -247,7 +247,16 @@ radeon_get_connector_for_encoder(struct drm_encoder *encoder) list_for_each_entry(connector, &dev->mode_config.connector_list, head) { radeon_connector = to_radeon_connector(connector); - if (radeon_encoder->active_device & radeon_connector->devices) + if (radeon_encoder->is_mst_encoder) { + struct radeon_encoder_mst *mst_enc; + + if (!radeon_connector->is_mst_connector) + continue; + + mst_enc = radeon_encoder->enc_priv; + if (mst_enc->connector == radeon_connector->mst_port) + return connector; + } else if (radeon_encoder->active_device & radeon_connector->devices) return connector; } return NULL; @@ -393,6 +402,9 @@ bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder, case DRM_MODE_CONNECTOR_DVID: case DRM_MODE_CONNECTOR_HDMIA: case DRM_MODE_CONNECTOR_DisplayPort: + if (radeon_connector->is_mst_connector) + return false; + dig_connector = radeon_connector->con_priv; if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) |