[PATCH 2/2] n2100: reduce power button timer to 1 Hz

[Aaro Koskinen]

Hello,

Mikael Pettersson wrote:
> Aaro Koskinen writes:
>  > Mikael Pettersson wrote:
>  > > 10 Hz seems excessive, so this patch adds a compile-time option
>  > > to reduce the polling frequency to 1 Hz.
>  > > 
>  > > (This change could possibly be handled via a kernel boot option,
>  > > or even be made unconditional, but I opted for a compile-time
>  > > option for now.)
>  > 
>  > I don't think there is need to have an option for this. With HZ also
>  > round_jiffies() could be used, it doesn't need to be exact.
> 
> I don't quite follow you here. Can you elaborate?

round_jiffies() rounds the time up or down to a full second. It's useful for
timers that expire every N seconds. This way timeouts can be grouped, so there
is less wakeups.

A.