Associating devices with multiple parents

[Mark Brown]

On Thu, Aug 16, 2012 at 04:20:47PM -0600, Grant Likely wrote:
> On Aug 16, 2012 3:46 PM, "Mitch Bradley" <wmb at firmworks.com> 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.