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

[Lennert Buytenhek]

On Sat, Sep 26, 2009 at 09:53:55PM +0200, Mikael Pettersson wrote:

> The power button on the n2100 apparently does not generate
> an interrupt when pressed, so the board support code sets
> up a periodic timer to sample it.
> 
> This timer operates at 10 Hz, which makes it the third worst
> cause of timeouts in my kernel when idle.
> 
> 10 Hz seems excessive, so this patch adds a compile-time option
> to reduce the polling frequency to 1 Hz.

How much power does this actually save?