Merge branches 'pm-cpuidle' and 'pm-sleep'

Merge branches 'pm-cpuidle' and 'pm-sleep'

* pm-cpuidle:
  PM / Domains: Add genpd governor for CPUs
  cpuidle: Export the next timer expiration for CPUs
  PM / Domains: Add support for CPU devices to genpd
  PM / Domains: Add generic data pointer to struct genpd_power_state
  cpuidle: exynos: Unify target residency for AFTR and coupled AFTR states

* pm-sleep:
  PM / core: Propagate dev->power.wakeup_path when no callbacks
  PM / core: Introduce dpm_async_fn() helper
  PM / core: fix kerneldoc comment for device_pm_wait_for_dev()
  PM / core: fix kerneldoc comment for dpm_watchdog_handler()
  PM / sleep: Measure the time of filesystems syncing
  PM / sleep: Refactor filesystems sync to reduce duplication
  PM / wakeup: Use pm_pr_dbg() instead of pr_debug()