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From: viresh kumar <viresh.kumar@linaro.org>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Dirk Brandewie <dirk.brandewie@gmail.com>
Cc: Nishanth Menon <nm@ti.com>,
	Lists linaro-kernel <linaro-kernel@lists.linaro.org>,
	Patch Tracking <patches@linaro.org>,
	"cpufreq@vger.kernel.org" <cpufreq@vger.kernel.org>,
	"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Shawn Guo <shawn.guo@linaro.org>, Sripa Bagadia <ceh@ti.com>
Subject: Re: [PATCH] cpufreq: Make sure CPU is running on a freq from freq-table
Date: Fri, 22 Nov 2013 12:36:06 +0530	[thread overview]
Message-ID: <528F025E.70202@linaro.org> (raw)
In-Reply-To: <1980582.Pd2pT79ZWp@vostro.rjw.lan>

On Friday 22 November 2013 03:13 AM, Rafael J. Wysocki wrote:
> On Thursday, November 21, 2013 09:56:32 AM Dirk Brandewie wrote:

>> The scaling driver for the CPU has already loaded and its .init procedure has 
>> been called so .target better be callable.

Yeah..

>> Since the scaling driver is responsible maintaining the set of valid frequencies
>> and setting policy->cur I think it is reasonable to have the scaling driver
>> ensure that policy->cur returned from its .init

I agree..

>> and the operating frequency are
>> in sync and match one of the values in its frequency table.

Hmmm, that doesn't necessarily lie in driver's domain but maybe at a common
place like core. That's why we had this patch..

> From that I infer that we should not continue on errors here.  Which also is my
> opinion.

Okay.. Code modified to return error on failure.. Will send V2 as soon as patch
is tested by Nishanth..

  reply	other threads:[~2013-11-22  7:06 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-21  7:09 [PATCH] cpufreq: Make sure CPU is running on a freq from freq-table Viresh Kumar
2013-11-21 13:11 ` Rafael J. Wysocki
2013-11-21 15:57   ` Viresh Kumar
2013-11-21 17:56     ` Dirk Brandewie
2013-11-21 21:43       ` Rafael J. Wysocki
2013-11-22  7:06         ` viresh kumar [this message]
2013-11-22  7:03 ` viresh kumar
2013-11-22 21:43   ` Nishanth Menon

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