[alsa-devel] [PATCH 5/5] ASoC: simple-card: add Device Tree support

Mark Brown broonie at opensource.wolfsonmicro.com
Fri Jan 4 20:37:13 CET 2013

On Fri, Jan 04, 2013 at 10:49:12AM -0700, Stephen Warren wrote:
> On 12/25/2012 11:53 PM, Kuninori Morimoto wrote:

> > +- simple,asoc,cpu		: phandle for platform

> "cpu" isn't a very good name; it couuld mean anything. "platform" is an
> ASoC-specific term. I think this would be better written as:

> simple-audio,cpu-audio-controller : phandle of the CPU's audio controller

> or perhaps:

> simple-audio,cpu-port : phandle of the CPU's audio port

> or since I assume this binding assumes I2S rather than say AC'97 or
> SlimBus, perhaps:

> simple-audio,i2c-controller : phandle of the CPU's I2S controller

The binding is pretty agnostic as to the interface given that the
bus-specifics are in optional properties.

> > +- simple,asoc,sysclk			: system clock rate

> "clock-frequency" rather than "sysclk" would be more consistent with
> other bindings.

I think specifying the particular clock being referenced is useful here
- we may also end up wanting to specify the BCLK or sample rate due to
some hardware limitation on some system both of which are clocks too.
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