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SubjectRe: [PATCH v5 0/3] powernv,cpufreq: Dynamic Frequency Scaling support
From
On 29 March 2014 01:41, Gautham R. Shenoy <ego@linux.vnet.ibm.com> wrote:
> From: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>
>
> Hi,
>
> This is v5 of the patchset to enable dynamic frequency scaling on IBM
> PowerNV platforms. This patchset does address all the review comments
> obtained for v4 (which can be found at [1]).
>
> Changes from v4:
>
> * Created a separate patch to select the CPUFreq related Config
> options for PowerNV
>
> * Dropped the per-core locking hunks in
> drivers/cpufreq/powernv-cpufreq.c since the CPUFreq core takes
> care of the for us after the following commit which is present in
> linux-next:
>
> commit 12478cf0c55e5969f740bb38a24b1a0104ae18d8
> Author: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
> Date: Mon Mar 24 13:35:44 2014 +0530
>
> cpufreq: Make sure frequency transitions are serialized
>
> * [PATCH v5 3/3] gets rid of the powernv_pstate_ids[] array that
> was being used to record the pstate ids. After the following
> patch it is safe to use cpufreq_frequency_table.driver_data
> since it is opaque to the cpufreq core:
>
> From: Viresh Kumar <viresh.kumar@linaro.org>
> Date: 2014-03-28 13:53:47
> url: http://marc.info/?l=linux-pm&m=139601416804702&w=2
>
> cpufreq: create another field .flags in cpufreq_frequency_table
>
> The patchset is based on the commit
> 201544be8c37dffbf069bb5fc9edb5674f8c1754 of the linux-next tree.
>
> While all the patches in the patchset apply cleanly on linux-next,
> [PATCH v5 3/3] requires the Viresh's patch that was mentioned
> above. Otherwise, the frequency corresponding to pstate id -3 will be
> omited while reporting the "scaling_available_frequencies" in sysfs.
>
> [1]: http://marc.info/?l=linux-pm&m=139585297620612&w=2
>
> Gautham R. Shenoy (2):
> powernv, cpufreq: Select CPUFreq related Kconfig options for powernv

Make this patch 3/3 (Probably Rafael can do this while applying)

> powernv,cpufreq: Use cpufreq_frequency_table.driver_data to store
> pstate ids
>
> Vaidyanathan Srinivasan (1):
> powernv, cpufreq: cpufreq driver for powernv platform

Otherwise,

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>


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