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

Jarkko Nikula jarkko.nikula at nokia.com
Wed Apr 8 08:08:16 CEST 2009

On Wed, 8 Apr 2009 00:14:05 +0200
ext Mark Brown <broonie at sirena.org.uk> wrote:

> The TWL4030 datasheet does not appear to be a model of clarity in this
> area but it looks awfully like mode A with an inverted bit clock (the
> data appears to be being driven rather than sampled on the rising edge
> but the first bit does start on the falling edge of the frame clock).
> This means the Beagle code looks about right unless I'm misreading
> something.

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.


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