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

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Message-ID: <CAOMZO5BCcFOktp9mqDCpnrVhbK6pwO1R3ZdiKPfawb=KLjzzWw@mail.gmail.com>
Date:	Tue, 22 May 2012 22:12:59 -0300
From:	Fabio Estevam <festevam@...il.com>
To:	marc@...esign.com.au
Cc:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Sascha Hauer <kernel@...gutronix.de>,
	Philippe Rétornaz <philippe.retornaz@...l.ch>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: mc13xxx-core: kernel hangs after 'regmap_read'

Hi Marc,

On Mon, May 21, 2012 at 9:53 PM, Marc Reilly <marc@...esign.com.au> wrote:

> Does your crash occur during mc13xxx_spi_probe?

Yes

> does mc13xxx_common_init() get  called?

Yes

The sequence that shows the problem is:

mc13xxx_spi_probe
mc13xxx_common_init
mc13xxx_identify
mc13xxx_reg_read
regmap_read (kernel hangs)
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