linux-kernel - Re: PWM backlight build warning

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Message-ID: <20130406211041.GA15987@avionic-0098.mockup.avionic-design.de>
Date:	Sat, 6 Apr 2013 23:10:42 +0200
From:	Thierry Reding <thierry.reding@...onic-design.de>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Tony Prisk <linux@...sktech.co.nz>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, akpm@...ux-foundation.org
Subject: Re: PWM backlight build warning

On Sat, Apr 06, 2013 at 09:02:51PM +0100, Mark Brown wrote:
> On Sun, Apr 07, 2013 at 06:33:35AM +1200, Tony Prisk wrote:
> 
> > The problem occurs because when CONFIG_PM=y but CONFIG_PM_SLEEP=n:
> 
> > I guess this would be a problem on every driver that has been
> > converted to SIMPLE_DEV_PM_OPS.
> > I don't know enough about the PM code to offer a fix, or whethermy
> > chosen config is just 'invalid'.
> 
> You just need to put the system suspend functions inside an ifdef
> CONFIG_PM_SLEEP instead of CONFIG_PM.

I carry a fix for that in my for-next branch.

Thierry

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