From: Wayne Lin <Wayne.Lin@xxxxxxx> [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@xxxxxxx> Acked-by: Solomon Chiu <solomon.chiu@xxxxxxx> Signed-off-by: Wayne Lin <Wayne.Lin@xxxxxxx> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index ee5d6fa34a6b..8237029cedf5 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -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; -- 2.25.1
