linux-kernel - Re: [PATCH] cpufreq: suspend/resume governors with PM notifiers

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Message-ID: <3682408.uVrpujAYh7@vostro.rjw.lan>
Date:	Thu, 26 Dec 2013 01:56:25 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Pavel Machek <pavel@....cz>
Cc:	Viresh Kumar <viresh.kumar@...aro.org>,
	Lists linaro-kernel <linaro-kernel@...ts.linaro.org>,
	Patch Tracking <patches@...aro.org>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Lan Tianyu <tianyu.lan@...el.com>, Nishanth Menon <nm@...com>,
	jinchoi@...adcom.com,
	Sebastian Capella <sebastian.capella@...aro.org>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
Subject: Re: [PATCH] cpufreq: suspend/resume governors with PM notifiers

On Wednesday, December 25, 2013 11:39:07 PM Pavel Machek wrote:
> Hi!
> 
> > > > Well, disabling it for the whole duration of suspend/resume and/or hibernation
> > > > may not be the right approach entirely, unless we force the pax perf of the
> > > 
> > > s/pax/max ?
> > 
> > Yes.
> 
> I'm not sure max frequency is a good idea. In particular, early
> athlon64 notebooks could not run on max frequency on battery power.
> 
> IMO it would be good to keep governors running during hibernation.

The idea of using PM notifiers for cpufreq suspend/resume has been abandoned
already.

Thanks,
Rafael

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