Il giorno giovedì 14 gennaio 2016 14:25:34 UTC+1, mar...@r2r.nl ha scritto:
>
> On Wednesday, January 13, 2016 at 6:49:03 AM UTC+1, Andrea Venturi wrote: 
> > hello, 
> > 
> > 
> > i've tested the experimental github branch for I2S DAI mainline linux 
> driver on: 
> >  https://github.com/mripard/linux/tree/sunxi/wip/a20-i2s 
> > 
> > 
> > 
> > my HW setup actually is: 
> > an Olimex A20-SOM with EValuation Board: 
> https://www.olimex.com/Products/SOM/A20/A20-SOM-EVB/the Audio DAC is a 
> PCM5102x based low cost device: 
> http://www.aliexpress.com/item/PCM5102-DAC-Decoder-I2S-Player-Assembled-Board-32Bit-384K-Beyond-ES9023-PCM1794/32579339671.html
>  
>
 

> ...
>
> What would be the best way tot test this for me ?



this is a pretty wide question, if you do not elaborate a bit about your 
starting point! :-)

you mean software or hardware wise? 

here the easiest way, AFAIK

* hardware: you need an A20 based SBC with I2S0 pins exposed (BCLK LRCLK 
SDO0) and a "dumb" codec (i.e. one that "sync" at any reasonable sample 
rate in the incoming rate

* sw wise: mripard's wip/a20-i2s and patches i attached. 
https://github.com/mripard/linux/tree/sunxi/wip/a20-i2s   

then put in place a rootfs with some kind of media player like aplay, then 
boot the new kernel with properly configured audio modules (mainly A20 I2S 
DAI) . BTW i've not tested the driver hardcoded inside kernel.

of course you need to take care of any difference on your setup, for 
example enable the devices in your own DTS/DTB and so on..

bye

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