soc multi chip support

soc multi chip support

[Attila RS]

Hi,

I have 2 of the same audio codecs connected to an omap (each codec has it's
own i2c address and each has its own mcbsp channel). I can configure and use
each one individually, but have not found a way to configure both at the
same time so that each codec shows up as an alsa device. I did some
searching and found that this may not be supported yet. Is that the case or
has anyone done this yet or is working on it?

Attila

Re: soc multi chip support

[Liam Girdwood]

On Fri, 2010-05-14 at 10:30 -0700, Attila RS wrote:
> Hi,
> 
> I have 2 of the same audio codecs connected to an omap (each codec has it's
> own i2c address and each has its own mcbsp channel). I can configure and use
> each one individually, but have not found a way to configure both at the
> same time so that each codec shows up as an alsa device. I did some
> searching and found that this may not be supported yet. Is that the case or
> has anyone done this yet or is working on it?

ASoC multi-component support is working well, although not yet merged
upstream yet.

Please pull the multi-component branch here for support :-

git://git.kernel.org/pub/scm/linux/kernel/git/lrg/asoc-2.6.git

Liam
-- 
Freelance Developer, SlimLogic Ltd
ASoC and Voltage Regulator Maintainer.
http://www.slimlogic.co.uk

Re: soc multi chip support

[Attila RS]

Thanks. I pulled down the multi-component branch and am looking through it.
I started with TI's latest PSP, which is based on 2.6.32, but as expected
there are numerous changes between it and the the multi-component branch.

Are there any devices in the multi-component branch that are using multiple
audio codecs? Just looking for a good example.

Attila

On Fri, May 14, 2010 at 12:45 PM, Liam Girdwood <lrg@slimlogic.co.uk> wrote:

> On Fri, 2010-05-14 at 10:30 -0700, Attila RS wrote:
> > Hi,
> >
> > I have 2 of the same audio codecs connected to an omap (each codec has
> it's
> > own i2c address and each has its own mcbsp channel). I can configure and
> use
> > each one individually, but have not found a way to configure both at the
> > same time so that each codec shows up as an alsa device. I did some
> > searching and found that this may not be supported yet. Is that the case
> or
> > has anyone done this yet or is working on it?
>
> ASoC multi-component support is working well, although not yet merged
> upstream yet.
>
> Please pull the multi-component branch here for support :-
>
> git://git.kernel.org/pub/scm/linux/kernel/git/lrg/asoc-2.6.git
>
> Liam
> --
> Freelance Developer, SlimLogic Ltd
> ASoC and Voltage Regulator Maintainer.
> http://www.slimlogic.co.uk
>
>

Re: soc multi chip support

[Liam Girdwood]

On Mon, 2010-05-17 at 10:29 -0700, Attila RS wrote:
> Thanks. I pulled down the multi-component branch and am looking
> through it. I started with TI's latest PSP, which is based on 2.6.32,
> but as expected there are numerous changes between it and the the
> multi-component branch.
> 
> 
> Are there any devices in the multi-component branch that are using
> multiple audio codecs? Just looking for a good example.
> 

None public atm, just create your machine driver with 2 DAI links and
set the individual DAI link codec driver entries to different codecs. 

Liam

-- 
Freelance Developer, SlimLogic Ltd
ASoC and Voltage Regulator Maintainer.
http://www.slimlogic.co.uk