linux-kernel - Re: [PATCH v2] media: rcar-vin: add G/S

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Date:   Tue, 28 Sep 2021 02:03:56 +0200
From:   Niklas Söderlund 
        <niklas.soderlund@...natech.se>
To:     Nikita Yushchenko <nikita.yoush@...entembedded.com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Vladimir Barinov <vladimir.barinov@...entembedded.com>
Subject: Re: [PATCH v2] media: rcar-vin: add G/S_PARM ioctls

Hello Nikita and Vladimir,

Thanks for your work.

On 2021-09-24 16:51:38 +0300, Nikita Yushchenko wrote:
> From: Vladimir Barinov <vladimir.barinov@...entembedded.com>
> 
> This adds g/s_parm ioctls for parallel interface.
> 
> Signed-off-by: Vladimir Barinov <vladimir.barinov@...entembedded.com>
> Signed-off-by: Nikita Yushchenko <nikita.yoush@...entembedded.com>

Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>

> ---
> Changes from v1:
> - use &vin->vdev to access vin's struct video_device
> 
>  drivers/media/platform/rcar-vin/rcar-v4l2.c | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> index bdeff51bf768..a5bfa76fdac6 100644
> --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
> +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> @@ -527,6 +527,24 @@ static int rvin_s_selection(struct file *file, void *fh,
>  	return 0;
>  }
>  
> +static int rvin_g_parm(struct file *file, void *priv,
> +		       struct v4l2_streamparm *parm)
> +{
> +	struct rvin_dev *vin = video_drvdata(file);
> +	struct v4l2_subdev *sd = vin_to_source(vin);
> +
> +	return v4l2_g_parm_cap(&vin->vdev, sd, parm);
> +}
> +
> +static int rvin_s_parm(struct file *file, void *priv,
> +		       struct v4l2_streamparm *parm)
> +{
> +	struct rvin_dev *vin = video_drvdata(file);
> +	struct v4l2_subdev *sd = vin_to_source(vin);
> +
> +	return v4l2_s_parm_cap(&vin->vdev, sd, parm);
> +}
> +
>  static int rvin_g_pixelaspect(struct file *file, void *priv,
>  			      int type, struct v4l2_fract *f)
>  {
> @@ -743,6 +761,9 @@ static const struct v4l2_ioctl_ops rvin_ioctl_ops = {
>  	.vidioc_g_selection		= rvin_g_selection,
>  	.vidioc_s_selection		= rvin_s_selection,
>  
> +	.vidioc_g_parm			= rvin_g_parm,
> +	.vidioc_s_parm			= rvin_s_parm,
> +
>  	.vidioc_g_pixelaspect		= rvin_g_pixelaspect,
>  
>  	.vidioc_enum_input		= rvin_enum_input,
> -- 
> 2.30.2
> 

-- 
Regards,
Niklas Söderlund