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| author |   Wayne Lin <Wayne.Lin@amd.com> | 2021-08-17 18:58:31 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-07-20 16:04:39 -0400 |
| commit | 8b076fa7c5befd1d3e1d892ae466f5334e4c6c99 (patch) | |
| tree | de00b0db3397481e30b7e41a85e37e9785e56184 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h | |
| parent | drm/amd/display: fix trigger_hotplug to support mst case (diff) | |
| download | linux-dev-8b076fa7c5befd1d3e1d892ae466f5334e4c6c99.tar.xz linux-dev-8b076fa7c5befd1d3e1d892ae466f5334e4c6c99.zip | |
drm/amd/display: Add is_mst_connector debugfs entry
[Why & How]
Add "is_mst_connector" debugfs entry to help distinguish whether
a connector is in a mst topology or not.
Access it with the following command:
cat /sys/kernel/debug/dri/0/DP-X/is_mst_connector
Result:
- "root" stands for the root connector of the topology
- "branch" stands for branch device of the topology
- "end" stands for leaf node connector of the topology
- "no" stands for the connector is not a device of a mst topology
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h')
0 files changed, 0 insertions, 0 deletions