ACPICA: ACPI 4.0: Interpreter support for IPMI.

Adds support for IPMI which is similar to SMBus and uses a bi-directional data buffer.
ACPICA BZ 773.

http://acpica.org/bugzilla/show_bug.cgi?id=773

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 6687be167f5f..d7b3b418fb45 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -120,12 +120,13 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
         }
 
         /*
-         * Exit now for SMBus address space, it has a non-linear address space
+         * Exit now for SMBus or IPMI address space, it has a non-linear address space
          * and the request cannot be directly validated
          */
-        if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) {
+        if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS ||
+            rgn_desc->region.space_id == ACPI_ADR_SPACE_IPMI) {
 
-                /* SMBus has a non-linear address space */
+                /* SMBus or IPMI has a non-linear address space */
 
                 return_ACPI_STATUS(AE_OK);
         }