Commit bb6785c1 authored Jan 10, 2020 by Nicholas Kazlauskas Committed by Alex Deucher Jan 22, 2020

drm/amd/display: Do DMCUB hw_init before DC



[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>

parent 5ea39850

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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(

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