linux-kernel - Re: Driver lis3lv02d_i2c not working on Nokia RX-51

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Message-ID: <20130217162523.GC1583@opensource.wolfsonmicro.com>
Date:	Sun, 17 Feb 2013 16:25:24 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Pali Rohár <pali.rohar@...il.com>
Cc:	Eric Piel <eric.piel@...mplin-utc.net>,
	Ilkka Koskinen <ilkka.koskinen@...ia.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: Driver lis3lv02d_i2c not working on Nokia RX-51

On Sun, Feb 17, 2013 at 12:46:25AM +0100, Pali Rohár wrote:

> Accelerometer driver lis3lv02d_i2c not working on Nokia RX-51 
> with linux kernel 3.8-rc3. Probing for i2c device failing.

> I tried to compile older version and it working without problem. 
> Then I bisected commit which broke support for RX-51.

> That commit is ec400c9fab99d16a491cea17d27d0c6a5780b97c
> "lis3lv02d: make regulator API usage unconditional"

> CCing everybody who signed off that commit. When I reverted that 
> commit on top of 3.8-rc3, lis3lv02d working without problem.

> It looks like driver is trying to use some regulator, but there 
> is nothing defined for RX-51.

> Any idea what to do?

It would be helpful to provide some more detailed information on the
problem you are seeing than "the probe is failing".  Are there any error
messages or other indications as to where in the probe the error occurs?

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