- * Suspend-to-disk can be handled in several ways. The greatest
- * distinction is who writes memory to disk - the firmware or the OS.
- * If the firmware does it, we assume that it also handles suspending
- * the system.
- * If the OS does it, then we have three options for putting the system
- * to sleep - using the platform driver (e.g. ACPI or other PM registers),
- * powering off the system or rebooting the system (for testing).
+ * Suspend-to-disk can be handled in several ways. We have a few options
+ * for putting the system to sleep - using the platform driver (e.g. ACPI
+ * or other pm_ops), powering off the system or rebooting the system
+ * (for testing) as well as the two test modes.