Re: DaVinci ASoC DMA stalls

[Caglar Akyuz <caglarakyuz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Mark Lokowich wrote:

> I've been using the DaVinci ASoC for a few months and have recently
> upgraded to the 2.6.26 based DaVinci git kernel.  Now my audio DMA
> stalls more readily after stopping an active stream.  I can manually
> trigger the event by poking the ESR to reactivate the stalled stream,
> suggesting the problem is in the ASP-to-DMA XEVT interface.  This
> problem is less prevalent in the 2.6.25 based kernel.  Any help?
> 


I don't know if this helps but, I am using ASoC code on my DaVinci board
with latest git kernel(2.6.27) and I have no visible issues with the ASoC
code. However, there may be some code-coverage issue with my usage so if you
have any test method to verify that I really don't have your problem I'll
be happy to perform some tests.

My real concern is that this code has never been built without any problems here.
First there was a separate asoc branch in davinci tree which failed to built.
I tried with 2.6.25 and there was again build issues. Finally I wasn't able to
build ASoC code with 2.6.27 so I tried to patch it. I think some part of it 
relies on some dma code which is not present in davinci tree.[1] I don't know
if everybody else is patching kernel source to build asoc support, maybe I'm
doing something wrong. I'm not sure, just FYI.

Regards,
Caglar

[1] http://linux.omap.com/pipermail/davinci-linux-open-source/2008-March/005920.html