[V7 02/45] drm/vkms: Round fixp2int conversion in lerp_u16

Louis Chauvet louis.chauvet at bootlin.com
Tue Feb 25 09:37:03 UTC 2025



Le 20/12/2024 à 05:33, Alex Hung a écrit :
> From: Harry Wentland <harry.wentland at amd.com>
> 
> fixp2int always rounds down, fixp2int_ceil rounds up. We need
> the new fixp2int_round.
> 
> Signed-off-by: Alex Hung <alex.hung at amd.com>
> Signed-off-by: Harry Wentland <harry.wentland at amd.com>
> Reviewed-by: Louis Chauvet <louis.chauvet at bootlin.com>

Hi,

Can I extract this patch from the series and apply it on drm-misc-next?

Thanks,
Louis Chauvet

> ---
>   drivers/gpu/drm/vkms/vkms_composer.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
> index e7441b227b3c..3d6785d081f2 100644
> --- a/drivers/gpu/drm/vkms/vkms_composer.c
> +++ b/drivers/gpu/drm/vkms/vkms_composer.c
> @@ -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)

-- 
Louis Chauvet, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com



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