From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lukasz Majewski <l.majewski@samsung.com>
Subject: Re: [PATCH v5 7/7] Documentation:cpufreq:boost: Update BOOST
 documentation
Date: Wed, 17 Jul 2013 10:13:40 +0200
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To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>, Zhang Rui <rui.zhang@intel.com>, Eduardo Valentin <eduardo.valentin@ti.com>, "cpufreq@vger.kernel.org" <cpufreq@vger.kernel.org>, Linux PM list <linux-pm@vger.kernel.org>, Jonghwa Lee <jonghwa3.lee@samsung.com>, l.majewski@majess.pl, linux-kernel <linux-kernel@vger.kernel.org>, Andre Przywara <andre.przywara@linaro.org>, Daniel Lezcano <daniel.lezcano@linaro.org>, Kukjin Kim <kgene.kim@samsung.com>, Myungjoo Ham <myungjoo.ham@samsung.com>

On Wed, 17 Jul 2013 13:29:26 +0530 Viresh Kumar viresh.kumar@linaro.org
wrote,
> On 17 July 2013 13:06, Lukasz Majewski <l.majewski@samsung.com> wrote:
> > At v4 there was the old acpi-cpufreq.c behaviour preserved (with
> > always exporting boost - when not supported ro, when supported rw).
> >
> > Due to Rafael and Dirk comments it has been rewritten at v5:
> >
> > http://thread.gmane.org/gmane.linux.kernel/1511831/match=patch+v4+2+7+cpufreq+add+boost+frequency+support+core
> >
> >
> >>
> >> Rafael Said:
> >> "Simple: Export it only when supported."
> >               [*]
> >
> >>
> >> AND
> >>
> >> "Don't change behavior of acpi-cpufreq driver"
> >               [**]
> >>
> >> If you see acpi-cpufreq driver carefully, it always creates "boost"
> >> sysfs entry. If its not supported then it creates a read only
> >> entry.
> >
> > For me those two statements [*] and [**] contradict:
> >
> > At v5:
> > 1. ARM - export "boost" only when supported (rw)
> > 2. x86 - export boost only when x86 supports it (as rw). When x86
> >          doesn't support HW boost - DO NOT export it at all.
> >
> > At v4:
> > 1. ARM - export "boost" only when supported (rw)
> > 2. x86 - always export boost - no matter if supported or not. If not
> >          supported, then export it as ro only.
> 
> Okay, there is some confusion..
> 
> I have raised a query on your v4 mail.. lets see what people have to
> say.

Ok.

-- 
Best regards,

Lukasz Majewski

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