From: Leo Li Date: Tue, 23 Jul 2019 23:28:04 +0000 (-0400) Subject: drm/amd/display: Use connector kdev as aux device parent X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=db432cd0960cd32d02ac8ef64deeed6dfe75b7cd;p=openwrt%2Fstaging%2Fblogic.git drm/amd/display: Use connector kdev as aux device parent Set the connector's kernel device as the parent for the aux kernel device. This allows udev rules to access connector attributes when creating symlinks to aux devices. For example, the following udev rule: SUBSYSTEM=="drm_dp_aux_dev", SUBSYSTEMS=="drm", ATTRS{edid}=="*", SYMLINK+="drm_dp_aux/by-name/$id" Will create the following symlinks using the connector's name: $ ls /dev/drm_dp_aux/by-name/ card0-DP-1 card0-DP-2 card0-DP-3 Cc: Nicholas Kazlauskas Cc: Jerry (Fangzhi) Zuo Cc: Harry Wentland Signed-off-by: Leo Li Signed-off-by: Harry Wentland Reviewed-by: Nicholas Kazlauskas Link: https://patchwork.freedesktop.org/patch/msgid/20190723232808.28128-6-sunpeng.li@amd.com --- 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 6e205ee36ac3..53d2cfe62e13 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 @@ -388,7 +388,7 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm, struct amdgpu_dm_connector *aconnector) { aconnector->dm_dp_aux.aux.name = "dmdc"; - aconnector->dm_dp_aux.aux.dev = dm->adev->dev; + aconnector->dm_dp_aux.aux.dev = aconnector->base.kdev; aconnector->dm_dp_aux.aux.transfer = dm_dp_aux_transfer; aconnector->dm_dp_aux.ddc_service = aconnector->dc_link->ddc;