linux-kernel - Re: [PATCH 04/10] ARM: dts: sun[4-7]i: Remove "cooling-{min|max}-level" for CPU nodes

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Message-ID: <20180214031252.GW28462@vireshk-i7>
Date:   Wed, 14 Feb 2018 08:42:52 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Rafael Wysocki <rjw@...ysocki.net>,
        "open list:THERMAL" <linux-pm@...r.kernel.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Eduardo Valentin <edubezval@...il.com>,
        Zhang Rui <rui.zhang@...el.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 04/10] ARM: dts: sun[4-7]i: Remove
 "cooling-{min|max}-level" for CPU nodes

On 13-02-18, 17:18, Chen-Yu Tsai wrote:
> On Tue, Feb 13, 2018 at 5:13 PM, Maxime Ripard
> <maxime.ripard@...tlin.com> wrote:
> > On Fri, Feb 09, 2018 at 02:28:04PM +0530, Viresh Kumar wrote:
> >> The "cooling-min-level" and "cooling-max-level" properties are not
> >> parsed by any part of the kernel currently and the max cooling state of
> >> a CPU cooling device is found by referring to the cpufreq table instead.
> 
> That doesn't mean that other systems aren't using it.

Are you aware of any systems which are using them ?

> It's still part of
> the device tree binding. Last I checked, while they are optional, they
> aren't deprecated.

Yeah, it isn't deprecated yet. Though the last patches of this series
tries to do something similar.

> Any comments from the device tree maintainers?

None yet.

-- 
viresh