ACPICA: Implemented full argument resolution support for the BankValue argument to BankField

Previously, only constants were supported, now any TermArg may
be used.

http://www.acpica.org/bugzilla/show_bug.cgi?id=387
http://www.acpica.org/bugzilla/show_bug.cgi?id=393

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

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/acpi/executer/exprep.c b/drivers/acpi/executer/exprep.c
index efe5d4b461a4..6eb45bf355f1 100644
--- a/drivers/acpi/executer/exprep.c
+++ b/drivers/acpi/executer/exprep.c
@@ -412,6 +412,7 @@ acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc,
 acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
 {
         union acpi_operand_object *obj_desc;
+        union acpi_operand_object *second_desc = NULL;
         u32 type;
         acpi_status status;
 
@@ -494,6 +495,20 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
                                   obj_desc->field.access_byte_width,
                                   obj_desc->bank_field.region_obj,
                                   obj_desc->bank_field.bank_obj));
+
+                /*
+                 * Remember location in AML stream of the field unit
+                 * opcode and operands -- since the bank_value
+                 * operands must be evaluated.
+                 */
+                second_desc = obj_desc->common.next_object;
+                second_desc->extra.aml_start =
+                    ((union acpi_parse_object *)(info->data_register_node))->
+                    named.data;
+                second_desc->extra.aml_length =
+                    ((union acpi_parse_object *)(info->data_register_node))->
+                    named.length;
+
                 break;
 
         case ACPI_TYPE_LOCAL_INDEX_FIELD: