drm/amd/display: Fix VBA chroma calculation for pipe splitting

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[Why]
DML failures occur for 420 modes with dynamic pipe
splitting enabled because the ChromaViewport exceeds
the ChromaSurfaceWidth.

This is caused by adding the viewport_width instead
of the viewport_width_c.

This similarly occurs for rotated modes due to the
use of viewport_height instead of viewport_height_c.

[How]
Correct the calculations.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Nicholas Kazlauskas 2020-05-22 13:24:06 -04:00 • committed by Alex Deucher

parent c0838cbee2

commit 92bfc4a196

1 changed files with 2 additions and 2 deletions

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drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c

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