a0f30f592d
Add a driver for the ACPI-based EC event interface found on the OLPC XO-1.5 laptop. This enables notification of battery/AC power events, and enables various devices to be used as wakeup sources through regular ACPI mechanisms. This driver can't be built as a module, because some drivers need to know at boot-time if SCI-based functionality is available via olpc_ec_wakeup_available(). Signed-off-by: Daniel Drake <dsd@laptop.org> Link: http://lkml.kernel.org/r/1309019658-1712-12-git-send-email-dsd@laptop.org Acked-by: Andres Salomon <dilinger@queued.net> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>