From 020f2b88971bd3939fec81644f816d9c760e6557 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jeremy@system76.com>
Date: Tue, 29 Dec 2020 11:15:18 -0700
Subject: [PATCH] soc/intel/tigerlake: Add i915_gpu_controller_info

Change-Id: Iadb530d7113a48549779ea3baa499f9f7a772f32
---
 src/soc/intel/tigerlake/Makefile.inc |  1 +
 src/soc/intel/tigerlake/chip.h       |  5 +++++
 src/soc/intel/tigerlake/graphics.c   | 11 +++++++++++
 3 files changed, 17 insertions(+)
 create mode 100644 src/soc/intel/tigerlake/graphics.c

diff --git a/src/soc/intel/tigerlake/Makefile.inc b/src/soc/intel/tigerlake/Makefile.inc
index 4a41812324..94ecaa20a9 100644
--- a/src/soc/intel/tigerlake/Makefile.inc
+++ b/src/soc/intel/tigerlake/Makefile.inc
@@ -37,6 +37,7 @@ ramstage-y += espi.c
 ramstage-y += finalize.c
 ramstage-y += fsp_params.c
 ramstage-y += gpio.c
+ramstage-y += graphics.c
 ramstage-y += lockdown.c
 ramstage-y += p2sb.c
 ramstage-y += pmc.c
diff --git a/src/soc/intel/tigerlake/chip.h b/src/soc/intel/tigerlake/chip.h
index 86e77da972..580f71f90b 100644
--- a/src/soc/intel/tigerlake/chip.h
+++ b/src/soc/intel/tigerlake/chip.h
@@ -4,6 +4,7 @@
 #define _SOC_CHIP_H_
 
 #include <drivers/i2c/designware/dw_i2c.h>
+#include <drivers/intel/gma/gma.h>
 #include <intelblocks/cfg.h>
 #include <intelblocks/gpio.h>
 #include <intelblocks/gspi.h>
@@ -500,6 +501,10 @@ struct soc_intel_tigerlake_config {
 	 *  - PM_CFG.SLP_LAN_MIN_ASST_WDTH
 	 */
 	uint8_t PchPmPwrCycDur;
+
+
+	/* i915 struct for GMA backlight control */
+	struct i915_gpu_controller_info gfx;
 };
 
 typedef struct soc_intel_tigerlake_config config_t;
diff --git a/src/soc/intel/tigerlake/graphics.c b/src/soc/intel/tigerlake/graphics.c
new file mode 100644
index 0000000000..82fbe3be8c
--- /dev/null
+++ b/src/soc/intel/tigerlake/graphics.c
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <intelblocks/graphics.h>
+#include <soc/ramstage.h>
+
+const struct i915_gpu_controller_info *
+intel_igd_get_controller_info(const struct device *device)
+{
+	struct soc_intel_tigerlake_config *chip = device->chip_info;
+	return &chip->gfx;
+}