diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index 717d97191dda..62cb59f00929 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -3795,6 +3795,7 @@ static int trigger_hpd_mst_set(void *data, u64 val) struct amdgpu_dm_connector *aconnector; struct drm_connector *connector; struct dc_link *link = NULL; + int ret; if (val == 1) { drm_connector_list_iter_begin(dev, &iter); @@ -3806,7 +3807,9 @@ static int trigger_hpd_mst_set(void *data, u64 val) dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD); mutex_unlock(&adev->dm.dc_lock); - drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true); + ret = drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true); + if (ret < 0) + DRM_ERROR("DM_MST: Failed to set the device into MST mode!"); } } } else if (val == 0) { |