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From: "Niklas Söderlund" <niklas.soderlund@ragnatech.se>
To: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	Sakari Ailus <sakari.ailus@iki.fi>,
	Jacopo Mondi <jacopo+renesas@jmondi.org>,
	Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
	Lad Prabhakar <prabhakar.csengg@gmail.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>
Subject: Re: [PATCH v4 1/4] device property: Add a function to test is a fwnode is a graph endpoint
Date: Wed, 1 Jul 2020 19:06:42 +0200
Message-ID: <20200701170642.GA2703142@oden.dyn.berto.se> (raw)
In-Reply-To: <20200701062140.12953-2-laurent.pinchart+renesas@ideasonboard.com>

Hi Laurent,

Thanks for your work.

On 2020-07-01 09:21:37 +0300, Laurent Pinchart wrote:
> Drivers may need to test if a fwnode is a graph endpoint. To avoid
> hand-written solutions that wouldn't work for all fwnode types, add a
> new fwnode_graph_is_endpoint() function for this purpose. We don't need
> to wire it up to different backends for OF and ACPI for now, as the
> implementation can simply be based on checkout the presence of a
> remote-endpoint property.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

> ---
>  include/linux/property.h | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/include/linux/property.h b/include/linux/property.h
> index 10d03572f52e..9f805c442819 100644
> --- a/include/linux/property.h
> +++ b/include/linux/property.h
> @@ -389,6 +389,11 @@ struct fwnode_handle *
>  fwnode_graph_get_remote_node(const struct fwnode_handle *fwnode, u32 port,
>  			     u32 endpoint);
>  
> +static inline bool fwnode_graph_is_endpoint(struct fwnode_handle *fwnode)
> +{
> +	return fwnode_property_present(fwnode, "remote-endpoint");
> +}
> +
>  /*
>   * Fwnode lookup flags
>   *
> -- 
> Regards,
> 
> Laurent Pinchart
> 

-- 
Regards,
Niklas Söderlund

  parent reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-01  6:21 [PATCH v4 0/4] media: v4l2-async: Accept endpoints and devices for fwnode matching Laurent Pinchart
2020-07-01  6:21 ` [PATCH v4 1/4] device property: Add a function to test is a fwnode is a graph endpoint Laurent Pinchart
2020-07-01  7:34   ` Sakari Ailus
2020-07-01 12:19     ` Rafael J. Wysocki
2020-07-15 20:57       ` Sakari Ailus
2020-07-17  2:19         ` Laurent Pinchart
2020-07-17  7:56           ` Sakari Ailus
2020-07-01 17:06   ` Niklas Söderlund [this message]
2020-07-01 18:46   ` Lad, Prabhakar
2020-07-01 21:03   ` Kieran Bingham
2020-07-01  6:21 ` [PATCH v4 2/4] media: v4l2-async: Accept endpoints and devices for fwnode matching Laurent Pinchart
2020-07-01  6:21 ` [PATCH v4 3/4] media: v4l2-async: Pass notifier pointer to match functions Laurent Pinchart
2020-07-01  6:21 ` [PATCH v4 4/4] media: v4l2-async: Log message in case of heterogeneous fwnode match Laurent Pinchart

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