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| author | Wayne Lin <Wayne.Lin@amd.com> | 2024-05-23 12:18:07 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-07-08 16:51:02 -0400 |
| commit | e33697141bac18906345ea46533a240f1ad3cd21 (patch) | |
| tree | 20567fd9f832d4ace83b229a2b1c03fcfd7edb5b /drivers/gpu/drm/amd/amdgpu/amdgpu_mca.c | |
| parent | 320debca1ba3a81c87247eac84eff976ead09ee0 (diff) | |
drm/amd/display: Solve mst monitors blank out problem after resume
[Why]
In dm resume, we firstly restore dc state and do the mst resume for topology
probing thereafter. If we change dpcd DP_MSTM_CTRL value after LT in mst reume,
it will cause light up problem on the hub.
[How]
Revert commit 202dc359adda ("drm/amd/display: Defer handling mst up request in resume").
And adjust the reason to trigger dc_link_detect by DETECT_REASON_RESUMEFROMS3S4.
Cc: stable@vger.kernel.org
Fixes: 202dc359adda ("drm/amd/display: Defer handling mst up request in resume")
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Reviewed-by: Fangzhi Zuo <jerry.zuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_mca.c')
0 files changed, 0 insertions, 0 deletions