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drm/amd/display: Clear edid when unplug mst connector

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[Why]
When unplug one sst monitor from a mst hub and plug in the same
port with another sst monitor, we don't read the corresponding
edid. That's because we detect there is already an edid stored in
aconnector->edid which is a stale one.

[How]
Clean up aconnector->edid when unplug mst connector.

Reviewed-by: Hersen Wu <hersen.wu@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wayne Lin 2022-06-22 19:36:49 +08:00 committed by Alex Deucher
parent 9dfc3ee1b0
commit 922e7ee31d
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
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@ -160,6 +160,7 @@ amdgpu_dm_mst_connector_early_unregister(struct drm_connector *connector)
dc_sink_release(dc_sink);
aconnector->dc_sink = NULL;
aconnector->edid = NULL;
}
drm_modeset_unlock(&root->mst_mgr.base.lock);
}
@ -411,6 +412,7 @@ dm_dp_mst_detect(struct drm_connector *connector,
dc_sink_release(aconnector->dc_sink);
aconnector->dc_sink = NULL;
aconnector->edid = NULL;
}
return connection_status;