linux-kernel - Re: [PATCH 2/4] power_supply: Introduce generic psy charging driver

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Message-ID: <20140228100114.GA13189@amd.pavel.ucw.cz>
Date:	Fri, 28 Feb 2014 11:01:15 +0100
From:	Pavel Machek <pavel@....cz>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Jenny TC <jenny.tc@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	Anton Vorontsov <cbouatmailru@...il.com>,
	Anton Vorontsov <anton.vorontsov@...aro.org>,
	Kim Milo <Milo.Kim@...com>, Lee Jones <lee.jones@...aro.org>,
	Jingoo Han <jg1.han@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Sachin Kamat <sachin.kamat@...aro.org>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Pali Rohár <pali.rohar@...il.com>,
	Rhyland Klein <rklein@...dia.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	David Woodhouse <dwmw2@...radead.org>,
	Tony Lindgren <tony@...mide.com>,
	Russell King <linux@....linux.org.uk>,
	Sebastian Reichel <sre@...g0.de>,
	Aaro Koskinen <aaro.koskinen@....fi>,
	Pallala Ramakrishna <ramakrishna.pallala@...el.com>,
	Ивайло Димитров 
	<freemangordon@....bg>, Linux-OMAP <linux-omap@...r.kernel.org>
Subject: Re: [PATCH 2/4] power_supply: Introduce generic psy charging driver

On Thu 2014-02-27 21:08:01, Linus Walleij wrote:
> On Thu, Feb 20, 2014 at 6:53 AM, Jenny TC <jenny.tc@...el.com> wrote:
> 
> > +++ b/include/linux/power/power_supply_charger.h
> 
> > +#define MAX_CUR_VOLT_SAMPLES 3
> > +#define DEF_CUR_VOLT_SAMPLE_JIFF (30*HZ)
> 
> Why are things defined in Jiffies like this insead of seconds, milliseconds
> etc? This will vary with the current operating frequency of the system,
> why should physical measurements do that?

It is actually ok. The define is relative to jiffies, and that's what
interface expects.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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