From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pavel Machek <pavel@ucw.cz>
Subject: Re: [PATCH 2/4] power_supply: Introduce generic psy charging driver
Date: Fri, 7 Mar 2014 21:09:50 +0100
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Hi!

> >> > +++ 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?
> >
> > Is it fine if I use msecs_to_jiffies(30000)?
> 
> Keep the
> #define DEF_CUR_VOLT_SAMPLE_PERIOD 30000
> 
> Then use msecs_to_jiffies(DEF_CUR_VOLT_SAMPLE_PERIOD)
> in the call site.

Actually, I do not think this is good suggestion. 30*HZ -- is pretty
clearly 30 seconds. 30000 may be 30sec or 30msec ... hard to tell.

If the constant is used in just one place, maybe you don't need the
define?
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html