Re: [PATCH v2 4/6] media: uvcvideo: Create ancillary link for GPIO subdevice

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Hi Ricardo,

On Fri, Nov 08, 2024 at 08:25:48PM +0000, Ricardo Ribalda wrote:
> Make an ancillary device between the streaming subdevice and the GPIO

s/device/link/

> subdevice.

Either subdev or sub-device. Same above.

> 
> Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
> ---
>  drivers/media/usb/uvc/uvc_entity.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/media/usb/uvc/uvc_entity.c b/drivers/media/usb/uvc/uvc_entity.c
> index c1b69f9eaa56..dad77b96fe16 100644
> --- a/drivers/media/usb/uvc/uvc_entity.c
> +++ b/drivers/media/usb/uvc/uvc_entity.c
> @@ -53,6 +53,16 @@ static int uvc_mc_create_links(struct uvc_video_chain *chain,
>  			return ret;
>  	}
>  
> +	/* Create ancillary link for the GPIO. */
> +	if (chain->dev->gpio_unit && UVC_ENTITY_TYPE(entity) == UVC_ITT_CAMERA) {

This seems to be over 80 for no apparent reason.

> +		struct media_link *link;
> +
> +		link = media_create_ancillary_link(sink,
> +					&chain->dev->gpio_unit->subdev.entity);

And following the alignment rules would push this over 80. I have no
problem with that.

> +		if (IS_ERR(link))
> +			return PTR_ERR(link);
> +	}
> +
>  	return 0;
>  }
>  
> 

-- 
Regards,

Sakari Ailus




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