linux-kernel - Re: [PATCH v8 03/13] [media] omap3isp: group device capabilities

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Date:   Tue, 13 Mar 2018 19:34:52 -0700
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Gustavo Padovan <gustavo@...ovan.org>, linux-media@...r.kernel.org
Cc:     kernel@...labora.com,
        Mauro Carvalho Chehab <mchehab@....samsung.com>,
        Shuah Khan <shuahkh@....samsung.com>,
        Pawel Osciak <pawel@...iak.com>,
        Alexandre Courbot <acourbot@...omium.org>,
        Sakari Ailus <sakari.ailus@....fi>,
        Brian Starkey <brian.starkey@....com>,
        linux-kernel@...r.kernel.org,
        Gustavo Padovan <gustavo.padovan@...labora.com>
Subject: Re: [PATCH v8 03/13] [media] omap3isp: group device capabilities

On 03/09/2018 09:49 AM, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@...labora.com>
> 
> Instead of putting V4L2_CAP_STREAMING everywhere, set device_caps
> earlier with this value.
> 
> Signed-off-by: Gustavo Padovan <gustavo.padovan@...labora.com>
> ---
>  drivers/media/platform/omap3isp/ispvideo.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c
> index a751c89a3ea8..b4d4ef926749 100644
> --- a/drivers/media/platform/omap3isp/ispvideo.c
> +++ b/drivers/media/platform/omap3isp/ispvideo.c
> @@ -658,13 +658,14 @@ isp_video_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
>  	strlcpy(cap->card, video->video.name, sizeof(cap->card));
>  	strlcpy(cap->bus_info, "media", sizeof(cap->bus_info));
>  
> -	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT
> -		| V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS;
> +	cap->device_caps = V4L2_CAP_STREAMING;
> +	cap->capabilities = cap->device_caps | V4L2_CAP_VIDEO_CAPTURE |
> +		V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_DEVICE_CAPS;

Same as in patch 1: I'd move this down to after the if-else. It makes more
sense that way.

>  
>  	if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
> -		cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
> +		cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
>  	else
> -		cap->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
> +		cap->device_caps |= V4L2_CAP_VIDEO_OUTPUT;
>  
>  	return 0;
>  }
> 

Regards,

	Hans