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Date:	Fri, 21 Mar 2014 15:10:09 +0100
From:	Sylwester Nawrocki <>
To:	Tomi Valkeinen <>
Cc:	Laurent Pinchart <>,
	Grant Likely <>,
	Philipp Zabel <>,
	Russell King - ARM Linux <>,
	Mauro Carvalho Chehab <>,
	Rob Herring <>,
	Kyungmin Park <>,,,,
	Guennadi Liakhovetski <>,
	Philipp Zabel <>
Subject: Re: [PATCH v4 1/3] [media] of: move graph helpers from
 drivers/media/v4l2-core to drivers/of

On 21/03/14 14:37, Tomi Valkeinen wrote:
> On 21/03/14 00:32, Laurent Pinchart wrote:
>> > The OF graph bindings documentation could just specify the ports node as 
>> > optional and mandate individual device bindings to specify it as mandatory or 
>> > forbidden (possibly with a default behaviour to avoid making all device 
>> > bindings too verbose).
> Isn't it so that if the device has one port, it can always do without
> 'ports', but if it has multiple ports, it always has to use 'ports' so
> that #address-cells and #size-cells can be defined?
> If so, there's nothing left for the individual device bindings to decide.

Wouldn't it make the bindings even more verbose ? Letting the individual
device bindings to decide sounds more sensible to me.

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