Commit 922e7ee3 authored Jun 22, 2022 by Wayne Lin Committed by Alex Deucher Jul 12, 2022

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



[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>

parent 9dfc3ee1

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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;