drm/amd/display: Fix access timeout to DPIA AUX at boot time

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[Why]
Since introduction of patch "Query DPIA HPD status.", link detection at
boot could be accessing DPIA AUX, which will not succeed until
DMUB outbox messaging is enabled and results in below dmesg logs:

[  160.840227] [drm:amdgpu_dm_process_dmub_aux_transfer_sync [amdgpu]] *ERROR* wait_for_completion_timeout timeout!

[How]
Enable DMUB outbox messaging before link detection at boot time.

Reviewed-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.0.x

...

This commit is contained in:

Stylon Wang 2022-10-24 15:36:16 +08:00 • committed by Alex Deucher

parent d09ef24303

commit 1c43a48b44

1 changed files with 6 additions and 6 deletions

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

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