linux-kernel - Re: [PATCH V2] cpufreq: Make sure CPU is running on a freq from freq-table

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Message-ID: <1591147.c0NqbMglPZ@vostro.rjw.lan>
Date:	Thu, 28 Nov 2013 21:31:53 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Dirk Brandewie <dirk.brandewie@...il.com>,
	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>,
	Nishanth Menon <nm@...com>, Carlos Hernandez <ceh@...com>
Subject: Re: [PATCH V2] cpufreq: Make sure CPU is running on a freq from freq-table

On Thursday, November 28, 2013 07:44:02 PM Viresh Kumar wrote:
> On 28 November 2013 19:42, Rafael J. Wysocki <rjw@...ysocki.net> wrote:
> > On Thursday, November 28, 2013 07:11:17 PM Viresh Kumar wrote:
> >> Okay.. So wouldn't it be better that we add this special flag only when we
> >> face a real problem? Otherwise this flag might stay unused for long time
> >> and then we might end up removing it..
> 
> What about this one?

Well, so are you saying that the problem is only theoretical now?

> > SKIP_INITIAL_FREQUENCY_CHECK ?
> 
> Looks fine.. In case this is required, you want this to be set initially for any
> driver?

That depends on what is less work and code churn.  How many platforms/drivers
have this problem today?  Which ones are they?

Rafael

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