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From:   Rob Herring <robh+dt@kernel.org>
Date:   Tue, 31 Oct 2017 11:02:51 -0500
Message-ID: <CAL_JsqKr7MsM6iZ_QYO=iCzXNwANEGQGDLFUEwe0Z-p2Z_aMYw@mail.gmail.com>
Subject: Re: [RFC V7 2/2] OPP: Allow "opp-hz" and "opp-microvolt" to contain
 magic values
To:     Viresh Kumar <viresh.kumar@linaro.org>
Cc:     Ulf Hansson <ulf.hansson@linaro.org>,
        Kevin Hilman <khilman@kernel.org>,
        Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
        Stephen Boyd <sboyd@codeaurora.org>,
        Rafael Wysocki <rjw@rjwysocki.net>,
        "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Rajendra Nayak <rnayak@codeaurora.org>,
        Sudeep Holla <sudeep.holla@arm.com>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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On Tue, Oct 31, 2017 at 7:47 AM, Viresh Kumar <viresh.kumar@linaro.org> wrote:
> On some platforms the exact frequency or voltage may be hidden from the
> OS by the firmware. Allow such configurations to pass magic values in
> the "opp-hz" or the "opp-microvolt" properties, which should be
> interpreted in a platform dependent way.

Why not a new property for magic values? opp-magic? Don't we want to
know when we have magic values?

Wouldn't magic values in opp-hz get propagated to user space? I can
see the complaints now. "My 4GHz processor is running at 6Hz!" Just
like people complain when BogoMIPS is not high enough.

Rob

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