Re: [RFD] Automatic suspend

Mark Brown
2009-02-17T13:58:34Z

On Mon, Feb 16, 2009 at 11:23:30PM +0000, Matthew Garrett wrote:

> Arve said that the power state was equivalent in idle and suspend, but
> that they preferred suspend because it stopped any periodic timers. I'd
> be more interested in making sure that unnecessary timers aren't running
> than focusing on automatically entering system-wide suspend - Nokia have
> been managing this since 2005 with good results.

Definitely. Even in the embedded case there is hardware which takes a
relatively long time to fully power down and resume without winning an
enormous amount on the power front (analogue stuff is a common culprit
here, it can take a noticable amount of time to bring it up cleanly).