From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lukasz Majewski <l.majewski@samsung.com>
Subject: Re: [PATCH v4 2/7] cpufreq: Add boost frequency support in core
Date: Fri, 28 Jun 2013 09:31:05 +0200
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To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: "Rafael J. Wysocky" <rjw@sisk.pl>, "cpufreq@vger.kernel.org" <cpufreq@vger.kernel.org>, Linux PM list <linux-pm@vger.kernel.org>, Vincent Guittot <vincent.guittot@linaro.org>, Jonghwa Lee <jonghwa3.lee@samsung.com>, Myungjoo Ham <myungjoo.ham@samsung.com>, linux-kernel <linux-kernel@vger.kernel.org>, Lukasz Majewski <l.majewski@majess.pl>, Andre Przywara <andre.przywara@linaro.org>, Daniel Lezcano <daniel.lezcano@linaro.org>, Kukjin Kim <kgene.kim@samsung.com>, Zhang Rui <rui.zhang@intel.com>, Eduardo Valentin <eduardo.valentin@ti.com>
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On Fri, 28 Jun 2013 12:21:21 +0530, Viresh Kumar wrote:

> On 28 June 2013 12:19, Lukasz Majewski <l.majewski@samsung.com> wrote:
> > No, I will use:
> >
> > if (boost_enabled != state) {
> >         write_lock_irqsave(&cpufreq_driver_lock, flags);
> >         boost_enabled = state;
> >
> >         ret = cpufreq_driver->enable_boost(state);
> >         ^^^^^^^^^^^^^^^^^^^^ only one callback call
> >         if (ret)
> >                 boost_enabled = 0;
> >
> >         write_unlock_irqrestore(&cpufreq_driver_lock, flags);
> >
> >         if (ret)
> >                 pr_err("%s: BOOST cannot enable (%d)\n",
> >                        __func__, ret);
> > }
> >
> > and @ cpufreq_register_driver() I will add following line:
> >
> > if (!cpufreq_driver->enable_boost)
> >         cpufreq_driver->enable_boost = &cpufreq_boost_enable_sw;
> >
> > When cpufreq driver doesn't define callback for enable_boost it
> > will be filled with default SW cpufreq_boost_enable_sw callback.
> 
> That's some smart  code. Good. :)

OK

-- 
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group