linux-kernel - Re: [PATCH 4/4] ARM i.MX 3ds debugboard: register a dummy regulator for the smsc911x device

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Date:	Mon, 26 Mar 2012 20:19:12 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Fabio Estevam <festevam@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	Estevam Fabio-R49496 <r49496@...escale.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 4/4] ARM i.MX 3ds debugboard: register a dummy regulator
 for the smsc911x device

On Mon, Mar 26, 2012 at 03:09:34PM -0300, Fabio Estevam wrote:
> Hi Sascha,
> 
> On Sat, Mar 3, 2012 at 8:40 AM, Sascha Hauer <s.hauer@...gutronix.de> wrote:
> > Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
> 
> ...
> >        /* Register Lan device on the debugboard */
> > +       regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
> 
> I am using linux-next, which has this patch applied and I am getting:
> 
> smsc911x smsc911x.0: Failed to get supply 'vdd33a': -517
> smsc911x smsc911x.0: (unregistered net_device): couldn't get regulators -517
> platform smsc911x.0: Driver smsc911x requests probe deferral
> 
> Does this work for you on pcm037?

At least it did work when I sent the patches, but -EPROBE_DEFER did not
exist at that time. Do you have the fixed regulator enabled in your
config?

> 
> If I select CONFIG_REGULATOR_DUMMY then the the smsc driver is probed
> correctly, but if I understand correctly your suggestion was to not
> select CONFIG_REGULATOR_DUMMY, right?

Right.

Sascha

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