"Rafael J. Wysocki" <rjw@xxxxxxx> writes: > From: Rafael J. Wysocki <rjw@xxxxxxx> > > Make generic PM domains support system-wide power transitions > (system suspend and hibernation). Add suspend, resume, freeze, thaw, > poweroff and restore callbacks to be associated with struct > generic_pm_domain objects and make pm_genpd_init() use them as > appropriate. > > The new callbacks do nothing for devices belonging to power domains > that were powered down at run time (before the transition). Thinking about this some more, how is a driver supposed to reconfigure wakeups during suspend if it has already been runtime suspended? For example, assume a device where device_may_wakeup() == false. This means wakeups during *suspend* are disabled, but wakeups wakeups are assumed to enabled when it is runtime suspended. So now, assume this device is RPM_SUSPENDED, it has wakeups *enabled*, and then system suspend comes along. With this current patch, the driver will never receive any callbacks, so it can never disable its wakeups. Am I missing something? Kevin _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
