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>

diff --git a/drivers/gpu/drm/amd/display/dc/basics/conversion.c b/drivers/gpu/drm/amd/display/dc/basics/conversion.c
index 23c9a0ec01817c6a23be8fdbbd5ecbdf5816c585..310964915a83801c9cc914af3d5291a231ab7c38 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/basics/conversion.c
+++ b/drivers/gpu/drm/amd/display/dc/basics/conversion.c
@@ -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));