Re: [PATCH v10 16/30] rcar-vin: update bytesperline and sizeimage calculation

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Hi Niklas,

Thank you for the patch.

On Monday, 29 January 2018 18:34:21 EET Niklas Söderlund wrote:
> Remove over complicated logic to calculate the value for bytesperline

s/over complicated/overcomplicated/

> and sizeimage that was carried over from the soc_camera port. Update the
> calculations to match how other drivers are doing it.
> 
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> ---
>  drivers/media/platform/rcar-vin/rcar-v4l2.c | 11 ++---------
>  1 file changed, 2 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c
> b/drivers/media/platform/rcar-vin/rcar-v4l2.c index
> 1169e6a279ecfb55..bca6e204a574772f 100644
> --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
> +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> @@ -118,10 +118,8 @@ static int rvin_format_align(struct rvin_dev *vin,
> struct v4l2_pix_format *pix) v4l_bound_align_image(&pix->width, 2,
> vin->info->max_width, walign, &pix->height, 4, vin->info->max_height, 2,
> 0);
> 
> -	pix->bytesperline = max_t(u32, pix->bytesperline,
> -				  rvin_format_bytesperline(pix));
> -	pix->sizeimage = max_t(u32, pix->sizeimage,
> -			       rvin_format_sizeimage(pix));
> +	pix->bytesperline = rvin_format_bytesperline(pix);
> +	pix->sizeimage = rvin_format_sizeimage(pix);

Thus this mean that the driver will stop supporting configurable strides ? 
Isn't that a regression ?

>  	if (vin->info->model == RCAR_M1 &&
>  	    pix->pixelformat == V4L2_PIX_FMT_XBGR32) {
> @@ -270,11 +268,6 @@ static int __rvin_try_format(struct rvin_dev *vin,
>  	if (pix->field == V4L2_FIELD_ANY)
>  		pix->field = vin->format.field;
> 
> -
> -	/* Always recalculate */
> -	pix->bytesperline = 0;
> -	pix->sizeimage = 0;
> -
>  	/* Limit to source capabilities */
>  	ret = __rvin_try_format_source(vin, which, pix);
>  	if (ret)


-- 
Regards,

Laurent Pinchart