On Wed, Oct 13, 2010 at 08:16:20AM +0200, Sundar R IYER wrote: > >> This isn't *really* about saving power in the individual device; it's > >> more about stopping the device generating events that disrupt the rest > >> of the system. Suspending the device can be one way of doing that and > >> is useful if it can be done but is not really the immediate goal here. > >Runtime PM is _not_ a reliable way of preventing a device from > >generating events. It is meant for saving energy, nothing else. > >If that's what this is about, then the answer is simple: Don't use > >runtime PM to try to suppress events. > I think it is unfair to discriminate here about saving power and turning off > events. I believe putting the device into power save leads to, if device permits > preventing generating events is valid to hook up run time PM. This is the opposite way around to expectations - the expectation is that runtime power management will flow from the device becoming idle enough to turn off rather than the other way around. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
