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From: Lee Jones <lee.jones@linaro.org>
To: Fabio Estevam <festevam@gmail.com>
Cc: "Philippe Rétornaz" <philippe.retornaz@epfl.ch>,
	alsa-devel@alsa-project.org,
	"Mark Brown" <broonie@opensource.wolfsonmicro.com>,
	"Sascha Hauer" <kernel@pengutronix.de>
Subject: Re: Crash when probing imx_mc13783
Date: Thu, 26 Jul 2012 17:15:52 +0100	[thread overview]
Message-ID: <50116D38.6050001@linaro.org> (raw)
In-Reply-To: <CAOMZO5BsOV3X09DKc-uexe9mqhYhkbmKZg2vh_h2-hBB=X1A7Q@mail.gmail.com>

On 26/07/12 16:40, Fabio Estevam wrote:
> Philippe,
>
> On Thu, Jul 26, 2012 at 4:29 AM, Philippe Rétornaz
> <philippe.retornaz@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

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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  reply	other threads:[~2012-07-26 16:15 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-25 19:56 Crash when probing imx_mc13783 Fabio Estevam
2012-07-26  7:29 ` Philippe Rétornaz
2012-07-26 15:40   ` Fabio Estevam
2012-07-26 16:15     ` Lee Jones [this message]
2012-07-26 17:16       ` Fabio Estevam
2012-07-26 20:20         ` Mark Brown
2012-07-26 20:19       ` Mark Brown

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