From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Subject: Re: [PATCH 1/6] ASoC: OMAP mcbsp: Add DSP_A support
Date: Mon, 6 Apr 2009 15:37:58 +0300
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To: ext Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: "sakoman@gmail.com" <sakoman@gmail.com>, "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>, "Nikula Jarkko (Nokia-D/Helsinki)" <jarkko.nikula@nokia.com>
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On Monday 06 April 2009 15:22:33 ext Mark Brown wrote:
> On Mon, Apr 06, 2009 at 03:19:27PM +0300, Peter Ujfalusi wrote:
> > Add SND_SOC_DAIFMT_DSP_A support for omap-mcbsp.
> > The configuration for DSP_A and DSP_B is the same.
>
> That doesn't sound right - the two formats do differ on the wire.  In
> mode B the MSB of data is transmitted along with the LRC pulse while in
> mode A it is transmitted after the trailing edge of the LRC pulse.

That is why I have asked previously about these... I'm still a bit confused=
, =

but at the end (I think) the configuration in omap-mcbsp is right for the =

twl4030:
regs->srgr2	|=3D FPER(wlen * channels - 1);
regs->srgr1	|=3D FWID(wlen * channels - 2);
and
/* 0-bit data delay */
regs->rcr2      |=3D RDATDLY(0);
regs->xcr2      |=3D XDATDLY(0);

I'll revisit this.

Thanks,
P=E9ter