From adbb224f5aad822b1cc46481f4fc5e2c1fab5b07 Mon Sep 17 00:00:00 2001
From: Matt DeVillier <matt.devillier@gmail.com>
Date: Fri, 5 Aug 2016 02:21:00 -0500
Subject: [PATCH] mb/google/auron: Add support for ACPI backlight controls

Test: build/boot lulu and samus variants, verify backlight
control functional under Windows 10.

Change-Id: I4725fdea5206ae03df14a8b07e51fdf09f1edebd
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39944
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
---
 src/mainboard/google/auron/devicetree.cb | 3 +++
 src/mainboard/google/auron/dsdt.asl      | 1 +
 2 files changed, 4 insertions(+)

diff --git a/src/mainboard/google/auron/devicetree.cb b/src/mainboard/google/auron/devicetree.cb
index cabcdf0c4b..a84aa98eeb 100644
--- a/src/mainboard/google/auron/devicetree.cb
+++ b/src/mainboard/google/auron/devicetree.cb
@@ -1,5 +1,8 @@
 chip soc/intel/broadwell
 
+	# IGD Displays
+	register "gfx" = "GMA_STATIC_DISPLAYS(0)"
+
 	# Enable eDP Hotplug with 6ms pulse
 	register "gpu_dp_d_hotplug" = "0x06"
 
diff --git a/src/mainboard/google/auron/dsdt.asl b/src/mainboard/google/auron/dsdt.asl
index f7c5000e9c..a22dedd82f 100644
--- a/src/mainboard/google/auron/dsdt.asl
+++ b/src/mainboard/google/auron/dsdt.asl
@@ -38,6 +38,7 @@ DefinitionBlock(
 		{
 			#include <soc/intel/broadwell/acpi/systemagent.asl>
 			#include <soc/intel/broadwell/acpi/pch.asl>
+			#include <drivers/intel/gma/acpi/default_brightness_levels.asl>
 		}
 	}