linux-kernel - Re: [PATCH/RFC] platform_bus: Allow runtime PM by default

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Message-Id: <201003280032.01011.rjw@sisk.pl>
Date:	Sun, 28 Mar 2010 00:32:00 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	"Greg Kroah-Hartman" <gregkh@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pm@...ts.linux-foundation.org" 
	<linux-pm@...ts.linux-foundation.org>
Subject: Re: [PATCH/RFC] platform_bus: Allow runtime PM by default

On Saturday 27 March 2010, Mark Brown wrote:
> On 26 Mar 2010, at 22:35, "Rafael J. Wysocki" <rjw@...k.pl> wrote:
> 
> > On Friday 26 March 2010, Mark Brown wrote:
> >> Currently the default runtime PM callbacks for platform devices  
> >> return
> >> -ENOSYS, preventing the use of runtime PM platforms until they have
> >> provided at least a default implementation. This hinders the use of
> >> runtime PM by devices which work with many platforms such as memory
> >> mapped devices, MFDs and on chip IPs shared by multiple  
> >> architectures.
> >>
> >> Change the default implementation to the standard pm_generic_runtime
> >> one, allowing drivers to use runtime PM without per-architecture
> >> changes.
> >>
> >> Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
> >
> > Acked-by: Rafael J. Wysocki <rjw@...k.pl>
> >
> > Is it very urgent?
> 
> Not especially - worst case you just don't get devices suspending  
> which isn't the end of the world and there's no build time  
> dependencies introduced.

OK, so I guess it will be sufficient if Greg queues it for .35.

Rafael
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