drm/amd/display: Map DSC resources 1-to-1 if numbers of OPPs and DSCs are equal

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[why]
On ASICs where number of DSCs is the same as OPPs there's no need
for DSC resource management. Mappping 1-to-1 fixes mode-set- or S3-
-related issues for such platforms.

[how]
Map DSC resources 1-to-1 to pipes only if number of OPPs is the same
as number of DSCs. This will still keep other ASICs working.
A follow-up patch to fix mode-set issues on those ASICs will be
required if testing shows issues with mode set.

Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Nikola Cornij 2019-11-07 13:06:48 -05:00 • committed by Alex Deucher

parent 10f51857b7

commit eab4bb97c8

1 changed files with 10 additions and 3 deletions

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drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

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