linux-kernel - Re: [PATCH 12/13] cpufreq: Add cpufreq driver for Tegra124

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Message-ID: <CAKohpokGOtdY2SyJuN1QcVoDy2wsMcveiyr1e4cr0oe2j__h5g@mail.gmail.com>
Date:	Fri, 11 Jul 2014 14:44:07 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Peter De Schrijver <pdeschrijver@...dia.com>
Cc:	Tuomas Tynkkynen <ttynkkynen@...dia.com>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Prashant Gaikwad <pgaikwad@...dia.com>,
	Mike Turquette <mturquette@...aro.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH 12/13] cpufreq: Add cpufreq driver for Tegra124

On 11 July 2014 14:42, Peter De Schrijver <pdeschrijver@...dia.com> wrote:
> I don't think that's going to work? The voltage scaling is handled in hw.

Ahh..

> cpufreq-cpu0 seems to assume explicit sw control of the vdd_cpu regulator?

Its optional. If it fails to find a regulator, it doesn't depend or
play with it.
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