diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2020-12-17 20:11:36 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-12-23 23:03:08 +0300 |
| commit | 05211e7fbbf042dd7f51155ebe64eb2ecacb25cb (patch) | |
| tree | deb6e5c7b6ed97d304fc7c76f97a98e4bf5f2e93 /drivers/gpu/drm | |
| parent | e75a9db3c59e923f54a36870a7cc339afe9e611b (diff) | |
| download | linux-05211e7fbbf042dd7f51155ebe64eb2ecacb25cb.tar.xz | |
drm/amdgpu: only set DP subconnector type on DP and eDP connectors
Fixes a crash in drm_object_property_set_value() because the property
is not set for internal DP ports that connect to a bridge chips
(e.g., DP to VGA or DP to LVDS).
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=210739
Fixes: 65bf2cf95d3ade ("drm/amdgpu: utilize subconnector property for DP through atombios")
Tested-By: Kris Karas <bugs-a17@moonlit-rail.com>
Cc: Oleg Vasilev <oleg.vasilev@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.10.x
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c index 65d1b23d7e74..b9c11c2b2885 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c @@ -1414,10 +1414,12 @@ out: pm_runtime_put_autosuspend(connector->dev->dev); } - drm_dp_set_subconnector_property(&amdgpu_connector->base, - ret, - amdgpu_dig_connector->dpcd, - amdgpu_dig_connector->downstream_ports); + if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort || + connector->connector_type == DRM_MODE_CONNECTOR_eDP) + drm_dp_set_subconnector_property(&amdgpu_connector->base, + ret, + amdgpu_dig_connector->dpcd, + amdgpu_dig_connector->downstream_ports); return ret; } |