This is a note to let you know that I've just added the patch titled
drm/amd/display: Ignore Cable ID Feature
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-ignore-cable-id-feature.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2a68c185f3d713c8b1f388ef5839a142626daefe
Author: Fangzhi Zuo <Jerry.Zuo@xxxxxxx>
Date: Thu Oct 20 11:46:41 2022 -0400
drm/amd/display: Ignore Cable ID Feature
[ Upstream commit 14aed119942f6c2f1286022323139f7404db5d2b ]
Ignore cable ID for DP2 receivers that does not support the feature.
Tested-by: Mark Broadworth <mark.broadworth@xxxxxxx>
Reviewed-by: Roman Li <Roman.Li@xxxxxxx>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 3be70848b202..54c76ed1ad75 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1549,6 +1549,9 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
adev->dm.dc->debug.visual_confirm = amdgpu_dc_visual_confirm;
+ /* TODO: Remove after DP2 receiver gets proper support of Cable ID feature */
+ adev->dm.dc->debug.ignore_cable_id = true;
+
r = dm_dmub_hw_init(adev);
if (r) {
DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r);
