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Re: [PATCH] cpufreq: pass policy to ->get() driver callback

From "Rafael J. Wysocki" <rjw@rjwysocki.net>
Newsgroups linux.kernel
Subject Re: [PATCH] cpufreq: pass policy to ->get() driver callback
Date 2015-09-04 16:30 +0200
Message-ID <q50a6-4GT-11@gated-at.bofh.it> (permalink)
References <pSg30-36x-19@gated-at.bofh.it> <q4uDg-1wY-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thursday, September 03, 2015 10:15:45 AM Viresh Kumar wrote:
> On 31-07-15, 16:14, Viresh Kumar wrote:
> > CPUFreq drivers today support ->get(cpu) callback, which returns current
> > clock rate of the CPU. The problem with ->get() is that it takes cpu
> > number as parameter and this unnecessarily makes things complex.
> > 
> > Firstly the core gets the cpu number by doing operation 'policy->cpu' on
> > the policy and then many drivers need to get the policy back and so do
> > cpufreq_cpu_get(cpu) on the cpu passed as argument to ->get().
> > 
> > It would be better if we pass them 'policy' directly and drivers can use
> > policy->cpu if that's all they need.
> > 
> > Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
> 
> Is this getting moved to 4.4?

I'm really unsure about this change at all.

I have a concern that it may not go in the right direction.  I'll say more about
that later today.

Thanks,
Rafael

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Re: [PATCH] cpufreq: pass policy to ->get() driver callback Viresh Kumar <viresh.kumar@linaro.org> - 2015-09-03 06:50 +0200
  Re: [PATCH] cpufreq: pass policy to ->get() driver callback "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-09-04 16:30 +0200

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