linux-kernel - Re: [PATCH 04/15] arm: dts: rk322x: Add missing cooling device properties for CPUs

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Message-ID: <6654764.Ls0NFkadpc@phil>
Date:   Sun, 17 Jun 2018 16:47:07 +0200
From:   Heiko Stuebner <heiko@...ech.de>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     arm@...nel.org, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        ionela.voinescu@....com,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        chris.redpath@....com, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 04/15] arm: dts: rk322x: Add missing cooling device properties for CPUs

Am Freitag, 25. Mai 2018, 12:31:50 CEST schrieb Viresh Kumar:
> 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.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>

applied for 4.19

Thanks
Heiko