[alsa-devel] [PATCH 0/5] Add Voice Codec support for DaVinci platforms

[Mark Brown]

On 21 Jan 2010, at 18:52, Steve Chen <schen at mvista.com> wrote:

> On Thu, 2010-01-21 at 11:35 -0600, Miguel Aguilar wrote:
>> Hi,
>>
>> The following patch series adds support for the Voice Codec in the  
>> Davinci
>> platform and in this particular case for the DM365 EVM.
>>
>> The DM365 EVM has two codecs the AIC3x and the Voice Codec, however  
>> at this
>> point is not possible to have both enabled simultaneously since the  
>> soc-core
>> doesn't support that, so a patch for enable both simultaneously  
>> will be sent
>> when this support is available in the soc-core.
>
> I thought, perhaps incorrectly, that soc-core already has the  
> ability to
> support multiple codecs.  When I worked on ALSA soc support for  
> DM6467,
> one of the McASP was connected to AIC3x and the other is SPDIF output.
> Both interface can work at the same time.  I just assumed that if we
> have two  McASP (or other audio controllers) connected to two codecs.
> They would both just work under ALSA soc.  Please let me know if I'm
> mistaken.

It can only cope with one CODEC with registers. That S/PDIF interface  
has no registers so could be made to work.