From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Menon Subject: Re: [PATCH V4 1/3] OPP: Redefine bindings to overcome shortcomings Date: Wed, 13 May 2015 10:43:40 -0500 Message-ID: <5553712C.9090603@ti.com> References: <20150507221842.GW22845@sirena.org.uk> <555000B6.2010107@ti.com> <20150512052033.GC32300@linux> <20150512190134.16410.89041@quantum> <5552510B.9010306@ti.com> <20150512194134.GC3066@sirena.org.uk> <55525B29.2080307@ti.com> <20150513115422.GQ3066@sirena.org.uk> <20150513150739.GW2761@sirena.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20150513150739.GW2761@sirena.org.uk> Sender: linux-pm-owner@vger.kernel.org To: Mark Brown Cc: Michael Turquette , Viresh Kumar , Stephen Boyd , Rafael Wysocki , Rob Herring , Arnd Bergmann , Linaro Kernel Mailman List , "linux-pm@vger.kernel.org" , Grant Likely , "olof@lixom.net" , Sudeep Holla , "devicetree@vger.kernel.org" , Viswanath Puttagunta , Lucas Stach , Thomas Petazzoni , "linux-arm-kernel@lists.infradead.org" , Thomas Abraham , Abhilash Kesavan , Kevin Hilman List-Id: devicetree@vger.kernel.org On 05/13/2015 10:07 AM, Mark Brown wrote: > On Wed, May 13, 2015 at 09:24:57AM -0500, Nishanth Menon wrote: > >> - opp-microamp: The maximum current drawn by the device in microamperes >> considering system specific parameters (such as transients, process, >> aging, etc.) >> as necessary, at an ambient temperature of 25C. This may be used to set >> the most efficient regulator operating mode. > > Why specify the temperature? That 25C is going to be terribly > inefficient for my snowplow engine control system (or whatever). > :) was trying to put a constraint since we do know that leakage changes over temperature profile and the fact that operating temperature ranges vary depending on device and market. rephrased again below: - opp-microamp: The maximum current drawn by the device in microamperes considering system specific parameters (such as transients, process, aging, maximum operating temperature range etc.) as necessary. This may be used to set the most efficient regulator operating mode. -- Regards, Nishanth Menon