Messages in this thread | | | Date | Thu, 6 May 2010 12:06:33 -0400 (EDT) | From | Alan Stern <> | Subject | RE: [linux-pm] [PATCH v2] [RFC] ehci: Disable wake on overcurrent (WKOC_E) and disconnect (WKDISC_E) |
| |
On Thu, 6 May 2010, Du, Alek wrote:
> Hi Alan, > > >With this patch, _none_ of the wakeup bits are enabled. That should > >work, right? > > > I guess so, but if no wakeup bits set, how to handle remote wakeup case? Seems you removed remote wakeup case?
The wakeup bits get set later, in ehci_set_wakeup_flags().
The point is that the wakeup bits take effect only when the controller leaves D0. But ehci_bus_suspend() is called when the root hub is suspended, which happens first. So at that time the wakeup bits aren't needed.
Alan Stern
| |