Hi Niklas,

Thank you for the patch.

On Thu, Jul 04, 2019 at 03:58:17AM +0200, Niklas Söderlund wrote:
> Now that both Gen2 (device centric) and Gen3 (media device centric)
> modes of this driver have controls it make sens to call

s/sens/sense/

> v4l2_ctrl_handler_setup() unconditionally when opening the video device.

Not only does it make sense, but it's required by 3/4. I think you
should explain why in the commit message. Apart from that,

Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>

> Signed-off-by: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>
> ---
>  drivers/media/platform/rcar-vin/rcar-v4l2.c | 30 ++++++++++-----------
>  1 file changed, 15 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c 
> b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> index f8b6ec4408b2f5fa..cbf5d8cd6db32d77 100644
> --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
> +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> @@ -789,26 +789,26 @@ static int rvin_open(struct file *file)
>       if (ret)
>               goto err_unlock;
>  
> -     if (vin->info->use_mc) {
> +     if (vin->info->use_mc)
>               ret = v4l2_pipeline_pm_use(&vin->vdev.entity, 1);
> -             if (ret < 0)
> -                     goto err_open;
> -     } else {
> -             if (v4l2_fh_is_singular_file(file)) {
> -                     ret = rvin_power_parallel(vin, true);
> -                     if (ret < 0)
> -                             goto err_open;
> +     else if (v4l2_fh_is_singular_file(file))
> +             ret = rvin_power_parallel(vin, true);
> +
> +     if (ret < 0)
> +             goto err_open;
> +
> +     ret = v4l2_ctrl_handler_setup(&vin->ctrl_handler);
> +     if (ret)
> +             goto err_power;
>  
> -                     ret = v4l2_ctrl_handler_setup(&vin->ctrl_handler);
> -                     if (ret)
> -                             goto err_parallel;
> -             }
> -     }
>       mutex_unlock(&vin->lock);
>  
>       return 0;
> -err_parallel:
> -     rvin_power_parallel(vin, false);
> +err_power:
> +     if (vin->info->use_mc)
> +             v4l2_pipeline_pm_use(&vin->vdev.entity, 0);
> +     else if (v4l2_fh_is_singular_file(file))
> +             rvin_power_parallel(vin, false);
>  err_open:
>       v4l2_fh_release(file);
>  err_unlock:

-- 
Regards,

Laurent Pinchart

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