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Date:   Mon, 30 Nov 2020 18:27:35 +0200
From:   Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To:     Daniel Scally <djrscally@gmail.com>
Cc:     linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
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Subject: Re: [PATCH 11/18] media: v4l2-core: v4l2-async: Check possible match
 in match_fwnode based on sd->fwnode->secondary
Message-ID: <20201130162735.GM14465@pendragon.ideasonboard.com>
References: <20201130133129.1024662-1-djrscally@gmail.com>
 <20201130133129.1024662-12-djrscally@gmail.com>
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In-Reply-To: <20201130133129.1024662-12-djrscally@gmail.com>
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Hi Daniel,

Thank you for the patch.

On Mon, Nov 30, 2020 at 01:31:22PM +0000, Daniel Scally wrote:
> Where the fwnode graph is comprised of software_nodes, these will be
> assigned as the secondary to dev->fwnode. Check the v4l2_subdev's fwnode
> for a secondary and attempt to match against it during match_fwnode() to
> accommodate that possibility.
> 
> Signed-off-by: Daniel Scally <djrscally@gmail.com>

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

> ---
> Changes since RFC v3:
> 
> 	- None
> 
>  drivers/media/v4l2-core/v4l2-async.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
> index e3ab003a6c85..6486dbde784f 100644
> --- a/drivers/media/v4l2-core/v4l2-async.c
> +++ b/drivers/media/v4l2-core/v4l2-async.c
> @@ -87,6 +87,14 @@ static bool match_fwnode(struct v4l2_async_notifier *notifier,
>  	if (sd->fwnode == asd->match.fwnode)
>  		return true;
>  
> +	/*
> +	 * Check the same situation for any possible secondary assigned to the
> +	 * subdev's fwnode
> +	 */
> +	if ((!IS_ERR_OR_NULL(sd->fwnode->secondary)) &&
> +	    sd->fwnode->secondary == asd->match.fwnode)
> +		return true;
> +
>  	/*
>  	 * Otherwise, check if the sd fwnode and the asd fwnode refer to an
>  	 * endpoint or a device. If they're of the same type, there's no match.

-- 
Regards,

Laurent Pinchart