[*] Power Management support
[ ]   Legacy Power Management API (DEPRECATED)
[ ]   Power Management Debug Support
[ ]   Driver model /sys/devices/.../power/state files (DEPRECATED)
[ ]   Software Suspend (Hibernation)
    ACPI (Advanced Configuration and Power Interface) Support  --->
<M> APM (Advanced Power Management) BIOS support  --->
    CPU Frequency scaling  --->