From 8d6666563797923e566cc56e7bd8861fa955d0c6 Mon Sep 17 00:00:00 2001
From: david <david_wu@quantatw.com>
Date: Fri, 18 Dec 2015 20:11:08 +0800
Subject: [PATCH] google/lars: Enable ALS connected to EC

Lars has an ambient light sensor connected to the EC which
is presented to the OS as a standard ACPI0008 device.

BUG=none
BRANCH=none
TEST=emerge-lars coreboot

Change-Id: I406b634176dac3f4cf1894e6b386af3306d11ffa
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 37d96458a11c33899f210cc04d3bdab07ec18746
Original-Change-Id: I017aeed1a8684676557e483ffa895dc4bb125d26
Original-Signed-off-by: David Wu <David_Wu@quantatw.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/319364
Original-Commit-Ready: David Wu <david_wu@quantatw.com>
Original-Tested-by: David Wu <david_wu@quantatw.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/12990
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
---
 src/mainboard/google/lars/acpi/ec.asl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mainboard/google/lars/acpi/ec.asl b/src/mainboard/google/lars/acpi/ec.asl
index e4a35c8b42..b012827e7a 100644
--- a/src/mainboard/google/lars/acpi/ec.asl
+++ b/src/mainboard/google/lars/acpi/ec.asl
@@ -17,6 +17,9 @@
 #include "../ec.h"
 #include "../gpio.h"
 
+/* Enable EC backed ALS device in ACPI */
+#define EC_ENABLE_ALS_DEVICE
+
 /* Enable EC backed Keyboard Backlight in ACPI */
 #define EC_ENABLE_KEYBOARD_BACKLIGHT