1 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 3f968665899b..104eda758e7f 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -371,4 +371,14 @@ static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 
 #endif  /* !CONFIG_ACPI */
 
+#ifdef CONFIG_ACPI
+void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
+                               u32 pm1a_ctrl,  u32 pm1b_ctrl));
+
+acpi_status acpi_os_prepare_sleep(u8 sleep_state,
+                                  u32 pm1a_control, u32 pm1b_control);
+#else
+#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
+#endif
+
 #endif  /*_LINUX_ACPI_H*/