+/**
+ * acpi_pm_disable_gpes - Disable the GPEs.
+ */
+static int acpi_pm_disable_gpes(void)
+{
+ acpi_hw_disable_all_gpes();
+ return 0;
+}
+
+/**
+ * __acpi_pm_prepare - Prepare the platform to enter the target state.
+ *
+ * If necessary, set the firmware waking vector and do arch-specific
+ * nastiness to get the wakeup code to the waking vector.
+ */
+static int __acpi_pm_prepare(void)
+{
+ int error = acpi_sleep_prepare(acpi_target_sleep_state);
+
+ if (error)
+ acpi_target_sleep_state = ACPI_STATE_S0;
+ return error;
+}
+
+/**
+ * acpi_pm_prepare - Prepare the platform to enter the target sleep
+ * state and disable the GPEs.
+ */
+static int acpi_pm_prepare(void)
+{
+ int error = __acpi_pm_prepare();
+
+ if (!error)
+ acpi_hw_disable_all_gpes();
+ return error;
+}
+
+/**
+ * acpi_pm_finish - Instruct the platform to leave a sleep state.
+ *
+ * This is called after we wake back up (or if entering the sleep state
+ * failed).
+ */
+static void acpi_pm_finish(void)
+{
+ u32 acpi_state = acpi_target_sleep_state;
+
+ if (acpi_state == ACPI_STATE_S0)
+ return;
+
+ printk(KERN_INFO PREFIX "Waking up from system sleep state S%d\n",
+ acpi_state);
+ acpi_disable_wakeup_device(acpi_state);
+ acpi_leave_sleep_state(acpi_state);
+
+ /* reset firmware waking vector */
+ acpi_set_firmware_waking_vector((acpi_physical_address) 0);
+
+ acpi_target_sleep_state = ACPI_STATE_S0;
+}
+
+/**
+ * acpi_pm_end - Finish up suspend sequence.
+ */
+static void acpi_pm_end(void)
+{
+ /*
+ * This is necessary in case acpi_pm_finish() is not called during a
+ * failing transition to a sleep state.
+ */
+ acpi_target_sleep_state = ACPI_STATE_S0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+#ifdef CONFIG_SUSPEND