On Tuesday 18 August 2009, Zhang Rui wrote:> On Mon, 2009-08-17 at 08:15 +0800, Rafael J. Wysocki wrote:> > On Wednesday 12 August 2009, Rafael J. Wysocki wrote:> > > Hi,> > > > > > The following patches introduce a mechanism allowing us to execute device> > > drivers' suspend and resume callbacks asynchronously during system sleep> > > transitions, such as suspend to RAM. The idea is explained in the [1/1] patch> > > message.> > > > Changes:> > > > * Added [1/7] that fixes kerneldoc comments in drivers/base/power/main.c> > (this is a 2.6.32 candidate).> > > > * Added [2/7] adding a framework for representing PM link (idea described> > in the patch message).> > > > * [3/7] is the async resume patch (idea described in the patch message).> > > > * [4/7] is the async suspend patch.> > > > * [5/7] - [7/7] set async_suspend for devices in a few selected subsystems.> > > > The patches have been tested on HP nx6325.> > > I tried this patch set and it does work. :)> But unfortunately it doesn't save too much time.> > I still think that the child device should inherit its parent's> async_suspend flag to do the asynchronous resume more efficiently.> > or at least we should provide such an interface> in drivers/base/power/common.c, so that device can tell the device core> to inherit this flag if there is no off-tree dependency. Well, I'd prefer to identify all of the off-tree dependencies that have to betaken into account and handle all devices asynchronously. Thanks,Rafael_______________________________________________linux-pm mailing listlinux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx://lists.linux-foundation.org/mailman/listinfo/linux-pm
