static void twl6030_start_usb_charger(struct twl6030_bci_device_info *di, int mA)
{
int ret;
if (!is_battery_present(di)) {
dev_err(di->dev, "BATTERY NOT DETECTED!\n");
return;
}
if (mA < 50) {
ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, 0, CONTROLLER_CTRL1);
if (ret)
goto err;
return;
}
twl6030_config_vichrg_reg(di, di->charger_outcurrentmA);
twl6030_config_cinlimit_reg(di, mA);
twl6030_config_voreg_reg(di, di->platform_data->max_bat_voltagemV);
twl6030_config_iterm_reg(di, di->platform_data->termination_currentmA);
if (mA >= 50) {
twl6030_set_watchdog(di, di->watchdog_duration);
/* disable current termination, suspend mode, boost mode, etc */
twl_i2c_write_u8(TWL6030_MODULE_CHARGER, 0, CHARGERUSB_CTRL1);
ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, CONTROLLER_CTRL1_EN_CHARGER, CONTROLLER_CTRL1);
if (ret)
goto err;
}
/* printk("battery: CHARGER ON\n"); */
return;
err:
pr_err("%s: Error access to TWL6030 (%d)\n", __func__, ret);
}
static void enable_charging(void)
{
struct charger_device_info *di;
di = this_dev;
unsigned int charger_incurrentmA;
unsigned int charger_outcurrentmA;
unsigned int regulation_voltagemV;
unsigned int termination_currentmA;
u8 state = 0;
int cable_status = sec_bci->charger.cable_status;
twl_i2c_read_u8(TWL6030_MODULE_ID1, &state,
TWL6030_REG_GPADC_CTRL);
state |= TWL6030_GPADC_CTRL_SCALER_EN_CH11;
twl_i2c_write_u8(TWL6030_MODULE_ID1, state,
TWL6030_REG_GPADC_CTRL);
switch (cable_status) {
case POWER_SUPPLY_TYPE_USB:
charger_outcurrentmA = 400;
charger_incurrentmA = 400;
regulation_voltagemV = 4200;
termination_currentmA = 150;
dev_dbg(di->dev,"[TA] USB charging start\n");
break;
case POWER_SUPPLY_TYPE_MAINS:
charger_outcurrentmA = 1000;
charger_incurrentmA = 1000;
regulation_voltagemV = 4200;
termination_currentmA = 150;
dev_dbg(di->dev,"[TA] TA charging start\n");
break;
default:
dev_dbg(di->dev,"[TA] inproper charge mode\n");
goto end_enable_charging;
}
twl6030_config_vichrg_reg(di, charger_outcurrentmA);
twl6030_config_cinlimit_reg(di, charger_incurrentmA);
twl6030_config_voreg_reg(di, regulation_voltagemV);
twl6030_config_iterm_reg(di, termination_currentmA);
twl_i2c_write_u8(TWL6030_MODULE_CHARGER,
CONTROLLER_CTRL1_EN_CHARGER,
CONTROLLER_CTRL1);
dev_dbg(di->dev, "ENABLE CHARGING\n");
sec_bci->charger.is_charging = true;
end_enable_charging:
;
}
static ssize_t set_termination_current(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
long val;
int status = count;
struct twl6030_bci_device_info *di = dev_get_drvdata(dev);
if ((strict_strtol(buf, 10, &val) < 0) || (val < 50) || (val > 400))
return -EINVAL;
di->platform_data->termination_currentmA = val;
twl6030_config_iterm_reg(di, val);
return status;
}
