[PATCH 2/2] Exynos4 NURI: add MAX17042 fuel gauge

MyungJoo Ham
2011-06-16T09:09:45Z

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
arch/arm/mach-exynos4/mach-nuri.c | 35 +++++++++++++++++++++++++++++++++++
1 files changed, 35 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-exynos4/mach-nuri.c b/arch/arm/mach-exynos4/mach-nuri.c
index c8c2431..b8c0c5d 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>
@@ -983,6 +985,7 @@ static struct max8997_platform_data nuri_max8997_pdata = {
};

#define NURI_PMIC_GPIO EXYNOS4_GPX0(7)
+#define NURI_FUELGAUGE_GPIO EXYNOS4_GPX2(3)
static void __init nuri_pmic_init(void)
{
int gpio;
@@ -992,6 +995,11 @@ static void __init nuri_pmic_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 = NURI_FUELGAUGE_GPIO;
+ gpio_request(gpio, "FUEL_ALERT");
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}

/* GPIO I2C 5 (PMIC) */
@@ -1003,6 +1011,30 @@ static struct i2c_board_info i2c5_devs[] __initdata = {
},
};

+static struct max17042_platform_data nuri_battery_platform_data = {
+ .enable_current_sense = false,
+};
+
+/* 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,
+ },
+};
+
/* USB EHCI */
static struct s5p_ehci_platdata nuri_ehci_pdata;

@@ -1024,6 +1056,7 @@ static struct platform_device *nuri_devices[] __initdata = {
&s5p_device_ehci,
&s3c_device_i2c3,
&s3c_device_i2c5,
+ &i2c9_gpio,

/* NURI Devices */
&nuri_gpio_keys,
@@ -1050,6 +1083,8 @@ static void __init nuri_machine_init(void)
s3c_i2c5_set_platdata(NULL);
i2c5_devs[I2C5_MAX8997].irq = gpio_to_irq(NURI_PMIC_GPIO);
i2c_register_board_info(5, i2c5_devs, ARRAY_SIZE(i2c5_devs));
+ i2c9_devs[I2C9_MAX17042].irq = gpio_to_irq(NURI_FUELGAUGE_GPIO);
+ i2c_register_board_info(9, i2c9_devs, ARRAY_SIZE(i2c9_devs));

nuri_ehci_init();
clk_xusbxti.rate = 24000000;
--
1.7.4.1