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drm/amd/display: Correct fixed point calculation. 

When convert from fixed31_32 to other fixed point
format use math operation round instead of floor.

Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Vitaly Prosyak 2017-11-24 15:52:33 -06:00 committed by Alex Deucher
parent 40e045a973
commit 508f60e36a
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/dc/basics/conversion.c
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@ -46,7 +46,7 @@ uint16_t fixed_point_to_int_frac(
arg));
if (d <= (uint16_t)(1 << integer_bits) - (1 / (uint16_t)divisor))
numerator = (uint16_t)dal_fixed31_32_floor(
numerator = (uint16_t)dal_fixed31_32_round(
dal_fixed31_32_mul_int(
arg,
divisor));