From: Viresh Kumar <viresh.kumar@linaro.org>
To: Stephen Boyd <sboyd@codeaurora.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
Kevin Hilman <khilman@kernel.org>,
Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
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>
Subject: Re: [RFC V7 2/2] OPP: Allow "opp-hz" and "opp-microvolt" to contain magic values
Date: Thu, 2 Nov 2017 14:30:33 +0530 [thread overview]
Message-ID: <20171102090033.GZ4240@vireshk-i7> (raw)
In-Reply-To: <20171102071533.GM30645@codeaurora.org>
On 02-11-17, 00:15, Stephen Boyd wrote:
> Sorry I'm not following. We're going to need to have platform
> specific code that understands platform specific bindings that
> aren't shoved into the generic OPP bindings.
At least I am not targeting any platform specific binding right now.
The way I see this to work is:
- We will reuse earlier bindings and allow opp-hz and opp-microvolt to
contain special values (this patch).
- Platform specific DT entries will put corner numbers in opp-hz (or
opp-microvolt) fields.
- Some platform specific driver (in OPP or genpd) will be used to
convert OPP into a performance state (corner) value. Now that can
simply read opp-hz (or opp-microvolt) and return its value.
- OPP core will request for a performance state (code is already
merged for that).
And so there is no platform specific binding here. Do you want to do
this differently ?
--
viresh
next prev parent reply other threads:[~2017-11-02 9:00 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-31 12:47 [RFC V7 0/2] OPP: Allow OPP table to be used for power-domains Viresh Kumar
2017-10-31 12:47 ` [RFC V7 1/2] " Viresh Kumar
2017-11-28 15:50 ` Ulf Hansson
[not found] ` <2b244ea0a09deaf50237fb8b7578273a8284499e.1509453284.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2017-11-29 16:46 ` Rob Herring
2017-11-30 4:48 ` Viresh Kumar
[not found] ` <cover.1509453284.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2017-10-31 12:47 ` [RFC V7 2/2] OPP: Allow "opp-hz" and "opp-microvolt" to contain magic values Viresh Kumar
2017-10-31 16:02 ` Rob Herring
2017-11-01 2:17 ` Viresh Kumar
[not found] ` <CAKohpokvQD4Z6YY6MRG8c+hnsS=Z52X4XhyTgC5FTgf7VuaNmw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-11-01 20:39 ` Rob Herring
[not found] ` <CAL_JsqK-qtAaM_Ou5NtxcWR3F_q=8rMPJUm-VqGtKhbtWe5SAQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-11-01 21:43 ` Stephen Boyd
2017-11-02 4:51 ` Viresh Kumar
2017-11-02 7:15 ` Stephen Boyd
2017-11-02 9:00 ` Viresh Kumar [this message]
2017-11-28 16:38 ` Ulf Hansson
2017-11-30 0:50 ` Stephen Boyd
[not found] ` <20171130005029.GC19419-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-11-30 6:59 ` Viresh Kumar
2017-12-14 7:30 ` Viresh Kumar
2017-12-26 20:23 ` Rob Herring
[not found] ` <CAL_Jsq+ntPMiSacpsx7M7VwSXsx+fRbHpX-KFNVpDj+bYdNCiQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-12-27 4:45 ` Viresh Kumar
2017-12-27 21:36 ` Rob Herring
[not found] ` <CAL_JsqJA-cCOLRwHC1ZegHEt9v7pMoxY6qXF7Taq3k19bU-k3w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-12-28 4:32 ` Viresh Kumar
2017-11-02 4:49 ` Viresh Kumar
2017-11-28 16:14 ` Ulf Hansson
2017-11-29 4:14 ` [RFC V7 0/2] OPP: Allow OPP table to be used for power-domains Viresh Kumar
2017-11-29 16:37 ` Rob Herring
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