linux-kernel - Re: da9052-regulator fails to probe in linux-next

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Message-ID: <20141209212708.GL11764@sirena.org.uk>
Date:	Tue, 9 Dec 2014 21:27:08 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Fabio Estevam <festevam@...il.com>
Cc:	anthony.olech.opensource@...semi.com,
	support.opensource@...semi.com,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Olof Johansson <olof@...om.net>
Subject: Re: da9052-regulator fails to probe in linux-next

On Tue, Dec 09, 2014 at 07:17:14PM -0200, Fabio Estevam wrote:

> Seem like this issue is not specific to the da9052 regulator.

> On a imx6q-wandboard we can see the internal anatop regulators being
> probed on linux-next 20141031:
> http://arm-soc.lixom.net/bootlogs/next/next-20141031/wandboard-arm-imx_v6_v7_defconfig.html
> 
> [    0.072014] vdd1p1: 800 <--> 1375 mV at 1100 mV
> [    0.073027] vdd3p0: 2800 <--> 3150 mV at 3000 mV
> [    0.073933] vdd2p5: 2000 <--> 2750 mV at 2400 mV
> [    0.074888] vddarm: 725 <--> 1450 mV at 1150 mV
> [    0.075935] vddpu: 725 <--> 1450 mV at 1150 mV
> [    0.076897] vddsoc: 725 <--> 1450 mV at 1200 mV

> ,but since next-20141103 they do not probe anymore:
> http://arm-soc.lixom.net/bootlogs/next/next-20141103/wandboard-arm-imx_v6_v7_defconfig.html

That last log looks *extremely* unhappy in general, I can't actually see
any references to attempts to do regulator things and there's lots of
backtraces in there.  AFAICT those regulators are anatop regulators and
I can't find references to that driver or anything called "vdd".

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