On 04/18/2012 02:47 PM, Alan Stern wrote: ... > Are you sure the controllers aren't getting suspending under the > current driver? It seems like they ought to be -- otherwise there > would be no point in defining power_down_on_bus_suspend. Ah. The ports are getting suspended (when nothing is plugged in), and tegra_ehci_bus_suspend() is returning 0. However, as soon as any port is suspended, it resumes immediately. I guess that's why plugging something in works even after the controller is suspended; it keeps waking up and is essentially polling for any plugged-in device. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html