[PATCH RFC v3 4/6] arm64: add PSCI CPU_SUSPEND based cpu_suspend support

[Sebastian Capella]

Quoting Lorenzo Pieralisi (2014-05-06 11:04:41)
> This patch implements the cpu_suspend cpu operations method through
> the PSCI CPU_SUSPEND API. The PSCI implementation translates the idle state
> index passed by the cpu_suspend core call into a valid PSCI state according to
> the PSCI states initialized at boot by the PSCI suspend backend.
> 
> Entry point is set to cpu_resume physical address, that represents the
> default kernel execution address following a CPU reset.
> 
> Idle state indices missing a DT node description are initialized to power
> state standby WFI so that if called by the idle driver they provide the
> default behaviour.
> 
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>

Reviewed-by: Sebastian Capella <sebastian.capella at linaro.org>

Thanks!

Sebastian