[PATCH 3/4] pm: Handle HID0_SLEEP in the TLF_NAPPING hack.

[Paul Mackerras]

Scott Wood writes:

> The e300 core (and probably most other 6xx chips) can only come out of
> sleep mode with an interrupt.  However, interrupts are logically disabled
> by the power management layer.

On powerbooks it's typically a hard reset rather than an interrupt.
Is it possible to use a hard reset on e300-based systems?

Also, if you use an interrupt, presumably the cpu has to do something
to clear the interrupt condition.  What would that be?

Paul.