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authorMyungJoo Ham <myungjoo.ham@samsung.com>2011-07-21 00:31:27 +0900
committerKukjin Kim <kgene.kim@samsung.com>2011-07-21 01:46:42 +0900
commit605baf670e9b9900e169c516a650764db39f55c4 (patch)
tree13a11a33a368e0c912a7dcb8b172859a90e4dba4 /arch/arm/mach-exynos4
parented9ba31f6b9fb80b07d27efa87b1f1f374db927c (diff)
ARM: EXYNOS4: configure MAX8903 secondary charger 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>
Diffstat (limited to 'arch/arm/mach-exynos4')
-rw-r--r--arch/arm/mach-exynos4/mach-nuri.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/mach-nuri.c b/arch/arm/mach-exynos4/mach-nuri.c
index d0999519e9ac..002549bf5260 100644
--- a/arch/arm/mach-exynos4/mach-nuri.c
+++ b/arch/arm/mach-exynos4/mach-nuri.c
@@ -16,6 +16,7 @@
#include <linux/i2c-gpio.h>
#include <linux/gpio_keys.h>
#include <linux/gpio.h>
+#include <linux/power/max8903_charger.h>
#include <linux/power/max17042_battery.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
@@ -59,6 +60,7 @@
enum fixed_regulator_id {
FIXED_REG_ID_MMC = 0,
+ FIXED_REG_ID_MAX8903,
};
static struct s3c2410_uartcfg nuri_uartcfgs[] __initdata = {
@@ -981,10 +983,70 @@ static struct i2c_board_info i2c9_devs[] __initdata = {
},
};
+/* MAX8903 Secondary Charger */
+static struct regulator_consumer_supply supplies_max8903[] = {
+ REGULATOR_SUPPLY("vinchg2", "charger-manager.0"),
+};
+
+static struct regulator_init_data max8903_charger_en_data = {
+ .constraints = {
+ .name = "VOUT_CHARGER",
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(supplies_max8903),
+ .consumer_supplies = supplies_max8903,
+};
+
+static struct fixed_voltage_config max8903_charger_en = {
+ .supply_name = "VOUT_CHARGER",
+ .microvolts = 5000000, /* Assume 5VDC */
+ .gpio = EXYNOS4_GPY4(5), /* TA_EN negaged */
+ .enable_high = 0, /* Enable = Low */
+ .enabled_at_boot = 1,
+ .init_data = &max8903_charger_en_data,
+};
+
+static struct platform_device max8903_fixed_reg_dev = {
+ .name = "reg-fixed-voltage",
+ .id = FIXED_REG_ID_MAX8903,
+ .dev = { .platform_data = &max8903_charger_en },
+};
+
+static struct max8903_pdata nuri_max8903 = {
+ /*
+ * cen: don't control with the driver, let it be
+ * controlled by regulator above
+ */
+ .dok = EXYNOS4_GPX1(4), /* TA_nCONNECTED */
+ /* uok, usus: not connected */
+ .chg = EXYNOS4_GPE2(0), /* TA_nCHG */
+ /* flt: vcc_1.8V_pda */
+ .dcm = EXYNOS4_GPL0(1), /* CURR_ADJ */
+
+ .dc_valid = true,
+ .usb_valid = false, /* USB is not wired to MAX8903 */
+};
+
+static struct platform_device nuri_max8903_device = {
+ .name = "max8903-charger",
+ .dev = {
+ .platform_data = &nuri_max8903,
+ },
+};
+
+static struct device *nuri_cm_devices[] = {
+ &s3c_device_i2c5.dev,
+ &s3c_device_adc.dev,
+ NULL, /* Reserved for UART */
+ NULL,
+};
+
static void __init nuri_power_init(void)
{
int gpio;
int irq_base = IRQ_GPIO_END + 1;
+ int ta_en = 0;
nuri_max8997_pdata.irq_base = irq_base;
irq_base += MAX8997_IRQ_NR;
@@ -998,6 +1060,20 @@ static void __init nuri_power_init(void)
gpio_request(gpio, "FUEL_ALERT");
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+
+ gpio = nuri_max8903.dok;
+ gpio_request(gpio, "TA_nCONNECTED");
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ ta_en = gpio_get_value(gpio) ? 0 : 1;
+
+ gpio = nuri_max8903.chg;
+ gpio_request(gpio, "TA_nCHG");
+ gpio_direction_input(gpio);
+
+ gpio = nuri_max8903.dcm;
+ gpio_request(gpio, "CURR_ADJ");
+ gpio_direction_output(gpio, ta_en);
}
/* USB EHCI */
@@ -1028,6 +1104,8 @@ static struct platform_device *nuri_devices[] __initdata = {
&nuri_gpio_keys,
&nuri_lcd_device,
&nuri_backlight_device,
+ &max8903_fixed_reg_dev,
+ &nuri_max8903_device,
};
static void __init nuri_map_io(void)

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