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drm/vkms: Round fixp2int conversion in lerp_u16

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[ Upstream commit 8ec43c58d3 ]

fixp2int always rounds down, fixp2int_ceil rounds up. We need
the new fixp2int_round.

Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241220043410.416867-3-alex.hung@amd.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Harry Wentland
2024-12-19 21:33:08 -07:00
committed by Greg Kroah-Hartman
parent fcfb7ea1f4
commit 791eaeaa09
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/vkms/vkms_composer.c
+1 -1
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@@ -98,7 +98,7 @@ static u16 lerp_u16(u16 a, u16 b, s64 t)
s64 delta = drm_fixp_mul(b_fp - a_fp, t);
return drm_fixp2int(a_fp + delta);
return drm_fixp2int_round(a_fp + delta);
}
static s64 get_lut_index(const struct vkms_color_lut *lut, u16 channel_value)