linux-kernel - Re: [PATCH 2/2] cpufreq: qcom-hw: Add support for QCOM cpufreq HW driver

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Message-ID: <20181105103807.GA12647@e107155-lin>
Date:   Mon, 5 Nov 2018 10:38:07 +0000
From:   Sudeep Holla <sudeep.holla@....com>
To:     Taniya Das <tdas@...eaurora.org>
Cc:     Stephen Boyd <swboyd@...omium.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        Rajendra Nayak <rnayak@...eaurora.org>,
        devicetree@...r.kernel.org, robh@...nel.org,
        skannan@...eaurora.org, linux-arm-msm@...r.kernel.org,
        amit.kucheria@...aro.org, evgreen@...gle.com,
        Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH 2/2] cpufreq: qcom-hw: Add support for QCOM cpufreq HW
 driver

On Sat, Nov 03, 2018 at 08:36:00AM +0530, Taniya Das wrote:
> Hello Stephen,
>
> On 10/18/2018 5:02 AM, Stephen Boyd wrote:
> > Quoting Taniya Das (2018-10-11 04:36:01)
> > > --- a/drivers/cpufreq/Kconfig.arm
> > > +++ b/drivers/cpufreq/Kconfig.arm

[...]

> > > +static const u16 cpufreq_qcom_std_offsets[REG_ARRAY_SIZE] = {
> >
> > Is this going to change in the future?
> >
>
> Yes, they could change and that was the reason to introduce the offsets.
> This was discussed earlier too with Sudeep and was to add them.

Sorry, I didn't like these registers to be coming from DT and I had the
same question: will this keep changing ? And IIRC, the answer was yes.
But I agree with Stephen, if and when we see the change, you can
introduce the array and keep it simple until then.

--
Regards,
Sudeep