drm/amd/display: write all 4 bytes of FFE_PRESET dpcd value

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[why]
According to specs, it expects us to write all 4 bytes even if
current lane count is less than 4.

Reviewed-by: George Shen <George.Shen@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Wenjing Liu 2022-09-22 14:36:32 -04:00 • committed by Alex Deucher

parent b808a7eb30

commit baec651f41

1 changed files with 18 additions and 19 deletions

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37

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

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