On Thu, 27 May 2010, Rafael J. Wysocki wrote: > On Wednesday 26 May 2010, Alan Stern wrote: > > On Wed, 26 May 2010, Rafael J. Wysocki wrote: > > > > > At this point, yes. At least drivers should leave the devices active and > > > let the core power take care of them. > > > > What if the driver is unbound while the device is suspended? It seems > > pretty awkward. The release method would have to do: > > > > pm_runtime_get_sync(dev); > > pm_runtime_disable(dev); > > pm_runtime_set_suspended(dev); > > pm_runtime_put_noidle(dev); > > That's correct, but as I said I don't think it's safe to do anything else in > general at this point (please remember that it must cooperate with system > suspend/resume). > > This still is a work in progress, though, so if you have an idea how to improve > it, I surely won't object. :-) I'm just trying to determine what drivers are currently expected to do. So when a device isn't bound, it should be disabled for runtime PM and in an active state (D0), but its runtime status should be RPM_SUSPENDED -- the same as the default values when a new device structure is initialized. Right? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
