drm/amd/display: Disable DPCD Probe Quirk

Disable dpcd probe quirk to native aux.

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>
Link: https://lore.kernel.org/r/20250904191351.746707-1-Jerry.Zuo@amd.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit c5f4fb40584ee591da9fa090c6f265d11cbb1acf)
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

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 7187d5aedf0a501256b9e2316890b6d639338efb..77a9d2c7d31856067e730b5f8fd2251231611c94 100644 (file)
--- 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;