[PATCH AUTOSEL 6.0 18/30] drm/amd/display: Ignore Cable ID Feature

[Sasha Levin]

From: Fangzhi Zuo <jerry....@amd.com>

[ Upstream commit 14aed119942f6c2f1286022323139f7404db5d2b ]

Ignore cable ID for DP2 receivers that does not support the feature.

Tested-by: Mark Broadworth <mark.broadwo...@amd.com>
Reviewed-by: Roman Li <roman...@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
Signed-off-by: Fangzhi Zuo <jerry....@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +++
 1 file changed, 3 insertions(+)

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);
-- 
2.35.1