Re: [RFC][USB] powerpc: Workaround for the PPC440EPX USBH_23 errata

On Fri, 29 Aug 2008, Benjamin Herrenschmidt wrote:

I suppose some embedded platforms don't use CONFIG_PM, is this still a
requirement for autosuspend ? Or do that happen always on an empty port
nowadays ?

ohci-hcd doesn't automatically suspend the root hub if CONFIG_PM isn't
set.  However it isn't necessary to set CONFIG_SLEEP,
CONFIG_HIBERNATION, or CONFIG_USB_SUSPEND.

Alan Stern