2 files changed, 16 insertions, 0 deletions

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 292af0c0b896..0dd03f226a68 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -147,6 +147,8 @@ acpi_status acpi_install_interface(acpi_string interface_name);
 
 acpi_status acpi_remove_interface(acpi_string interface_name);
 
+acpi_status acpi_update_interfaces(u8 action);
+
 u32
 acpi_check_address_range(acpi_adr_space_type space_id,
                          acpi_physical_address address,
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 787a977ece9d..eae55fb74905 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -1152,4 +1152,18 @@ struct acpi_memory_list {
 #define ACPI_OSI_WIN_7                  0x0B
 #define ACPI_OSI_WIN_8                  0x0C
 
+/* _OSI update actions */
+
+#define ACPI_VENDOR_STRINGS                 0x01
+#define ACPI_FEATURE_STRINGS                0x02
+#define ACPI_ENABLE_INTERFACES              0x00
+#define ACPI_DISABLE_INTERFACES             0x04
+
+#define ACPI_DISABLE_ALL_VENDOR_STRINGS     (ACPI_DISABLE_INTERFACES | ACPI_VENDOR_STRINGS)
+#define ACPI_DISABLE_ALL_FEATURE_STRINGS    (ACPI_DISABLE_INTERFACES | ACPI_FEATURE_STRINGS)
+#define ACPI_DISABLE_ALL_STRINGS            (ACPI_DISABLE_INTERFACES | ACPI_VENDOR_STRINGS | ACPI_FEATURE_STRINGS)
+#define ACPI_ENABLE_ALL_VENDOR_STRINGS      (ACPI_ENABLE_INTERFACES | ACPI_VENDOR_STRINGS)
+#define ACPI_ENABLE_ALL_FEATURE_STRINGS     (ACPI_ENABLE_INTERFACES | ACPI_FEATURE_STRINGS)
+#define ACPI_ENABLE_ALL_STRINGS             (ACPI_ENABLE_INTERFACES | ACPI_VENDOR_STRINGS | ACPI_FEATURE_STRINGS)
+
 #endif                          /* __ACTYPES_H__ */