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From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
Cc: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH v3 4/4] rcar-vin: Always setup controls when opening video device
Date: Thu, 4 Jul 2019 15:16:52 +0300	[thread overview]
Message-ID: <20190704121652.GD6569@pendragon.ideasonboard.com> (raw)
In-Reply-To: <20190704015817.17083-5-niklas.soderlund+renesas@ragnatech.se>

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.pinchart@ideasonboard.com>

> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@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

  reply	other threads:[~2019-07-04 12:17 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-04  1:58 [PATCH v3 0/4] rcar-vin: Add support for RGB formats with alpha Niklas Söderlund
2019-07-04  1:58 ` [PATCH v3 1/4] rcar-vin: Rename VNDMR_DTMD_ARGB1555 to VNDMR_DTMD_ARGB Niklas Söderlund
2019-07-04 14:13   ` Kieran Bingham
2019-07-04  1:58 ` [PATCH v3 2/4] rcar-vin: Add control for alpha component Niklas Söderlund
2019-07-04 15:15   ` Kieran Bingham
2019-07-04 15:35     ` Niklas Söderlund
2019-07-04  1:58 ` [PATCH v3 3/4] rcar-vin: Add support for RGB formats with " Niklas Söderlund
2019-07-04 12:14   ` Laurent Pinchart
2019-07-04 15:50   ` Kieran Bingham
2019-07-04  1:58 ` [PATCH v3 4/4] rcar-vin: Always setup controls when opening video device Niklas Söderlund
2019-07-04 12:16   ` Laurent Pinchart [this message]
2019-07-04 15:55   ` Kieran Bingham

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