[alsa-devel] OMAP4 McBSP AC97 link

Sebastian ehlke at bewatec.de
Thu Sep 27 10:58:09 CEST 2012

Daniel Mack <zonque <at> gmail.com> writes:

> On 27.09.2012 09:44, Sebastian wrote:
> > Hi All,
> > 
> > i have to support a 2nd Audio Codec with AC97 Interface on McBSP Port2.
> > Processor: OMAP4460
> > 
> > If any one have any idea on how to go about this. 
> > Please let me know.
> If you need to support a second codec on a dedicated bus, all you have
> to do is set up a new snd_soc_dai_link. Read the documentation in
> Documentation/sound/alsa/soc/ and see many of the good example in the
> mainline kernel tree.
> If your goal is to support a second codec in parallel to another one,
> dynamix PCM (DPCM) is what you want to have a look at. It's there in the
> kernel since 3.5, but AFAIK there's currently no user of it that can
> serve as an example.
> HTH,
> Daniel

Hi Daniel,

my Board has 1x TWL6040(PDM/I2C) and 1x WM9715(AC97/MCBSP) so to independent
interfaces. I would like to use both Codecs simultaneously. So it might be
sufficient to create a new new snd_soc_dai_link?


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