On 9/4/25 2:13 PM, Fangzhi Zuo wrote:

Disable dpcd probe quirk to native aux.

Cc: stable@vger.kernel.org # 6.16.y: 5281cbe0b55a Cc: stable@vger.kernel.org # 6.16.y: 0b4aa85e8981 Cc: stable@vger.kernel.org # 6.16.y: b87ed522b364 Cc: stable@vger.kernel.org # 6.16.y Signed-off-by: Fangzhi Zuo Jerry.Zuo@amd.com Reviewed-by: Imre Deak imre.deak@intel.com

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4500 Reviewed-by: Mario Limonciello mario.limonciello@amd.com

---

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 1 + 1 file changed, 1 insertion(+)

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 25e8befbcc47..99fd064324ba 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 @@ -809,6 +809,7 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm, drm_dp_aux_init(&aconnector->dm_dp_aux.aux); drm_dp_cec_register_connector(&aconnector->dm_dp_aux.aux, &aconnector->base);

• drm_dp_dpcd_set_probe(&aconnector->dm_dp_aux.aux, false);

if (aconnector->base.connector_type == DRM_MODE_CONNECTOR_eDP) return;