linux-kernel - Re: [PATCH 4/4] cpu_cooling: Drop static-power related stuff

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Message-ID: <20171115113133.GA10252@localhost>
Date:   Wed, 15 Nov 2017 11:31:33 +0000
From:   Javi Merino <javi.merino@...nel.org>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     Rafael Wysocki <rjw@...ysocki.net>, edubezval@...il.com,
        Amit Daniel Kachhap <amit.kachhap@...il.com>,
        Zhang Rui <rui.zhang@...el.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>, linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        lukasz.luba@....com, linux-kernel@...r.kernel.org,
        Punit Agrawal <punit.agrawal@....com>
Subject: Re: [PATCH 4/4] cpu_cooling: Drop static-power related stuff

On Wed, Nov 15, 2017 at 02:49:48PM +0530, Viresh Kumar wrote:
> No one has used it for the last two and half years (since it was
> introduced by commit c36cf0717631 ("thermal: cpu_cooling: implement the
> power cooling device API")), get rid of it.

Linaro used it in lsk 3.18 for the cpufreq driver for Juno.  The cpufreq
driver was converted to the generic one from dt in lsk 4.4, but the
generic cpufreq driver does not support static power because everything
has to come from device tree and we don't have a way to specify it there.

Cheers,
Javi