drm/amd/display: Change DCN2 vupdate start programming

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[Why]
In order to ensure that incoming flips are latched and
complete immediately, we need to program the vupdate
interrupt to come during the back porch of each frame.

[How]
Program the vupdate start_line to be in the back porch
like it's done for DCN1.

Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Eryk Brol 2019-04-15 16:09:01 -04:00 • committed by Alex Deucher

parent 78b674573a

commit 7fad39ca4a

1 changed files with 3 additions and 6 deletions

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9

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

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