linux-kernel - Re: [PATCH 14/15] arm: dts: qcom: Add missing OPP properties for CPUs

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Date:   Sat, 21 Jul 2018 13:56:04 -0500
From:   Andy Gross <andy.gross@...aro.org>
To:     Amit Kucheria <amit.kucheria@...durent.com>
Cc:     Viresh Kumar <viresh.kumar@...aro.org>, arm@...nel.org,
        David Brown <david.brown@...aro.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-msm <linux-arm-msm@...r.kernel.org>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-soc@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 14/15] arm: dts: qcom: Add missing OPP properties for CPUs

On Wed, Jul 18, 2018 at 03:52:26PM +0530, Amit Kucheria wrote:
> On Fri, May 25, 2018 at 4:02 PM, 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>
> 
> FWIW,
> Reviewed-by: Amit Kucheria <amit.kucheria@...aro.org>

Picking this up for 4.19.  thanks.

Andy