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 62cb59f00929..db56b0aa5454 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 @@ -3804,9 +3804,12 @@ static int trigger_hpd_mst_set(void *data, u64 val) if (aconnector->dc_link->type == dc_connection_mst_branch && aconnector->mst_mgr.aux) { mutex_lock(&adev->dm.dc_lock); - dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD); + ret = dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD); mutex_unlock(&adev->dm.dc_lock); + if (!ret) + DRM_ERROR("DM_MST: Failed to detect dc link!"); + 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!"); |