Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for power-domains

From	Viresh Kumar <viresh.kumar@linaro.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for power-domains
Date	2017-04-19 13:50 +0200
Message-ID	<txWhr-2Xi-3@gated-at.bofh.it> (permalink)
References	(2 earlier) <tvtME-6Uu-51@gated-at.bofh.it> <tvFE5-6Oa-7@gated-at.bofh.it> <tvNii-3GT-17@gated-at.bofh.it> <tx7oC-5as-3@gated-at.bofh.it> <txDRw-8e8-23@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 18-04-17, 17:01, Sudeep Holla wrote:
> Understood. I would incline towards reusing regulators we that's what is

It can be just a regulator, but it can be anything else as well. That
entity may have its own clock/volt/current tunables, etc.

> changed behind the scene. Calling this operating performance point
> is misleading and doesn't align well with existing specs/features.

Yeah, but there are no voltage levels available here and that doesn't
fit as a regulator then.

> Understood. We have exactly same thing with SCPI but it controls both
> frequency and voltage referred as operating points. In general, this OPP
> terminology is used in SCPI/ACPI/SCMI specifications as both frequency
> and voltage control. I am bit worried that this binding might introduce
> confusions on the definitions. But it can be reworded/renamed easily if
> required.

Yeah, so far we have been looking at OPPs as freq-voltage pairs ONLY
and that is changing. I am not sure if it going in the wrong
direction really. Without frequency also it is an operating point for
the domain. Isn't it?

-- 
viresh

Thread

Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Sudeep Holla <sudeep.holla@arm.com> - 2017-04-12 19:00 +0200
  Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Viresh Kumar <viresh.kumar@linaro.org> - 2017-04-13 07:40 +0200
    Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Sudeep Holla <sudeep.holla@arm.com> - 2017-04-13 15:50 +0200
      Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Viresh Kumar <viresh.kumar@linaro.org> - 2017-04-17 07:30 +0200
        Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Sudeep Holla <sudeep.holla@arm.com> - 2017-04-18 18:10 +0200
          Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Viresh Kumar <viresh.kumar@linaro.org> - 2017-04-19 12:20 +0200
          Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Viresh Kumar <viresh.kumar@linaro.org> - 2017-04-19 13:50 +0200
            Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Sudeep Holla <sudeep.holla@arm.com> - 2017-04-19 16:00 +0200
              Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Viresh Kumar <viresh.kumar@linaro.org> - 2017-04-20 07:30 +0200
                Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for power-domains Ulf Hansson <ulf.hansson@linaro.org> - 2017-04-20 10:30 +0200
                Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Viresh Kumar <viresh.kumar@linaro.org> - 2017-04-20 11:40 +0200
                Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Sudeep Holla <sudeep.holla@arm.com> - 2017-04-20 12:00 +0200
                Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Sudeep Holla <sudeep.holla@arm.com> - 2017-04-20 11:50 +0200
                Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for  power-domains Viresh Kumar <viresh.kumar@linaro.org> - 2017-04-20 12:00 +0200
                Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for power-domains Kevin Hilman <khilman@baylibre.com> - 2017-04-24 21:10 +0200

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