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SubjectRe: [PATCH 2/5] mfd: arizona: Add device tree binding for max_channels_clocked
On Mon, Sep 23, 2013 at 03:38:10PM -0600, Stephen Warren wrote:
> On 09/23/2013 12:30 PM, Charles Keepax wrote:

> > + - wlf,max-channels-clocked : The maximum number of channels to be clocked on
> > + each AIF, useful for I2S systems with multiple data lines being mastered.
> > + If specified three cells must supplied one for each AIF, specify zero for
> > + AIFs that should be handled normally.

> What determines the value of this property? Is it really a definition of
> HW, or some kind of run-time configuration/limit? What goes into each of
> the 3 cells?

It's hardware, it's other devices wired in parallel on the bus that use
the CODEC as a clock master. Personally I'd have this be set by the
ASoC machine driver so it's invisible from a DT point of view, that's
what it's really a property of.
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