linux-kernel - Re: mc13xxx-core: kernel hangs after 'regmap

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Message-ID: <2220592.xdm62UZBs9@laptop>
Date:	Tue, 22 May 2012 14:48:28 +0200
From:	Philippe Rétornaz <philippe.retornaz@...l.ch>
To:	Fabio Estevam <festevam@...il.com>
Cc:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Marc Reilly <marc@...esign.com.au>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Sascha Hauer <kernel@...gutronix.de>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: mc13xxx-core: kernel hangs after 'regmap_read'

Le mardi 22 mai 2012 08:40:30 Fabio Estevam a écrit :
> Hi Philippe,
> 
> On Tue, May 22, 2012 at 6:25 AM, Mark Brown
> 
> <broonie@...nsource.wolfsonmicro.com> wrote:
> > It's only this chip that's doing so.  I'd suggest putting a scope on it
> > and having a look at the formatted data.
> 
> Does mx31-moboard allow you to put the scope on the SPI lines
> connected to the mc13783?

Yes, I have access to MISO/MOSI/CLK, but not CS on mx31moboard.
BTW, mx31-ads give access to the full SPI bus, but I never booted it.

I cannot debug this right now, but I should be able to do it on friday.

Regards,

Philippe

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