Alan Cox <a...@lxorguk.ukuu.org.uk> writes:

> - Given a non forced (that is 'idle down') transition to a suspend level
>   we can implement a 'suspend as idle' on many embedded platforms in a
>   manner which is not racy at kernel level. Apparently implemented
>   already on ARM

Just to confirm, yes, it is already implemeted on ARM, and in mainline
for the TI OMAP3 (ARM Cortex-A8) and in commercial products (Nokia
N900, Moto Droid, Palm Pre, Archos, etc.)  For the OMAP the deepest
C-state is actually a fully powered-down ARM core.

While the Droid uses 'suspend as idle' in addition to opportunistic
suspend, the N900 *never* suspends in the traditional sense, it is
entirely idle based.

Kevin
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