linux-kernel - Re: [PATCH v7 12/14] cpufreq: Add Kryo CPU scaling driver

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Message-ID: <2615751.ZtaStQGZr4@aspire.rjw.lan>
Date:   Tue, 15 May 2018 11:28:48 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        Ilia Lin <ilialin@...eaurora.org>
Cc:     mturquette@...libre.com, sboyd@...nel.org, robh@...nel.org,
        mark.rutland@....com, nm@...com, lgirdwood@...il.com,
        broonie@...nel.org, andy.gross@...aro.org, david.brown@...aro.org,
        catalin.marinas@....com, will.deacon@....com,
        linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, rnayak@...eaurora.org,
        amit.kucheria@...aro.org, nicolas.dechesne@...aro.org,
        celster@...eaurora.org, tfinkel@...eaurora.org
Subject: Re: [PATCH v7 12/14] cpufreq: Add Kryo CPU scaling driver

On Tuesday, May 15, 2018 11:19:12 AM CEST Viresh Kumar wrote:
> On 15-05-18, 12:13, Ilia Lin wrote:
> > In Certain QCOM SoCs like apq8096 and msm8996 that have KRYO processors,
> > the CPU ferequencies subset and voltage value of each OPP varies
> > based on the silicon variant in use. Qualcomm Process Voltage Scaling Tables
> > defines the voltage and frequency value based on the msm-id in SMEM
> > and speedbin blown in the efuse combination.
> > The qcom-cpufreq-kryo driver reads the msm-id and efuse value from the SoC
> > to provide the OPP framework with required information.
> > This is used to determine the voltage and frequency value for each OPP of
> > operating-points-v2 table when it is parsed by the OPP framework.
> > 
> > Signed-off-by: Ilia Lin <ilialin@...eaurora.org>
> > ---
> >  drivers/cpufreq/Kconfig.arm          |  11 +++
> >  drivers/cpufreq/Makefile             |   1 +
> >  drivers/cpufreq/cpufreq-dt-platdev.c |   3 +
> >  drivers/cpufreq/qcom-cpufreq-kryo.c  | 150 +++++++++++++++++++++++++++++++++++
> >  4 files changed, 165 insertions(+)
> >  create mode 100644 drivers/cpufreq/qcom-cpufreq-kryo.c
> 
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

OK, but I'm assuming that this will go in via arm-soc.

Thanks,
Rafael