[PATCH v2] Add cpuidle support for at91

[Wolfram Sang]

> In other words, only state "wait-for-interrupt *and* RAM self refresh"
> brings some more power saving. Indeed, cpu_do_idle() that correspond to
> the "WFI" state was already the way of dealing with idle cpu, even
> without your patch. Am I correct ?

Yes, but it has a higher exit latency. Those data is provided to the cpuidle
framework, so it can decide which state to use.

I wonder if other people can confirm a similar amount of power savings? I am
trying to implement the RAM self refresh for i.MX and don't see much
improvment. I guess I still do something wrong...

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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