drm/amd/display: Fix FEC_READY write on DP LT

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[Why/How]
We can miss writing FEC_READY in some cases before LT start, which
violates DP spec. Remove the condition guarding the DPCD write so that
the write happens unconditionally.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Ilya Bakoulin <ilya.bakoulin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Ilya Bakoulin 2024-04-17 14:21:28 -04:00 • committed by Alex Deucher

parent 523ee6f441

commit a8baec4623

1 changed files with 6 additions and 8 deletions

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drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_phy.c

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