From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Subject: Re: [PATCH 6/6] ASoC: Beagle: Add support for 4
	channel mode
Date: Tue, 7 Apr 2009 07:45:31 +0300
Message-ID: <200904070745.31538.peter.ujfalusi@nokia.com>
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To: ext Mark Brown <broonie@sirena.org.uk>
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 15:50:29 ext Mark Brown wrote:
> On Mon, Apr 06, 2009 at 03:19:32PM +0300, Peter Ujfalusi wrote:
> > +	switch (params_channels(params)) {
> > +	case 2: /* Stereo I2S mode */
> > +		fmt =3D	SND_SOC_DAIFMT_I2S |
> > +			SND_SOC_DAIFMT_NB_NF |
> > +			SND_SOC_DAIFMT_CBM_CFM;
> > +		break;
> > +	case 4: /* Four channel TDM mode */
> > +		fmt =3D	SND_SOC_DAIFMT_DSP_A |
>
> Might it not be easier to just run in DSP mode all the time?

The reason for this is the fact that twl4030 in TDM mode only supports 4. =

channel.

The Audio interface has three modes:
codec mode (i2s) - Stereo
Left-justified   - Stereo
Right-justified  - Stereo
TDM              - 4 channels

-- =

P=E9ter