[alsa-devel] CS4270 supported?

Liam Girdwood lg at opensource.wolfsonmicro.com
Wed Apr 18 18:04:57 CEST 2007

On Wed, 2007-04-18 at 10:46 -0500, Timur Tabi wrote:
> Liam Girdwood wrote:
> > You will need to write a codec driver for the CS4270 and a small machine
> > driver for your board (there are lots of examples in my git tree). The
> > codec driver will export mixers, configure the digital audio interface,
> > setup any codec PLL's etc. The machine driver glues the codec to your
> > platform and does any machine specific configuration e.g. gpio, clocks,
> > audio mux (on i.MXxx)  
> Thanks, that's very helpful.  I assume the codec driver will be like all the others in the 
> sound/soc/codecs/ directory, and that my codec driver will also go there?


> > I assume your either targeting the i.MX21/27 or i.MX31 ?
> Actually, I'm not allowed to say.  :-)
> > Fwiw, I've made a start to i.MX31 ASoC DMA (based on the Freescale BSP)
> > and I'm actively working on this atm. dev branch is here :-
> > 
> > http://opensource.wolfsonmicro.com/cgi-bin/gitweb/gitweb.cgi?p=linux-2.6-asoc;a=shortlog;h=dev
> > 
> > However, I don't have any bandwidth atm to work on i.MX21. 
> I may be able to help you with this after I'm done with my current project.  By then, I 
> should know enough about ALSA.

Cool. :)


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