static int max8998_charging_control(struct chg_data *chg)
{
int ret;
struct i2c_client *i2c = chg->iodev->i2c;
if (!chg->charging) {
/* disable charging */
ret = max8998_update_reg(i2c, MAX8998_REG_CHGR2,
(1 << MAX8998_SHIFT_CHGEN), MAX8998_MASK_CHGEN);
if (ret < 0)
goto err;
pr_debug("%s : charging disabled\n", __func__);
} else {
/* enable charging */
if (chg->cable_status == CABLE_TYPE_AC) {
/* ac */
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(2 << MAX8998_SHIFT_TOPOFF) |
(3 << MAX8998_SHIFT_RSTR) |
(5 << MAX8998_SHIFT_ICHG));
if (ret < 0)
goto err;
pr_debug("%s : TA charging enabled\n", __func__);
} else {
/* usb */
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(6 << MAX8998_SHIFT_TOPOFF) |
(3 << MAX8998_SHIFT_RSTR) |
(2 << MAX8998_SHIFT_ICHG));
if (ret < 0)
goto err;
pr_debug("%s : USB charging enabled\n", __func__);
}
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR2,
(2 << MAX8998_SHIFT_ESAFEOUT) |
(2 << MAX8998_SHIFT_FT) |
(0 << MAX8998_SHIFT_CHGEN));
if (ret < 0)
goto err;
}
return 0;
err:
pr_err("max8998_read_reg error\n");
return ret;
}
static irqreturn_t max8998_int_work_func(int irq, void *max8998_chg)
{
int ret;
u8 data[MAX8998_NUM_IRQ_REGS];
struct chg_data *chg = max8998_chg;
struct i2c_client *i2c = chg->iodev->i2c;
ret = max8998_bulk_read(i2c, MAX8998_REG_IRQ1, MAX8998_NUM_IRQ_REGS, data);
if (ret < 0)
goto err;
wake_lock(&chg->work_wake_lock);
#ifndef TOPOFF_CURRENT_CHECK
if (data[MAX8998_REG_IRQ3] & MAX8998_IRQ_TOPOFFR_MASK) {
bat_info("%s : topoff intr(%d)\n", __func__, chg->set_batt_full);
if (chg->set_batt_full)
chg->bat_info.batt_is_full = true;
else {
chg->set_batt_full = true;
if (chg->cable_status == CABLE_TYPE_AC)
max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_10 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_600 << MAX8998_SHIFT_ICHG));
else if (chg->cable_status == CABLE_TYPE_USB)
max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_10 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_475 << MAX8998_SHIFT_ICHG));
}
}
#endif
if (data[MAX8998_REG_IRQ4] & MAX8998_IRQ_LOBAT1_MASK)
max8998_lowbat_warning(chg);
if (data[MAX8998_REG_IRQ4] & MAX8998_IRQ_LOBAT2_MASK)
max8998_lowbat_critical(chg);
queue_work(chg->monitor_wqueue, &chg->bat_work);
return IRQ_HANDLED;
err:
pr_err("%s : pmic read error\n", __func__);
return IRQ_HANDLED;
}
int max8998_set_dvsint_direct(u32 armSet, u32 voltage)
{
struct max8998_data *max8998 = client_data_p;
int reg, i, value;
DBG("func =%s called with set=%d, voltage=%d",__func__, armSet, voltage);
if(armSet == DVSINT1)
reg = MAX8998_REG_DVSINT1;
else if(armSet == DVSINT2)
reg = MAX8998_REG_DVSINT2;
else {
printk("Invalid parameter for dvs int\n");
return -EINVAL;
}
for( i =0; i < sizeof(dcdc12_voltage_map)/4; i++)
{
if(dcdc12_voltage_map[i] == voltage)
break;
}
if(i == sizeof(dcdc12_voltage_map)/4)
{
printk("Invalid parameter of voltage value for dvs int\n");
return -EINVAL;
}
value = i;
max8998_write_reg(max8998, value, reg);
return 0;
}
static int max8998_rtc_stop_alarm(struct max8998_rtc_info *info)
{
int ret = max8998_write_reg(info->rtc, MAX8998_ALARM0_CONF, 0);
if (info->lp3974_bug_workaround)
msleep(2000);
return ret;
}
/* Restore registers after hibernation */
static int max8998_restore(struct device *dev)
{
struct i2c_client *i2c = to_i2c_client(dev);
int i;
for (i = 0; i < ARRAY_SIZE(max8998_dump); i++)
max8998_write_reg(i2c, max8998_dump[i].addr,
max8998_dump[i].val);
return 0;
}
int max8998_ldo_disable_direct(int ldo)
{
struct max8998_data *max8998 = client_data_p;
int value, shift;
if((ldo < MAX8998_LDO1) || (ldo > MAX8998_DCDC4))
{
printk("ERROR: Invalid argument passed\n");
return -EINVAL;
}
DBG("func =%s called for regulator = %d\n",__func__,ldo);
spin_lock(&pmic_access_lock);
if (ldo <= MAX8998_LDO5) {
value = max8998_read_reg(max8998, MAX8998_REG_ONOFF1);
shift = 5 - ldo;
value &= ~(1 << shift);
max8998_write_reg(max8998, value, MAX8998_REG_ONOFF1);
} else if (ldo <= MAX8998_LDO13) {
value = max8998_read_reg(max8998, MAX8998_REG_ONOFF2);
shift = 13 - ldo;
value &= ~(1 << shift);
max8998_write_reg(max8998, value, MAX8998_REG_ONOFF2);
} else if (ldo <= MAX8998_LDO17) {
value = max8998_read_reg(max8998, MAX8998_REG_ONOFF3);
shift = 21 - ldo;
value &= ~(1 << shift);
max8998_write_reg(max8998, value, MAX8998_REG_ONOFF3);
} else {
value = max8998_read_reg(max8998, MAX8998_REG_ONOFF1);
shift = 7 - (ldo - MAX8998_DCDC1);
value &= ~(1 << shift);
max8998_write_reg(max8998, value, MAX8998_REG_ONOFF1);
}
spin_unlock(&pmic_access_lock);
return 0;
}
static irqreturn_t max8998_int_work_func(int irq, void *max8998_chg)
{
int ret;
u8 data[MAX8998_NUM_IRQ_REGS];
struct chg_data *chg = max8998_chg;
struct i2c_client *i2c = chg->iodev->i2c;
ret = max8998_bulk_read(i2c, MAX8998_REG_IRQ1, MAX8998_NUM_IRQ_REGS, data);
if (ret < 0)
goto err;
wake_lock(&chg->work_wake_lock);
if (data[MAX8998_REG_IRQ3] & MAX8998_IRQ_TOPOFFR_MASK) {
bat_info("%s : topoff intr(%d)\n", __func__, chg->set_batt_full);
if (chg->set_batt_full)
chg->bat_info.batt_is_full = true;
else {
chg->set_batt_full = true;
if (chg->cable_status == CABLE_TYPE_AC)
#if defined(CONFIG_ARIES_NTT)
max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_10 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_700 << MAX8998_SHIFT_ICHG));
#else
max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_10 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_600 << MAX8998_SHIFT_ICHG));
#endif
else if (chg->cable_status == CABLE_TYPE_USB)
max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_25 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_475 << MAX8998_SHIFT_ICHG));
}
static void s3c_bat_top_off(struct chg_data *chg)
{
struct i2c_client *i2c = chg->iodev->i2c;
bat_info("%s : topoff(%d)\n", __func__, chg->set_batt_full);
if (chg->set_batt_full)
chg->bat_info.batt_is_full = true;
else {
chg->set_batt_full = true;
if (chg->cable_status == CABLE_TYPE_AC)
max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_10 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_600 << MAX8998_SHIFT_ICHG));
else if (chg->cable_status == CABLE_TYPE_USB)
max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_10 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_475 << MAX8998_SHIFT_ICHG));
}
}
static int max8998_ldo_disable(struct regulator_dev *rdev)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
int ldo = max8998_get_ldo(rdev);
int value, shift;
DBG("func =%s called for regulator = %d\n",__func__,ldo);
spin_lock(&pmic_access_lock);
if (ldo <= MAX8998_LDO5) {
value = max8998_read_reg(max8998, MAX8998_REG_ONOFF1);
//shift = 6 - ldo;
shift = 5 - ldo;
value &= ~(1 << shift);
max8998_write_reg(max8998, value, MAX8998_REG_ONOFF1);
} else if (ldo <= MAX8998_LDO13) {
value = max8998_read_reg(max8998, MAX8998_REG_ONOFF2);
shift = 13 - ldo;
value &= ~(1 << shift);
max8998_write_reg(max8998, value, MAX8998_REG_ONOFF2);
} else if (ldo <= MAX8998_LDO17) {
value = max8998_read_reg(max8998, MAX8998_REG_ONOFF3);
shift = 21 - ldo;
value &= ~(1 << shift);
max8998_write_reg(max8998, value, MAX8998_REG_ONOFF3);
} else {
value = max8998_read_reg(max8998, MAX8998_REG_ONOFF1);
shift = 7 - (ldo - MAX8998_DCDC1);
value &= ~(1 << shift);
max8998_write_reg(max8998, value, MAX8998_REG_ONOFF1);
}
spin_unlock(&pmic_access_lock);
return 0;
}
static int max8998_rtc_start_alarm(struct max8998_rtc_info *info)
{
int ret;
u8 alarm0_conf = 0x77;
/* LP3974 with delay bug chips has rtc alarm bugs with "MONTH" field */
if (info->lp3974_bug_workaround)
alarm0_conf = 0x57;
ret = max8998_write_reg(info->rtc, MAX8998_ALARM0_CONF, alarm0_conf);
if (info->lp3974_bug_workaround)
msleep(2000);
return ret;
}
static int max8998_rtc_start_alarm(struct max8998_rtc_info *info)
{
int ret;
u8 alarm0_conf = 0x77;
if (info->lp3974_bug_workaround)
alarm0_conf = 0x57;
ret = max8998_write_reg(info->rtc, MAX8998_ALARM0_CONF, alarm0_conf);
if (info->lp3974_bug_workaround)
msleep(2000);
return ret;
}
static int max8998_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct max8998_platform_data *pdata = i2c->dev.platform_data;
struct max8998_dev *max8998;
int ret = 0;
u8 val;
max8998 = kzalloc(sizeof(struct max8998_dev), GFP_KERNEL);
if (max8998 == NULL)
return -ENOMEM;
i2c_set_clientdata(i2c, max8998);
max8998->dev = &i2c->dev;
max8998->i2c_client = i2c;
max8998->irq = i2c->irq;
if (pdata) {
max8998->ono = pdata->ono;
max8998->irq_base = pdata->irq_base;
}
max8998->dev_read = max8998_i2c_device_read;
max8998->dev_write = max8998_i2c_device_write;
max8998->dev_update = max8998_i2c_device_update;
mutex_init(&max8998->iolock);
max8998_irq_init(max8998);
max8998_read_reg(max8998, MAX8998_REG_ONOFF1, &val);
val &= ~(MAX8998_MASK_EN1|MAX8998_MASK_EN2|MAX8998_MASK_EN4);
max8998_write_reg(max8998, MAX8998_REG_ONOFF1, val);
ret = mfd_add_devices(max8998->dev, -1,
max8998_devs, ARRAY_SIZE(max8998_devs),
NULL, 0);
if (ret < 0)
goto err;
return ret;
err:
mfd_remove_devices(max8998->dev);
kfree(max8998);
return ret;
}
int max8998_ldo_set_voltage_direct(int ldo,
int min_uV, int max_uV)
{
struct max8998_data *max8998 = client_data_p;
int value, shift = 0, mask = 0xff, reg;
int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
int i = 0;
const int *vol_map = NULL;
if((ldo < MAX8998_LDO1) || (ldo > MAX8998_DCDC4))
{
printk("ERROR: Invalid argument passed\n");
return -EINVAL;
}
vol_map = ldo_voltage_map[ldo];
DBG("func =%s called for regulator = %d, min_v=%d, max_v=%d\n",__func__,ldo,min_uV,max_uV);
if (min_vol < 750 ||
max_vol > 3600)
return -EINVAL;
while (vol_map[i]) {
if (vol_map[i] >= min_vol)
break;
i++;
}
DBG("Found voltage=%d\n",vol_map[i]);
if (!vol_map[i])
return -EINVAL;
if (vol_map[i] > max_vol)
return -EINVAL;
if (ldo == MAX8998_LDO3) {
reg = MAX8998_REG_LDO23;
mask = 0x0F;
} else if (ldo == MAX8998_LDO2) {
reg = MAX8998_REG_LDO23;
shift = 4;
mask = 0x0F;
} else if (ldo == MAX8998_LDO8) {
reg = MAX8998_REG_LDO89;
shift = 4;
mask = 0x07;
} else if (ldo == MAX8998_LDO9) {
reg = MAX8998_REG_LDO89;
shift = 2;
mask = 0x03;
} else if (ldo == MAX8998_LDO10) {
reg = MAX8998_REG_LDO1011;
shift = 5;
mask = 0x07;
} else if (ldo == MAX8998_LDO11) {
reg = MAX8998_REG_LDO1011;
mask = 0x1F;
} else if (ldo == MAX8998_LDO12) {
reg = MAX8998_REG_LDO12;
mask = 0xFF;
} else if (ldo == MAX8998_LDO13) {
reg = MAX8998_REG_LDO13;
mask = 0xFF;
} else if (ldo == MAX8998_LDO14) {
reg = MAX8998_REG_LDO14;
mask = 0xFF;
} else if (ldo == MAX8998_LDO15) {
reg = MAX8998_REG_LDO15;
mask = 0xFF;
} else if (ldo == MAX8998_LDO16) {
reg = MAX8998_REG_LDO16;
mask = 0xFF;
} else if (ldo == MAX8998_LDO17) {
reg = MAX8998_REG_LDO17;
mask = 0xFF;
} else if (ldo == MAX8998_DCDC1) {
//reg = 0x04;
reg = MAX8998_REG_DVSARM1;
mask = 0x1f;
} else if (ldo == MAX8998_DCDC2) {
//reg = 0x06;
reg = MAX8998_REG_DVSINT1;
mask = 0x1f;
} else if (ldo == MAX8998_DCDC3) {
reg = MAX8998_REG_BUCK3;
mask = 0xff;
} else if (ldo == MAX8998_DCDC4) {
reg = MAX8998_REG_BUCK4;
mask = 0xff;
} else {// for ldo4,5,6,7
reg = MAX8998_REG_LDO23 + (ldo - MAX8998_LDO3);
mask = 0xff;
}
spin_lock(&pmic_access_lock);
value = max8998_read_reg(max8998, reg);
value &= ~(mask << shift);
value |= (i << shift);
max8998_write_reg(max8998, value, reg);
spin_unlock(&pmic_access_lock);
return 0;
}
static __devinit int max8998_charger_probe(struct platform_device *pdev)
{
struct max8998_dev *iodev = dev_get_drvdata(pdev->dev.parent);
struct max8998_platform_data *pdata = dev_get_platdata(iodev->dev);
struct chg_data *chg;
struct i2c_client *i2c = iodev->i2c;
int ret = 0;
pr_info("%s : MAX8998 Charger Driver Loading\n", __func__);
chg = kzalloc(sizeof(*chg), GFP_KERNEL);
if (!chg)
return -ENOMEM;
chg->iodev = iodev;
chg->pdata = pdata->charger;
if (!chg->pdata || !chg->pdata->adc_table) {
pr_err("%s : No platform data & adc_table supplied\n", __func__);
ret = -EINVAL;
goto err_bat_table;
}
chg->psy_bat.name = "battery",
chg->psy_bat.type = POWER_SUPPLY_TYPE_BATTERY,
chg->psy_bat.properties = max8998_battery_props,
chg->psy_bat.num_properties = ARRAY_SIZE(max8998_battery_props),
chg->psy_bat.get_property = s3c_bat_get_property,
chg->psy_bat.property_is_writeable = s3c_bat_property_is_writeable,
chg->psy_bat.set_property = s3c_bat_set_property,
chg->psy_usb.name = "usb",
chg->psy_usb.type = POWER_SUPPLY_TYPE_USB,
chg->psy_usb.supplied_to = supply_list,
chg->psy_usb.num_supplicants = ARRAY_SIZE(supply_list),
chg->psy_usb.properties = s3c_power_properties,
chg->psy_usb.num_properties = ARRAY_SIZE(s3c_power_properties),
chg->psy_usb.get_property = s3c_usb_get_property,
chg->psy_ac.name = "ac",
chg->psy_ac.type = POWER_SUPPLY_TYPE_MAINS,
chg->psy_ac.supplied_to = supply_list,
chg->psy_ac.num_supplicants = ARRAY_SIZE(supply_list),
chg->psy_ac.properties = s3c_power_properties,
chg->psy_ac.num_properties = ARRAY_SIZE(s3c_power_properties),
chg->psy_ac.get_property = s3c_ac_get_property,
chg->present = 1;
chg->bat_info.batt_health = POWER_SUPPLY_HEALTH_GOOD;
chg->bat_info.batt_is_full = false;
chg->bat_info.batt_temp = 100; //fake
chg->bat_info.batt_percentage = 50; //fake, modem will bootup soon and update it... hopefully
chg->set_charge_timeout = false;
chg->cable_status = CABLE_TYPE_NONE;
mutex_init(&chg->mutex);
platform_set_drvdata(pdev, chg);
ret = max8998_update_reg(i2c, MAX8998_REG_CHGR1, /* disable */
(0x3 << MAX8998_SHIFT_RSTR), MAX8998_MASK_RSTR);
if (ret < 0)
goto err_kfree;
ret = max8998_update_reg(i2c, MAX8998_REG_CHGR2, /* 6 Hr */
(0x2 << MAX8998_SHIFT_FT), MAX8998_MASK_FT);
if (ret < 0)
goto err_kfree;
ret = max8998_update_reg(i2c, MAX8998_REG_CHGR2, /* 4.2V */
(0x0 << MAX8998_SHIFT_BATTSL), MAX8998_MASK_BATTSL);
if (ret < 0)
goto err_kfree;
ret = max8998_update_reg(i2c, MAX8998_REG_CHGR2, /* 105c */
(0x0 << MAX8998_SHIFT_TMP), MAX8998_MASK_TMP);
if (ret < 0)
goto err_kfree;
pr_info("%s : pmic interrupt registered\n", __func__);
ret = max8998_write_reg(i2c, MAX8998_REG_IRQM1,
~(MAX8998_MASK_DCINR | MAX8998_MASK_DCINF));
if (ret < 0)
goto err_kfree;
ret = max8998_write_reg(i2c, MAX8998_REG_IRQM2, 0xFF);
if (ret < 0)
goto err_kfree;
ret = max8998_write_reg(i2c, MAX8998_REG_IRQM3, ~MAX8998_IRQ_CHGRSTF_MASK);
if (ret < 0)
goto err_kfree;
ret = max8998_write_reg(i2c, MAX8998_REG_IRQM4, 0xFF);
if (ret < 0)
goto err_kfree;
wake_lock_init(&chg->vbus_wake_lock, WAKE_LOCK_SUSPEND,
"vbus_present");
wake_lock_init(&chg->work_wake_lock, WAKE_LOCK_SUSPEND,
"max8998-charger");
INIT_WORK(&chg->bat_work, s3c_bat_work);
chg->monitor_wqueue =
create_freezable_workqueue(dev_name(&pdev->dev));
if (!chg->monitor_wqueue) {
pr_err("Failed to create freezeable workqueue\n");
ret = -ENOMEM;
goto err_wake_lock;
}
chg->last_poll = alarm_get_elapsed_realtime();
alarm_init(&chg->alarm, ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP,
s3c_battery_alarm);
check_lpm_charging_mode(chg);
/* init power supplier framework */
ret = power_supply_register(&pdev->dev, &chg->psy_bat);
if (ret) {
pr_err("Failed to register power supply psy_bat\n");
goto err_wqueue;
}
ret = power_supply_register(&pdev->dev, &chg->psy_usb);
if (ret) {
pr_err("Failed to register power supply psy_usb\n");
goto err_supply_unreg_bat;
}
ret = power_supply_register(&pdev->dev, &chg->psy_ac);
if (ret) {
pr_err("Failed to register power supply psy_ac\n");
goto err_supply_unreg_usb;
}
ret = request_threaded_irq(iodev->i2c->irq, NULL,
max8998_int_work_func,
IRQF_TRIGGER_FALLING, "max8998-charger", chg);
if (ret) {
pr_err("%s : Failed to request pmic irq\n", __func__);
goto err_supply_unreg_ac;
}
ret = enable_irq_wake(iodev->i2c->irq);
if (ret) {
pr_err("Failed to enable pmic irq wake\n");
goto err_irq;
}
ret = s3c_bat_create_attrs(chg->psy_bat.dev);
if (ret) {
pr_err("%s : Failed to create_attrs\n", __func__);
goto err_irq;
}
chg->callbacks.set_cable = max8998_set_cable;
if (chg->pdata->register_callbacks)
chg->pdata->register_callbacks(&chg->callbacks);
wake_lock(&chg->work_wake_lock);
queue_work(chg->monitor_wqueue, &chg->bat_work);
return 0;
err_irq:
free_irq(iodev->i2c->irq, NULL);
err_supply_unreg_ac:
power_supply_unregister(&chg->psy_ac);
err_supply_unreg_usb:
power_supply_unregister(&chg->psy_usb);
err_supply_unreg_bat:
power_supply_unregister(&chg->psy_bat);
err_wqueue:
destroy_workqueue(chg->monitor_wqueue);
cancel_work_sync(&chg->bat_work);
alarm_cancel(&chg->alarm);
err_wake_lock:
wake_lock_destroy(&chg->work_wake_lock);
wake_lock_destroy(&chg->vbus_wake_lock);
err_kfree:
mutex_destroy(&chg->mutex);
err_bat_table:
kfree(chg);
return ret;
}
static int max8998_charging_control(struct chg_data *chg)
{
struct i2c_client *i2c = chg->iodev->i2c;
static int prev_charging = -1, prev_cable = -1;
int ret;
int topoff;
if ((prev_charging == chg->charging) && (prev_cable == chg->cable_status))
return 0;
bat_info("%s : chg(%d) cable(%d) dis(%X) bat(%d,%d,%d), esafe(%d)\n", __func__,
chg->charging, chg->cable_status, chg->bat_info.dis_reason,
chg->bat_info.batt_soc, chg->set_batt_full, chg->bat_info.batt_is_full,
chg->esafe);
if (!chg->charging) {
/* disable charging */
s3c_clean_chg_current(chg);
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR2,
(chg->esafe << MAX8998_SHIFT_ESAFEOUT) |
(MAX8998_CHGTIME_7HR << MAX8998_SHIFT_FT) |
(MAX8998_CHGEN_DISABLE << MAX8998_SHIFT_CHGEN));
if (ret < 0)
goto err;
} else {
/* enable charging */
if (chg->cable_status == CABLE_TYPE_AC) {
/* termination current adc NOT used to detect full-charging */
if (chg->pdata->termination_curr_adc > 0)
topoff = MAX8998_TOPOFF_10;
else
topoff = MAX8998_TOPOFF_30;
/* ac */
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(topoff << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_600 << MAX8998_SHIFT_ICHG));
if (ret < 0)
goto err;
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR2,
(chg->esafe << MAX8998_SHIFT_ESAFEOUT) |
(MAX8998_CHGTIME_7HR << MAX8998_SHIFT_FT) |
(MAX8998_CHGEN_ENABLE << MAX8998_SHIFT_CHGEN));
if (ret < 0)
goto err;
} else {
if (chg->pdata->termination_curr_adc > 0)
topoff = MAX8998_TOPOFF_10;
else
topoff = MAX8998_TOPOFF_35;
/* usb */
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(topoff << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_475 << MAX8998_SHIFT_ICHG));
if (ret < 0)
goto err;
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR2,
(chg->esafe << MAX8998_SHIFT_ESAFEOUT) |
(MAX8998_CHGTIME_7HR << MAX8998_SHIFT_FT) |
(MAX8998_CHGEN_ENABLE << MAX8998_SHIFT_CHGEN));
if (ret < 0)
goto err;
}
}
prev_charging = chg->charging;
prev_cable = chg->cable_status;
return 0;
err:
pr_err("max8998_read_reg error\n");
return ret;
}
static int max8998_charging_control(struct chg_data *chg)
{
struct i2c_client *i2c = chg->iodev->i2c;
static int prev_charging = -1, prev_cable = -1;
int ret;
if ((prev_charging == chg->charging) && (prev_cable == chg->cable_status))
return 0;
bat_info("%s : chg(%d) cable(%d) dis(%X) esafe(%d) bat(%d,%d,%d)\n", __func__,
chg->charging, chg->cable_status, chg->bat_info.dis_reason, chg->esafe,
chg->bat_info.batt_soc, chg->set_batt_full, chg->bat_info.batt_is_full);
if (!chg->charging) {
/* disable charging */
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR2,
(chg->esafe << MAX8998_SHIFT_ESAFEOUT) |
(MAX8998_CHGTIME_7HR << MAX8998_SHIFT_FT) |
(MAX8998_CHGEN_DISABLE << MAX8998_SHIFT_CHGEN));
if (ret < 0)
goto err;
} else {
/* enable charging */
if (chg->cable_status == CABLE_TYPE_AC) {
/* ac */
#if defined(CONFIG_ARIES_NTT)
if (chg->set_batt_full)
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_10 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_700 << MAX8998_SHIFT_ICHG));
else
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_15 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_700 << MAX8998_SHIFT_ICHG));
#else
if (chg->set_batt_full)
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_10 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_600 << MAX8998_SHIFT_ICHG));
else
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_20 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_600 << MAX8998_SHIFT_ICHG));
#endif
if (ret < 0)
goto err;
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR2,
(chg->esafe << MAX8998_SHIFT_ESAFEOUT) |
(MAX8998_CHGTIME_7HR << MAX8998_SHIFT_FT) |
(MAX8998_CHGEN_ENABLE << MAX8998_SHIFT_CHGEN));
if (ret < 0)
goto err;
} else {
/* usb */
if (chg->set_batt_full)
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_25 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_475 << MAX8998_SHIFT_ICHG));
else
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR1,
(MAX8998_TOPOFF_30 << MAX8998_SHIFT_TOPOFF) |
(MAX8998_RSTR_DISABLE << MAX8998_SHIFT_RSTR) |
(MAX8998_ICHG_475 << MAX8998_SHIFT_ICHG));
if (ret < 0)
goto err;
ret = max8998_write_reg(i2c, MAX8998_REG_CHGR2,
(chg->esafe << MAX8998_SHIFT_ESAFEOUT) |
(MAX8998_CHGTIME_7HR << MAX8998_SHIFT_FT) |
(MAX8998_CHGEN_ENABLE << MAX8998_SHIFT_CHGEN));
if (ret < 0)
goto err;
}
}
prev_charging = chg->charging;
prev_cable = chg->cable_status;
return 0;
err:
pr_err("max8998_read_reg error\n");
return ret;
}
static __devinit int max8998_charger_probe(struct platform_device *pdev)
{
struct max8998_dev *iodev = dev_get_drvdata(pdev->dev.parent);
struct max8998_platform_data *pdata = dev_get_platdata(iodev->dev);
struct chg_data *chg;
struct i2c_client *i2c = iodev->i2c;
int ret = 0;
bat_info("%s : MAX8998 Charger Driver Loading\n", __func__);
chg = kzalloc(sizeof(*chg), GFP_KERNEL);
if (!chg)
return -ENOMEM;
chg->iodev = iodev;
chg->pdata = pdata->charger;
if (!chg->pdata || !chg->pdata->adc_table) {
pr_err("%s : No platform data & adc_table supplied\n", __func__);
ret = -EINVAL;
goto err_bat_table;
}
chg->psy_bat.name = "battery";
chg->psy_bat.type = POWER_SUPPLY_TYPE_BATTERY;
chg->psy_bat.properties = max8998_battery_props;
chg->psy_bat.num_properties = ARRAY_SIZE(max8998_battery_props);
chg->psy_bat.get_property = s3c_bat_get_property;
chg->psy_usb.name = "usb";
chg->psy_usb.type = POWER_SUPPLY_TYPE_USB;
chg->psy_usb.supplied_to = supply_list;
chg->psy_usb.num_supplicants = ARRAY_SIZE(supply_list);
chg->psy_usb.properties = s3c_power_properties;
chg->psy_usb.num_properties = ARRAY_SIZE(s3c_power_properties);
chg->psy_usb.get_property = s3c_usb_get_property;
chg->psy_ac.name = "ac";
chg->psy_ac.type = POWER_SUPPLY_TYPE_MAINS;
chg->psy_ac.supplied_to = supply_list;
chg->psy_ac.num_supplicants = ARRAY_SIZE(supply_list);
chg->psy_ac.properties = s3c_power_properties;
chg->psy_ac.num_properties = ARRAY_SIZE(s3c_power_properties);
chg->psy_ac.get_property = s3c_ac_get_property;
chg->present = 1;
chg->bat_info.batt_health = POWER_SUPPLY_HEALTH_GOOD;
chg->bat_info.batt_is_full = false;
chg->set_batt_full = false;
chg->set_charge_timeout = false;
chg->cable_status = CABLE_TYPE_NONE;
chg->esafe = MAX8998_USB_VBUS_AP_ON;
mutex_init(&chg->mutex);
platform_set_drvdata(pdev, chg);
ret = max8998_write_reg(i2c, MAX8998_REG_IRQM1,
~(MAX8998_IRQ_DCINR_MASK | MAX8998_IRQ_DCINF_MASK));
if (ret < 0)
goto err_kfree;
ret = max8998_write_reg(i2c, MAX8998_REG_IRQM2, 0xFF);
if (ret < 0)
goto err_kfree;
#ifdef TOPOFF_CURRENT_CHECK
ret = max8998_write_reg(i2c, MAX8998_REG_IRQM3, 0xFF);
#else
ret = max8998_write_reg(i2c, MAX8998_REG_IRQM3, ~MAX8998_IRQ_TOPOFFR_MASK);
#endif
if (ret < 0)
goto err_kfree;
ret = max8998_write_reg(i2c, MAX8998_REG_IRQM4,
~(MAX8998_IRQ_LOBAT2_MASK | MAX8998_IRQ_LOBAT1_MASK));
if (ret < 0)
goto err_kfree;
ret = max8998_update_reg(i2c, MAX8998_REG_ONOFF3,
(1 << MAX8998_SHIFT_ENBATTMON), MAX8998_MASK_ENBATTMON);
if (ret < 0)
goto err_kfree;
ret = max8998_update_reg(i2c, MAX8998_REG_LBCNFG1, 0x7, 0x37); //3.57V
if (ret < 0)
goto err_kfree;
ret = max8998_update_reg(i2c, MAX8998_REG_LBCNFG2, 0x5, 0x37); //3.4V
if (ret < 0)
goto err_kfree;
max8998_lowbat_config(chg, 0);
wake_lock_init(&chg->vbus_wake_lock, WAKE_LOCK_SUSPEND, "vbus_present");
wake_lock_init(&chg->work_wake_lock, WAKE_LOCK_SUSPEND, "max8998-charger");
wake_lock_init(&chg->lowbat_wake_lock, WAKE_LOCK_SUSPEND, "max8998-lowbat");
INIT_WORK(&chg->bat_work, s3c_bat_work);
setup_timer(&chg->bat_work_timer, s3c_bat_work_timer_func, (unsigned long)chg);
chg->monitor_wqueue = create_freezeable_workqueue(dev_name(&pdev->dev));
if (!chg->monitor_wqueue) {
pr_err("%s : Failed to create freezeable workqueue\n", __func__);
ret = -ENOMEM;
goto err_wake_lock;
}
check_lpm_charging_mode(chg);
/* init power supplier framework */
ret = power_supply_register(&pdev->dev, &chg->psy_bat);
if (ret) {
pr_err("%s : Failed to register power supply psy_bat\n", __func__);
goto err_wqueue;
}
ret = power_supply_register(&pdev->dev, &chg->psy_usb);
if (ret) {
pr_err("%s : Failed to register power supply psy_usb\n", __func__);
goto err_supply_unreg_bat;
}
ret = power_supply_register(&pdev->dev, &chg->psy_ac);
if (ret) {
pr_err("%s : Failed to register power supply psy_ac\n", __func__);
goto err_supply_unreg_usb;
}
ret = request_threaded_irq(iodev->i2c->irq, NULL, max8998_int_work_func,
IRQF_TRIGGER_FALLING, "max8998-charger", chg);
if (ret) {
pr_err("%s : Failed to request pmic irq\n", __func__);
goto err_supply_unreg_ac;
}
ret = enable_irq_wake(iodev->i2c->irq);
if (ret) {
pr_err("%s : Failed to enable pmic irq wake\n", __func__);
goto err_irq;
}
ret = s3c_bat_create_attrs(chg->psy_bat.dev);
if (ret) {
pr_err("%s : Failed to create_attrs\n", __func__);
goto err_irq;
}
chg->callbacks.set_cable = max8998_set_cable;
chg->callbacks.set_esafe = max8998_set_esafe;
chg->callbacks.get_vdcin = max8998_get_vdcin;
if (chg->pdata->register_callbacks)
chg->pdata->register_callbacks(&chg->callbacks);
wake_lock(&chg->work_wake_lock);
queue_work(chg->monitor_wqueue, &chg->bat_work);
return 0;
err_irq:
free_irq(iodev->i2c->irq, NULL);
err_supply_unreg_ac:
power_supply_unregister(&chg->psy_ac);
err_supply_unreg_usb:
power_supply_unregister(&chg->psy_usb);
err_supply_unreg_bat:
power_supply_unregister(&chg->psy_bat);
err_wqueue:
destroy_workqueue(chg->monitor_wqueue);
cancel_work_sync(&chg->bat_work);
err_wake_lock:
wake_lock_destroy(&chg->work_wake_lock);
wake_lock_destroy(&chg->vbus_wake_lock);
wake_lock_destroy(&chg->lowbat_wake_lock);
err_kfree:
mutex_destroy(&chg->mutex);
err_bat_table:
kfree(chg);
return ret;
}
