ACPICA: Add support for _LPD and _PRP methods.

This patch currently only affects acpihelp and iASL which are not shipped
in the Linux kernel.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index a48d713e9599..34001a9fd098 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -586,6 +586,10 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
         {{"_LID", METHOD_0ARGS,
           METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
 
+        {{"_LPD", METHOD_0ARGS,
+          METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (1 Int(rev), n Pkg (2 Int) */
+        PACKAGE_INFO(ACPI_PTYPE2_REV_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0),
+
         {{"_MAT", METHOD_0ARGS,
           METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},