drm/amd/display: WBSCL filter init calculation fixes

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* Previous code did some calculations with a mix of normal integers and
  integers aligned as U2.24 fixed-point values.
* There were bugs in the conversion of the final result into the
  S4.19 values required for the registers.

Signed-off-by: Ken Chalmers <ken.chalmers@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Ken Chalmers 2018-01-17 14:17:40 -05:00 • committed by Alex Deucher

parent f774b33982

commit a6e59fa806

2 changed files with 12 additions and 0 deletions

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9

drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c

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3

drivers/gpu/drm/amd/display/include/fixed31_32.h

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