tree 547bc3b0d628dcc4a185b552a26fcb16aec6170e
parent 037accfa14b28ecf49d9060063929c4b4cde373f
author Ike Panhc <ike.pan@canonical.com> 1285918726 +0800
committer Matthew Garrett <mjg@redhat.com> 1287668209 -0400

ideapad: add ACPI helpers

There are two methods under VPC2004 which is used to access VDAT/VCMD of EC
register. Add helpers for read and write these two registers.

And add read_method_int for reading the return value from ACPI methods which
requires no parameter.

Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>