From: Viresh Kumar <viresh.kumar@linaro.org>
To: Sudeep Holla <sudeep.holla@arm.com>
Cc: Rafael Wysocki <rjw@rjwysocki.net>,
ulf.hansson@linaro.org, Kevin Hilman <khilman@linaro.org>,
Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
Stephen Boyd <sboyd@codeaurora.org>,
linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org,
Vincent Guittot <vincent.guittot@linaro.org>,
robh+dt@kernel.org, lina.iyer@linaro.org, rnayak@codeaurora.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for power-domains
Date: Wed, 19 Apr 2017 17:17:40 +0530 [thread overview]
Message-ID: <20170419114740.GD5436@vireshk-i7> (raw)
In-Reply-To: <95aa4b97-4e1a-13bb-f4d8-982b778012ba@arm.com>
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
next prev parent reply other threads:[~2017-04-19 11:47 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1490001099.git.viresh.kumar@linaro.org>
2017-03-20 9:32 ` [PATCH V4 1/9] PM / OPP: Allow OPP table to be used for power-domains Viresh Kumar
2017-03-24 15:44 ` Rob Herring
2017-04-10 9:25 ` Viresh Kumar
2017-04-10 9:50 ` Viresh Kumar
2017-04-12 16:49 ` Sudeep Holla
[not found] ` <0a7146f9-72f1-317c-3aab-770a72462968-5wv7dgnIgG8@public.gmane.org>
2017-04-13 5:37 ` Viresh Kumar
2017-04-13 13:42 ` Sudeep Holla
[not found] ` <3adbef6a-7b43-528f-e88f-c2121d30a5d3-5wv7dgnIgG8@public.gmane.org>
2017-04-17 5:27 ` Viresh Kumar
2017-04-18 16:01 ` Sudeep Holla
[not found] ` <95aa4b97-4e1a-13bb-f4d8-982b778012ba-5wv7dgnIgG8@public.gmane.org>
2017-04-19 10:11 ` Viresh Kumar
2017-04-26 4:32 ` Rajendra Nayak
2017-04-26 13:55 ` Mark Brown
2017-04-27 9:42 ` Sudeep Holla
2017-04-27 10:50 ` Rajendra Nayak
2017-04-28 5:00 ` Viresh Kumar
2017-04-28 9:44 ` Sudeep Holla
[not found] ` <b3f5b62c-9423-98e4-d366-78186ab02fb9-5wv7dgnIgG8@public.gmane.org>
2017-04-28 11:12 ` Viresh Kumar
2017-04-30 12:49 ` Mark Brown
2017-05-03 11:21 ` Sudeep Holla
2017-05-14 9:55 ` Mark Brown
2017-04-19 11:47 ` Viresh Kumar [this message]
2017-04-19 13:58 ` Sudeep Holla
[not found] ` <9dee7c0d-e5f4-9fcd-3c92-bf7ec9d43a3b-5wv7dgnIgG8@public.gmane.org>
2017-04-20 5:25 ` Viresh Kumar
2017-04-20 8:23 ` Ulf Hansson
2017-04-20 9:33 ` Viresh Kumar
2017-04-20 9:51 ` Sudeep Holla
2017-04-20 9:43 ` Sudeep Holla
2017-04-20 9:52 ` Viresh Kumar
2017-04-23 22:07 ` Kevin Hilman
[not found] ` <e772e67a5445319bb8e0f312846ace666adc097f.1490001099.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2017-04-12 17:05 ` Sudeep Holla
2017-04-13 5:50 ` Viresh Kumar
2017-04-13 13:43 ` Sudeep Holla
2017-04-17 5:33 ` Viresh Kumar
2017-04-18 16:03 ` Sudeep Holla
2017-04-19 10:12 ` Viresh Kumar
2017-03-20 9:32 ` [PATCH V4 2/9] PM / Domains: Use OPP tables " Viresh Kumar
[not found] ` <5619ac7777689f282f8aafabbde22d71b46a979b.1490001099.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2017-04-12 16:58 ` Sudeep Holla
2017-04-13 6:03 ` Viresh Kumar
2017-04-13 13:45 ` Sudeep Holla
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