diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h
index 6c1fb2d9f4d5de74fe5d5b7f4c0d328163788d52..9123d5a11627bc74405f2b9cf5abb0f9aab3aa34 100644
--- a/drivers/acpi/acpica/acconfig.h
+++ b/drivers/acpi/acpica/acconfig.h
@@ -183,7 +183,7 @@
 
 /* Operation regions */
 
-#define ACPI_NUM_PREDEFINED_REGIONS     8
+#define ACPI_NUM_PREDEFINED_REGIONS     9
 #define ACPI_USER_REGION_BEGIN          0x80
 
 /* Maximum space_ids for Operation Regions */
diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h
index 067f967eb389cf720b2ee7d9a25b840ca3477443..4940249f252427ef093e2fb93f2d9497c4f07ca6 100644
--- a/drivers/acpi/acpica/amlcode.h
+++ b/drivers/acpi/acpica/amlcode.h
@@ -404,6 +404,7 @@ typedef enum {
 	REGION_SMBUS,
 	REGION_CMOS,
 	REGION_PCI_BAR,
+	REGION_IPMI,
 	REGION_DATA_TABLE,	/* Internal use only */
 	REGION_FIXED_HW = 0x7F
 } AML_REGION_TYPES;
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index ed7a33c67fbe755ce8cd22ec09ac19ad6d0206d9..9e33b62619391d6cd7ec578985479d7702403bb6 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -359,6 +359,7 @@ const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
 	"SMBus",
 	"SystemCMOS",
 	"PCIBARTarget",
+	"IPMI",
 	"DataTable"
 };