drm/amd/display: Ensure that DMCUB fw in use is loaded by DC and not VBIOS

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[Why?]
On wake from S3/S4, driver checks if DMUB is initialized. On S4 VBIOS loads
DMUB, and driver does not reload as it appears to be initialized already.

[How?]
Add a check for the DAL_FW bit to ensure that loaded FW is from driver and
not VBIOS.

Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Dillon Varone 2022-04-14 16:57:17 -04:00 • committed by Alex Deucher

parent 218987fdea

commit 9fe5d08fc8

1 changed files with 3 additions and 1 deletions

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drivers/gpu/drm/amd/display/dmub/src/dmub_dcn32.c

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