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Date: Mon, 23 May 2016 11:24:51 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Steve Muckle <steve.muckle@linaro.org>,
 Daniel Lezcano <daniel.lezcano@linaro.org>,
 Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>,
 "Rafael J. Wysocki" <rjw@rjwysocki.net>,
 Viresh Kumar <viresh.kumar@linaro.org>,
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 Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
 "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>,
 shreyas@linux.vnet.ibm.com, akshay.adiga@linux.vnet.ibm.com,
 linuxppc-dev@ozlabs.org
Subject: Re: [RFC PATCH] Increase in idle power with schedutil
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On Mon, May 23, 2016 at 10:00:04AM +0100, Lorenzo Pieralisi wrote:
> It is also related to static leakage power that depends on the operating
> voltage (ie higher operating frequencies require higher voltage) so in a
> way scaling frequency before going idle may not be effective if voltage
> does not scale too in turn.

Sure, but the platform drivers 'know' all this and can make the right
decision.