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From: Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
Subject: Re: Associating devices with multiple parents
Date: Fri, 17 Aug 2012 11:37:22 +0100
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To: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: Stephen Warren <swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>, devicetree-discuss <devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>, Rob Herring <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>, Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
List-Id: devicetree@vger.kernel.org

On Thu, Aug 16, 2012 at 04:20:47PM -0600, Grant Likely wrote:
> On Aug 16, 2012 3:46 PM, "Mitch Bradley" <wmb-D5eQfiDGL7eakBO8gow8eQ@public.gmane.org> wrote:

> > Is there an established Linux convention for expressing that dual-parent
> > relationship for I2C?  The phandle schemes for cross-tree gpio, clk, and
> > interrupt relationships obviously bear some resemblance to the problem,
> > but I haven't seen anything for I2C.

> Yes. Place the codec under the i2c controller and use a tope level audio
> complex node with phandles to both the codec and i2s nodes.

The nVidia bindings are probably the best ones to look at as an example
here.