diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index a27c4385702b..836bf9ba620d 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2418,6 +2418,7 @@ static void resume_mst_branch_status(struct drm_dp_mst_topology_mgr *mgr) ret = drm_dp_dpcd_writeb(mgr->aux, DP_MSTM_CTRL, DP_MST_EN | + DP_UP_REQ_EN | DP_UPSTREAM_IS_SRC); if (ret < 0) { drm_dbg_kms(mgr->dev, "mst write failed - undocked during suspend?\n"); @@ -3017,7 +3018,7 @@ static int dm_resume(void *handle) } else { mutex_lock(&dm->dc_lock); dc_exit_ips_for_hw_access(dm->dc); - dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD); + dc_link_detect(aconnector->dc_link, DETECT_REASON_RESUMEFROMS3S4); mutex_unlock(&dm->dc_lock); } |