Re: Changes to power management in ehci-tegra

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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.
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