drm/amd/dm: Understand why attaching path/tile properties are needed
authorLyude Paul <lyude@redhat.com>
Mon, 19 Nov 2018 19:44:55 +0000 (19:44 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 16 Sep 2019 06:21:55 +0000 (08:21 +0200)
[ Upstream commit 04ac4b0ed412f65230b456fcd9aa07e13befff89 ]

Path property is used for userspace to know what MST connector goes to what actual DRM DisplayPort connector, the tiling property is for tiling configurations. Not sure what else there is to figure out.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

index 59445c8..c85bea7 100644 (file)
@@ -377,9 +377,6 @@ dm_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
        drm_connector_attach_encoder(&aconnector->base,
                                     &aconnector->mst_encoder->base);
 
-       /*
-        * TODO: understand why this one is needed
-        */
        drm_object_attach_property(
                &connector->base,
                dev->mode_config.path_property,