linux-kernel - Re: [PATCH] media: imx: set a media_device bus

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Message-ID: <YTk7F+UTZmpeXzHj@pendragon.ideasonboard.com>
Date:   Thu, 9 Sep 2021 01:37:11 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Martin Kepplinger <martin.kepplinger@...i.sm>
Cc:     slongerbeam@...il.com, p.zabel@...gutronix.de, mchehab@...nel.org,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: imx: set a media_device bus_info string

Hi Martin,

Thank you for the patch.

On Wed, Sep 08, 2021 at 10:47:46AM +0200, Martin Kepplinger wrote:
> some tools like v4l2-compliance let users select a media device based

s/some/Some/

I'll fix then when applying the patch to my tree.

> on the bus_info string which can be quite convenient. Use a unique
> string for that.
> 
> This also fixes the following v4l2-compliance warning:
> warn: v4l2-test-media.cpp(52): empty bus_info
> 
> Signed-off-by: Martin Kepplinger <martin.kepplinger@...i.sm>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
>  drivers/staging/media/imx/imx-media-dev-common.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/staging/media/imx/imx-media-dev-common.c b/drivers/staging/media/imx/imx-media-dev-common.c
> index d006e961d8f4..80b69a9a752c 100644
> --- a/drivers/staging/media/imx/imx-media-dev-common.c
> +++ b/drivers/staging/media/imx/imx-media-dev-common.c
> @@ -367,6 +367,8 @@ struct imx_media_dev *imx_media_dev_init(struct device *dev,
>  	imxmd->v4l2_dev.notify = imx_media_notify;
>  	strscpy(imxmd->v4l2_dev.name, "imx-media",
>  		sizeof(imxmd->v4l2_dev.name));
> +	snprintf(imxmd->md.bus_info, sizeof(imxmd->md.bus_info),
> +		 "platform:%s", dev_name(imxmd->md.dev));
>  
>  	media_device_init(&imxmd->md);
>  

-- 
Regards,

Laurent Pinchart