linux-kernel - Re: [PATCH 12/15] arm: dts: highbank: Add missing OPP properties for CPUs

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Date:   Mon, 2 Jul 2018 14:25:40 -0600
From:   Rob Herring <robh@...nel.org>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        ARM-SoC Maintainers <arm@...nel.org>
Cc:     Mark Rutland <mark.rutland@....com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        ionela.voinescu@....com,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        chris.redpath@....com,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>, devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 12/15] arm: dts: highbank: Add missing OPP properties for CPUs

On Fri, May 25, 2018 at 4:32 AM Viresh Kumar <viresh.kumar@...aro.org> wrote:
>
> The OPP properties, like "operating-points", 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 create an OPP
> table.
>
> Add such missing properties.
>
> Fix other missing property (clock latency) as well to make it all
> work.
>
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
> ---
>  arch/arm/boot/dts/highbank.dts | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)

Acked-by: Rob Herring <robh@...nel.org>

ARM-SOC maintainers, Please apply this.

Rob