linux-kernel - Re: [PATCH v4 3/3] Documentation: of: Document graph bindings

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Message-Id: <20140307172057.34F02C40A64@trevor.secretlab.ca>
Date:	Sat, 08 Mar 2014 01:20:57 +0800
From:	Grant Likely <grant.likely@...aro.org>
To:	Tomi Valkeinen <tomi.valkeinen@...com>,
	Philipp Zabel <p.zabel@...gutronix.de>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	Rob Herring <robh+dt@...nel.org>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
	devicetree@...r.kernel.org,
	Guennadi Liakhovetski <g.liakhovetski@....de>
Subject: Re: [PATCH v4 3/3] Documentation: of: Document graph bindings

On Wed, 26 Feb 2014 15:14:17 +0200, Tomi Valkeinen <tomi.valkeinen@...com> wrote:
> On 25/02/14 16:58, Philipp Zabel wrote:
> 
> > +Optional endpoint properties
> > +----------------------------
> > +
> > +- remote-endpoint: phandle to an 'endpoint' subnode of a remote device node.
> 
> Why is that optional? What use is an endpoint, if it's not connected to
> something?
> 
> Also, if this is being worked on, I'd like to propose the addition of
> simpler single-endpoint cases which I've been using with OMAP DSS. So if
> there's just a single endpoint for the device, which is very common, you
> can have just:
> 
> device {
> 	...
> 	endpoint { ... };
> };
> 
> However, I guess that the patch just keeps growing and growing, so maybe
> it's better to add such things later =).

It's good to talk about it now while boiling down the core behaviour
into a useful pattern. That said, I think if the stuff I've commented on
already is addressed then it will probably be sufficient for me to ack
or merge the change.

g.
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