drm/amd/display: Use a temporary copy of the current state when updating DSC config

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[why]
When updating DSC config, a new config has to be validated before proceeding
with applying the update. Validation, however, modifies the current state.
This means DSC config validation would affect pipe re-assignment, causing
intermittent screen corruption issues when ODM is required for DSC.

[how]
- Use a copy of the current state for modified DSC config validation
- Set the update type to FULL_UPDATE to correctly validate and set the
  actual state used for committing the streams

Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Nikola Cornij 2019-11-04 17:44:23 -05:00 • committed by Alex Deucher

parent a6e4da40bd

commit f6fe4053b9

1 changed files with 24 additions and 7 deletions

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drivers/gpu/drm/amd/display/dc/core/dc.c

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