drm/amd/display: Workaround wrong HDR colorimetry with some receivers

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[Why]
Some scalers do not pick up color space updates unless the DP link
is disabled/re-enabled which can result in incorrect/washed out
HDR colors in some cases.

[How]
Call set_dpms_on to disable the link, re-train and re-enable with the
updated output color space.

Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Ilya Bakoulin 2023-04-14 12:46:48 -04:00 • committed by Alex Deucher

parent 9ab367f838

commit 5b7bee5b44

2 changed files with 8 additions and 0 deletions

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7

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

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1

drivers/gpu/drm/amd/display/dc/dc.h

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