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drm/amd/display: Do DMCUB hw_init before DC

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[Why]
For DMCUB enabled hardware DC has a dependency on DMCUB already being
running.

Command table offloading will fail on first modeset if DMCUB isn't
initialized first.

[How]
Perform DMCUB hardware initialization before DC.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nicholas Kazlauskas 2020-01-10 09:17:58 -05:00 committed by Alex Deucher
parent 5ea3985098
commit bb6785c121
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View file

@ -940,14 +940,14 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
goto error;
}
dc_hardware_init(adev->dm.dc);
r = dm_dmub_hw_init(adev);
if (r) {
DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r);
goto error;
}
dc_hardware_init(adev->dm.dc);
adev->dm.freesync_module = mod_freesync_create(adev->dm.dc);
if (!adev->dm.freesync_module) {
DRM_ERROR(