Messages in this thread | | | Date | Fri, 7 Mar 2014 11:04:59 +0800 | Subject | Re: [PATCH 2/4] power_supply: Introduce generic psy charging driver | From | Linus Walleij <> |
| |
On Fri, Feb 28, 2014 at 6:01 PM, Pavel Machek <pavel@ucw.cz> wrote: > On Thu 2014-02-27 21:08:01, Linus Walleij wrote: >> On Thu, Feb 20, 2014 at 6:53 AM, Jenny TC <jenny.tc@intel.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.
So consider the option that the interface is wrong.
Stating something like a sample period in system-specific jiffies instead of period time T is just weird. What control systems guy would understand this?
Yours, Linus Walleij
| |