From mboxrd@z Thu Jan  1 00:00:00 1970
From: Viresh Kumar <viresh.kumar@linaro.org>
Subject: Re: [PATCH v5 7/7] Documentation:cpufreq:boost: Update BOOST documentation
Date: Wed, 17 Jul 2013 13:29:26 +0530
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To: Lukasz Majewski <l.majewski@samsung.com>
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>
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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.