[PATCH] OMAP3+: SR: ensure pm-runtime callbacks can be invoked with IRQ disabled

Tony,

Nishanth Menon [off-list ref] writes:

SmartReflex should be disabled while entering low power mode due to
a) SmartReflex values are not defined for retention voltageFurther
b) with SmartReflex enabled, if CPU enters lower c-states, FSM will try
to bump the voltage to current OPP's voltage for which it has entered c-state;
hence SmartReflex needs to be disabled for MPU, CORE and IVA voltage
domains in idle path before enabling auto retention voltage achievement
on the device.

This should go in for v3.1 also.

I made some minor changelog edits and put in my for_3.0/pm-fixes-3
branch.

Kevin