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drm/amd/display: Add dcdebugmask option for disabling MPO

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[Why & How]

It's useful to disable MPO when debugging or testing. Therefore, add a
dcdebugmask option to disable MPO.

Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo Li
2022-07-06 14:56:28 -04:00
committed by Alex Deucher
parent 792a0cdde3
commit 8813381a62
2 changed files with 5 additions and 0 deletions
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4
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -4197,6 +4197,10 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
for (i = 0; i < dm->dc->caps.max_planes; ++i) {
struct dc_plane_cap *plane = &dm->dc->caps.planes[i];
/* Do not create overlay if MPO disabled */
if (amdgpu_dc_debug_mask & DC_DISABLE_MPO)
break;
if (plane->type != DC_PLANE_TYPE_DCN_UNIVERSAL)
continue;