From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: generic-adc-battery volatge-to-percent formula Date: Mon, 15 Feb 2016 12:53:04 +0100 Message-ID: <20160215115304.GA5014@amd> References: <20160212085157.GA16326@amd> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:46991 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752931AbcBOLxH (ORCPT ); Mon, 15 Feb 2016 06:53:07 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Belisko Marek Cc: Sebastian Reichel , "Dr. H. Nikolaus Schaller" , Linux PM mailing list Hi! > > On Fri, Feb 12, 2016 at 9:51 AM, Pavel Machek wrote: > > Hi! > >> > >> some time ago I did post series which added some conversion table from > >> voltage to percent for charging and discharging states [1] in > >> twl4030_madc driver. This approach was not accepted and we still want > >> to have something like that in kernel. We re-think re-thinking > >> original idea and also get reference where Pavel point us to formula > >> which could be used for computing voltage-to-percent conversion [2] > >> > >> What about adding this formula as a default for the > >> voltage-to-percent-conversion to > >> the generic-adc-battery driver (and converting it to DT)? Would that > >> be a better solution than a table driven and twl4030 only driver? > > > > I'd say battery, yes. And maybe even better would be putting it into > > lib/ or seaparet driver, as it does not really depend on IIO? You just > > supply voltage, current and internal resistance, and it produces number... > Can we put this small helper to some common power header file which > can be then included > to driver which can use this formula. I think it's better way then > adding it to /lib as it won't be used > in whole kernel tree just in power. What do you think? Thanks. Sounds good to me. Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html