[alsa-devel] Please help in adding ams-delta support to ASoC

[Arun K S]

On Thu, Jun 18, 2009 at 4:40 AM, Janusz
Krzysztofik<jkrzyszt at tis.icnet.pl> wrote:
> Jarkko Nikula wrote:
>>
>> Hmm, recall, did you try hacking the ASoC driver at the same commit
>> d8376cc482b241701f7606c81ad578b90853e175 where older driver still
>> exists and works? There has been ASoC OMAP fixes and changes since
>> then but nothing which can explain why it doesn't work now for 1510.
>>
>> There we would know that clock framework, register access etc. works for
>> McBSP on 1510.
>
> Yes, after realizing that possible lack of OMAP1510 McBSP1/3 / DSP support
> in the mainline tree could be the reason of my problem, I got back to omap
> tree. First I retried the new driver on commit
> 90e758af52ba803cba233fabee81176d99589f09 and confirmed the prevoiusly seen
> hangup. I found that it was omap_mcbsp_request() never returning back from.

I faced the same issue while writing ASoC driver for tlv320aic23b codec.

You can have a look at this thread:
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg03852.html

It may help.

>
> Then I retired the same on the commit
> d8376cc482b241701f7606c81ad578b90853e175 and got similiar hangup. Next, I
> moved mcbsp initialization to a boot time hook and finally heard a sound and
> got my first DMA interrupt!
>
> So it seams I have finally managed to take all necessary steps back, and now
> I can go forward, I hope :).
>
> Thanks,
> Janusz
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