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Groups > linux.kernel > #1219088
| 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 |
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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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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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