From 53e24468f0b31c82565762e51706da72a92aac29 Mon Sep 17 00:00:00 2001
From: Matt DeVillier <matt.devillier@gmail.com>
Date: Fri, 5 Aug 2016 02:20:15 -0500
Subject: soc/intel/broadwell: add ACPI backlight support

Add framework to generate ACPI methods in SSDT for
screen backlight control. Adjust params for gtt_ methods
to match prototypes in i915.h and avoid conflicts.

To make use of this, individual boards will need to
include default_brightness_levels.asl in their dsdt, as
well as add 'register "gfx" = "GMA_STATIC_DISPLAYS(0)"' to
their devicetree.

Change-Id: If93b7690ef36b5d19ca43957e8a1bef91ec5821d
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39941
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
---
 src/soc/intel/broadwell/chip.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/soc/intel/broadwell/chip.h')

diff --git a/src/soc/intel/broadwell/chip.h b/src/soc/intel/broadwell/chip.h
index fabb95ad00..b68da91c03 100644
--- a/src/soc/intel/broadwell/chip.h
+++ b/src/soc/intel/broadwell/chip.h
@@ -15,6 +15,7 @@
 #ifndef _SOC_INTEL_BROADWELL_CHIP_H_
 #define _SOC_INTEL_BROADWELL_CHIP_H_
 
+#include <drivers/intel/gma/i915.h>
 #include <stdint.h>
 
 struct soc_intel_broadwell_config {
@@ -130,6 +131,8 @@ struct soc_intel_broadwell_config {
 	 */
 	int cdclk;
 
+	struct i915_gpu_controller_info gfx;
+
 	/* Enable S0iX support */
 	int s0ix_enable;
 
-- 
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