[alsa-devel] Crash when probing imx_mc13783

Lee Jones lee.jones at linaro.org
Thu Jul 26 18:15:52 CEST 2012

On 26/07/12 16:40, Fabio Estevam wrote:
> Philippe,
> On Thu, Jul 26, 2012 at 4:29 AM, Philippe Rétornaz
> <philippe.retornaz at epfl.ch> wrote:
>> Well, I'm able to boot 3.5 on my board (imx31 based), so it must be a patch
>> between 3.5 and 3.5-next. It should be quite quickly bisectable.
> It turns out I am having the same issue as the one described at:
> https://lkml.org/lkml/2012/7/26/128
> I applied Lee's patch and audio can be probed again. I am not sure how
> would be the right fix in our case though.

The patch is apparently not correct (although, I do see a place for it). 
The problem is that unless your code populates codec->control_data, SoC 
Core will assume you haven't set-up any I/O for yourself, even if you 
have. I'm just chatting with Mark now to try to get to the bottom of 
what I need to put in there for my use-case. I'm assuming yours will be 
different again.

Kind regards,

Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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