[alsa-devel] [RFC] I2S and LEFT_J (was: ASoC: pxa-ssp: enhance I2S and add Left_J support)

Mark Brown broonie at opensource.wolfsonmicro.com
Mon Jun 15 17:04:33 CEST 2009

On Mon, Jun 15, 2009 at 11:57:04AM -0300, Daniel Ribeiro wrote:

> For what it matters, the only difference on I2S/LEFT_J vs DSP_A/DSP_B
> should be the SSPSFRM duration as it is needed to emulate the LRCLK.

Assuming no extra bit clocks.  Extra bit clocks do something different
in I2S due to the fact that LRCLK falling edge is signifigcant.

> (and of course, the fact that I2S/LEFT_J are stereo only and that
> network mode can't be supported)

You should be able to support at least modes using the first TDM
timeslot I'd have thought.

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