linux-kernel - Re: [linux-pm] [PATCH 7/9] PM / Runtime: Add generic clock manipulation rountines for runtime PM

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Date:	Tue, 19 Apr 2011 23:35:34 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Linux PM mailing list <linux-pm@...ts.linux-foundation.org>,
	linux-sh@...r.kernel.org, Greg KH <gregkh@...e.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [linux-pm] [PATCH 7/9] PM / Runtime: Add generic clock manipulation rountines for runtime PM

On Tuesday, April 19, 2011, Mark Brown wrote:
> On Sun, Apr 17, 2011 at 01:42:10AM +0200, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rjw@...k.pl>
> > 
> > Many different platforms and subsystems may want to disable device
> > clocks during suspend and enable them during resume which is going to
> > be done in a very similar way in all those cases.  For this reason,
> > provide generic routines for the manipulation of device clocks during
> > suspend and resume.
> 
> > Convert the ARM shmobile platform to using the new routines.
> 
> I've had similar thoughts with respect to the regulator API - I'd been
> thinking of dealing with this by adding a notifier which subsystems
> could build upon, in much the same way as already exists for the system
> ssuspend and resume events.

Well, I generally avoid using notifiers, because they lead to big functions
that carry out many different tasks.

That said, I think consolidation and reduction of duplicate code is all good,
this way or another. :-)

Thanks,
Rafael
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