On Wednesday 12 August 2009, Alan Stern wrote: > On Wed, 12 Aug 2009, Rafael J. Wysocki wrote: > > > That looks quite complicated at first sight, but asynchronous resume with > > completions can be done in a relatively simple patch. I've got one, so > > tomorow I'll post it for further discussion. > > Okay. I would think that managing the threads would account for most > of the complexity in either implementation, but I'll wait to see how > your approach works out. > > > Thanks, > > Rafael > > > > > > PS > > Did you have a chance to look at rev. 15 of the runtime PM patch > > (http://patchwork.kernel.org/patch/40306/)? > > Yes, sorry for not getting back to you. It looks okay. > > The one thing I'm not sure of is the pm_runtime_put_noidle calls in > driver_probe_device and __device_release_driver. It seems that we > should always call pm_runtime_put regardless of whether the probe > succeeds or not. Did you mean pm_runtime_put_sync()? > For example, the USB stack is set up to suspend devices that don't have > a driver (this is handled at the bus subsystem level). But if probing > failed, there wouldn't be any idle callback and so the suspend wouldn't > take place. OK, I'll make this change. Thanks, Rafael _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
