diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 765fd1c..2e90410 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -39,6 +39,8 @@
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 
+#include "internal.h"
+
 #define _COMPONENT		ACPI_BUS_COMPONENT
 ACPI_MODULE_NAME("bus");
 
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
new file mode 100644
index 0000000..4aee4a2
--- /dev/null
+++ b/drivers/acpi/internal.h
@@ -0,0 +1,24 @@
+/* For use by Linux/ACPI infrastructure, not drivers */
+
+/* --------------------------------------------------------------------------
+                                  Power Resource
+   -------------------------------------------------------------------------- */
+
+int acpi_device_sleep_wake(struct acpi_device *dev,
+                           int enable, int sleep_state, int dev_state);
+int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state);
+int acpi_disable_wakeup_device_power(struct acpi_device *dev);
+int acpi_power_get_inferred_state(struct acpi_device *device);
+int acpi_power_transition(struct acpi_device *device, int state);
+extern int acpi_power_nocheck;
+
+/* --------------------------------------------------------------------------
+                                  Embedded Controller
+   -------------------------------------------------------------------------- */
+int acpi_ec_ecdt_probe(void);
+int acpi_boot_ec_enable(void);
+
+/*--------------------------------------------------------------------------
+                                  Suspend/Resume
+  -------------------------------------------------------------------------- */
+extern int acpi_sleep_init(void);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index c54d7b6..2f04cd1 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -11,6 +11,8 @@
 
 #include <acpi/acpi_drivers.h>
 
+#include "internal.h"
+
 #define _COMPONENT		ACPI_BUS_COMPONENT
 ACPI_MODULE_NAME("scan");
 #define STRUCT_TO_INT(s)	(*((int*)&s))
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 5192666..0f86cf7 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -21,6 +21,8 @@
 
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
+
+#include "internal.h"
 #include "sleep.h"
 
 u8 sleep_states[ACPI_S_STATE_COUNT];
diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c
index 2d34806..3f29fd5 100644
--- a/drivers/acpi/wakeup.c
+++ b/drivers/acpi/wakeup.c
@@ -8,6 +8,8 @@
 #include <acpi/acpi_drivers.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
+
+#include "internal.h"
 #include "sleep.h"
 
 #define _COMPONENT		ACPI_SYSTEM_COMPONENT