Re: [PATCH 1/2] powerpc: add platform registration for ALSA SoC drivers

[Timur Tabi <timur.tabi@gmail.com>]

On Tue, Apr 27, 2010 at 5:09 AM, Benjamin Herrenschmidt
<benh@kernel.crashing.org> wrote:

> Keep in mind that it's perfectly kosher to create nodes for "virtual"
> devices. IE. We could imagine a node for the "sound subsystem" that
> doesn't actually correspond to any physical device but contain the
> necessary properties that binds everything together. You could even have
> multiple of these if you have separate set of sound HW that aren't
> directly dependant.

First, I want to officially retract this patch.  I've talked with
Grant, and we've come up with a different approach to this problem.

Second, how about this binding for the virtual sound node?  It would
be a root-level node.

	sound-devices {
		sound0 {
			ssi = &ssi0;
			playback-dma = &dma00;
			capture-dma = &dma01;
			codec = &cs4270;
		}
	};

-- 
Timur Tabi
Linux kernel developer at Freescale