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Message-ID: <CAOLK0pztfCd9ov297t0CW0C5S2iOSb9FJFHq9ycqwYGRiyifmA@mail.gmail.com> Date: Tue, 27 Aug 2013 22:04:52 +0800 From: Lan Tianyu <lantianyu1986@...il.com> To: Viresh Kumar <viresh.kumar@...aro.org> Cc: "Rafael J. Wysocki" <rjw@...k.pl>, Lists linaro-kernel <linaro-kernel@...ts.linaro.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>, "cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org> Subject: Re: [Query] CPUFreq: Why do we need policy->user_policy? 2013/8/27 Viresh Kumar <viresh.kumar@...aro.org>: > On 26 August 2013 20:53, Lan Tianyu <lantianyu1986@...il.com> wrote: >> So far as I know, it stores some user's config and cpufreq_update_policy() >> bases on the data in the struct to start a new policy. Cpu thermal driver >> （/driver/thermal/cpu_cooling.c）also will its value to update freq policy >> when receive a cpufreq policy adjust notification. > > Yeah, but how are these different from policy->min/max/policy/governor? > Why do we need to replicate this information? >From my understanding.policy->min/max may be modified by some drivers but the user_policy only store user space config and should not be changed by other reason. :) -- Best regards Tianyu Lan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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