[POWER DOMAIN suspend callbacks] Observation.

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Rafael, Kevin,

On latest kernel( V3.1-rc1+), the subsystem(driver) suspend
callbacks are not getting called because power domain callbcaks
are populated.

And as per commit 4d27e9dc{PM: Make power domain callbacks take
precedence over subsystem ones}, it's expected bahavior.

Who is suppose to call the driver suspend callback?
Some drivers/subsystem would have state machine which needs to
be suspended.

Is the power domain suspend callback, suppose to take care of
it ? If yes, then that seems to be missing for OMAP.

Thanks for clarification.

Regards
Santosh
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