Merge branch 'acpi-dev-pm'

Merge branch 'acpi-dev-pm'

* acpi-dev-pm:
  ACPI / PM: Allow attach/detach routines to change device power states
  ACPI / PM: Introduce os_accessible flag for power_state
  ACPI / PM: Add check preventing transitioning to non-D0 state from D3.
  ACPI / PM: Fix build problem when CONFIG_ACPI or CONFIG_PM is not set
  ACPI / PM: Fix build problem related to acpi_target_system_state()
  ACPI / PM: Provide ACPI PM callback routines for subsystems
  ACPI / PM: Move device PM functions related to sleep states
  ACPI / PM: Provide device PM functions operating on struct acpi_device
  ACPI / PM: Split device wakeup management routines
  ACPI / PM: Move runtime remote wakeup setup routine to device_pm.c
  ACPI / PM: Move device power state selection routine to device_pm.c
  ACPI / PM: Move routines for adding/removing device wakeup notifiers
  ACPI / PM: Fix device PM kernedoc comments and #ifdefs