drm/amd/display: Fix vupdate and vline position calculation

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[how]
Large deltas for periodic interrupts could result in the interrupt not
being programmed properly and thus not firing.

[why]
Add proper wrap-around support for calculating VUPDATE and VLINE
positions.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Aric Cyr 2022-09-23 17:09:54 -04:00 • committed by Alex Deucher

parent baec651f41

commit 51619c6713

1 changed files with 25 additions and 35 deletions

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drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

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