linux-kernel - Re: [PATCH V2 2/2] arm: dts: sunxi: Add missing cooling device properties for CPUs

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Message-ID: <20180605071139.osu2pgpg3ychdxln@flea>
Date:   Tue, 5 Jun 2018 09:11:39 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     arm@...nel.org, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Chen-Yu Tsai <wens@...e.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        ionela.voinescu@....com,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        chris.redpath@....com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 2/2] arm: dts: sunxi: Add missing cooling device
 properties for CPUs

On Tue, Jun 05, 2018 at 10:17:49AM +0530, Viresh Kumar wrote:
> The cooling device properties, like "#cooling-cells" and
> "dynamic-power-coefficient", should either be present for all the CPUs
> of a cluster or none. If these are present only for a subset of CPUs of
> a cluster then things will start falling apart as soon as the CPUs are
> brought online in a different order. For example, this will happen
> because the operating system looks for such properties in the CPU node
> it is trying to bring up, so that it can register a cooling device.
> 
> Add such missing properties.
> 
> Fix other missing properties (clocks, OPP, clock latency) as well to
> make it all work.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>

Applied both, thanks!
Maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

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