From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Subject: Re: [PATCH v3 2/5] powernv,cpufreq:Add per-core locking to serialize
 frequency transitions
Date: Fri, 21 Mar 2014 15:26:13 +0530
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To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>, linuxppc-dev@ozlabs.org, Linux PM list <linux-pm@vger.kernel.org>, benh@kernel.crashing.org, svaidy@linux.vnet.ibm.com

On 03/21/2014 02:12 PM, Viresh Kumar wrote:
> On Thu, Mar 20, 2014 at 5:40 PM, Gautham R. Shenoy
> <ego@linux.vnet.ibm.com> wrote:
>> From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
>>
>> On POWER systems, the CPU frequency is controlled at a core-level and
>> hence we need to serialize so that only one of the threads in the core
>> switches the core's frequency at a time.
> 
> Probably you don't need this anymore.
> 
> https://lkml.org/lkml/2014/3/21/23
> 

Agreed.

Regards,
Srivatsa S. Bhat