[alsa-devel] [PATCH 1/6] ASoC: OMAP mcbsp: Add DSP_A support

Mark Brown broonie at sirena.org.uk
Wed Apr 8 11:28:12 CEST 2009

On Wed, Apr 08, 2009 at 09:08:16AM +0300, Jarkko Nikula wrote:

> What I've seen few codec specs there is no uniform way for different
> DSP formats between their specifications except Wolfson codecs. So I
> use to keep those as a reference and match codec accordingly. Like in
> AIC3x where bit-clock polarity is fixed.

Well, often there's not much polarity but generally the device will
offer something that can be expressed as a combination of mode A or B
and BCLK inversion.  The Wolfson devices are the way they are mostly to
give them the flexibility to interoperate with whatever the other device
is able to do - there's no reason to select any particular clocking mode
other than for interoperability.

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