linux-kernel - Re: [PATCH 1/2] regulators: Add definition of regulator_set_voltage_time() for !CONFIG

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Message-ID: <20140602095112.GV5099@sirena.org.uk>
Date:	Mon, 2 Jun 2014 10:51:12 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Lists linaro-kernel <linaro-kernel@...ts.linaro.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Arvind Chauhan <arvind.chauhan@....com>,
	Eduardo Valentin <edubezval@...il.com>,
	Pavel Machek <pavel@....cz>,
	Liam Girdwood <lgirdwood@...il.com>
Subject: Re: [PATCH 1/2] regulators: Add definition of
 regulator_set_voltage_time() for !CONFIG_REGULATOR

On Mon, Jun 02, 2014 at 12:50:59PM +0530, Viresh Kumar wrote:
> On 28 May 2014 23:08, Mark Brown <broonie@...nel.org> wrote:
> > Whatever - I don't think the particular code makes any practical
> > difference.  We would need to audit existing users who don't have a
> > REGULATOR dependency for breakage though.

> I tried auditing all 29 files which had this symbol: regulator_set_voltage
> and couldn't find anything which might break with the proposed change.

> Either these are making sure that we have a valid regulator or they have
> code inside #ifdef CONFIG_REGULATOR ..

When you say they check for a valid regulator how are they doing that?
The stub will come into play if there isn't a dependency on REGULATOR.

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