[alsa-devel] [PATCH v2] davinci-mcasp: Add support for multichannel playback

[Bedia, Vaibhav]

On Wed, Mar 06, 2013 at 16:30:48, Daniel Mack wrote:
> On 06.03.2013 11:54, Bedia, Vaibhav wrote:
> > Hi Daniel,
> > 
> > On Tue, Mar 05, 2013 at 21:31:59, Daniel Mack wrote:
> > [...]
> >>
> >> As Michal described, we used a board with a multichannel Codec on it,
> >> which connects 3 of its I2S inputs to the AM33xx's AXR data lines.
> >>
> >> Software wise, we tested with 'aplay -cX', and that seems to work just fine.
> >>
> > 
> > Since you are using a multichannel codec things are a lot simplified for you :)
> > Someone might want to hook up multiple codecs to get multi-channel behavior.
> > There will be only 1 CPU DAI but there can be upto 16 CODEC DAIs operating in
> > sync. I haven't really followed the recent ASoC changes so I don't know whether
> > something like this can be handled right now.
> 
> I would rather instanciate multiple McASP cores for such setups, so you
> can (in theory) also make them operate on different bit depths and clock
> dividers. You think that's possible as well?
> 

Yeah. Using multiple McASPs would be much simpler to handle both in s/w and h/w.

Regards,
Vaibhav