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From: Arnd Bergmann <arnd@arndb.de>
To: Stephen Warren <swarren@nvidia.com>
Subject: Re: [RFC PATCH v2 00/13] arm/tegra: Initialize GPIO & pinmux from DT
Date: Thu, 18 Aug 2011 11:15:52 +0200
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On Thursday 18 August 2011, Stephen Warren wrote:
> It looks like DT already supports the generic case for GPIO; each GPIO
> reference is of the form:
> 
> <&gpio 69 0>
> 
> and so each GPIO has a "parent" specified, and hence can come from a
> different controller.
> 
> For drivers, this is all completely hidden by of_get_gpio().
> 
> I imagine we'd just use the same pattern for pinmux. This would both
> support the general case, and end up being consistent with how GPIOs
> already work, so this seems like a win both ways.
> 

Ah right. I had not seen the gpio binding yet, so that definitely works.

	Arnd