From a140b92ef398153c85ee1c697db0a1be210e9677 Mon Sep 17 00:00:00 2001
From: MyungJoo Ham <myungjoo.ham@samsung.com>
Date: Thu, 21 Jul 2011 00:31:27 +0900
Subject: [PATCH] ARM: EXYNOS4: configure MAX17042 fuel gauge on NURI

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-exynos4/mach-nuri.c | 33 +++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/arm/mach-exynos4/mach-nuri.c b/arch/arm/mach-exynos4/mach-nuri.c
index 53a667dee647..43ab82cf6165 100644
--- a/arch/arm/mach-exynos4/mach-nuri.c
+++ b/arch/arm/mach-exynos4/mach-nuri.c
@@ -13,8 +13,10 @@
 #include <linux/input.h>
 #include <linux/i2c.h>
 #include <linux/i2c/atmel_mxt_ts.h>
+#include <linux/i2c-gpio.h>
 #include <linux/gpio_keys.h>
 #include <linux/gpio.h>
+#include <linux/power/max17042_battery.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/fixed.h>
 #include <linux/mfd/max8997.h>
@@ -955,6 +957,29 @@ static struct i2c_board_info i2c5_devs[] __initdata = {
 	},
 };
 
+static struct max17042_platform_data nuri_battery_platform_data = {
+};
+
+/* GPIO I2C 9 (Fuel Gauge) */
+static struct i2c_gpio_platform_data i2c9_gpio_data = {
+	.sda_pin		= EXYNOS4_GPY4(0),      /* XM0ADDR_8 */
+	.scl_pin		= EXYNOS4_GPY4(1),      /* XM0ADDR_9 */
+};
+static struct platform_device i2c9_gpio = {
+	.name			= "i2c-gpio",
+	.id			= 9,
+	.dev			= {
+		.platform_data	= &i2c9_gpio_data,
+	},
+};
+enum { I2C9_MAX17042};
+static struct i2c_board_info i2c9_devs[] __initdata = {
+	[I2C9_MAX17042] = {
+		I2C_BOARD_INFO("max17042", 0x36),
+		.platform_data = &nuri_battery_platform_data,
+	},
+};
+
 static void __init nuri_power_init(void)
 {
 	int gpio;
@@ -967,6 +992,11 @@ static void __init nuri_power_init(void)
 	gpio_request(gpio, "AP_PMIC_IRQ");
 	s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));
 	s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+
+	gpio = EXYNOS4_GPX2(3);
+	gpio_request(gpio, "FUEL_ALERT");
+	s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));
+	s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
 }
 
 /* USB EHCI */
@@ -990,6 +1020,7 @@ static struct platform_device *nuri_devices[] __initdata = {
 	&s3c_device_timer[0],
 	&s5p_device_ehci,
 	&s3c_device_i2c3,
+	&i2c9_gpio,
 
 	/* NURI Devices */
 	&nuri_gpio_keys,
@@ -1016,6 +1047,8 @@ static void __init nuri_machine_init(void)
 	s3c_i2c5_set_platdata(NULL);
 	i2c5_devs[I2C5_MAX8997].irq = gpio_to_irq(EXYNOS4_GPX0(7));
 	i2c_register_board_info(5, i2c5_devs, ARRAY_SIZE(i2c5_devs));
+	i2c9_devs[I2C9_MAX17042].irq = gpio_to_irq(EXYNOS4_GPX2(3));
+	i2c_register_board_info(9, i2c9_devs, ARRAY_SIZE(i2c9_devs));
 
 	nuri_ehci_init();
 	clk_xusbxti.rate = 24000000;
-- 
2.39.5