static int tps80031_dcdc_set_voltage_sel(struct regulator_dev *rdev,
unsigned vsel)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
int ret;
u8 reg_val;
if (ri->rinfo->force_reg) {
ret = tps80031_read(parent, ri->rinfo->volt_id,
ri->rinfo->force_reg, ®_val);
if (ret < 0) {
dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
ri->rinfo->force_reg, ret);
return ret;
}
if (!(reg_val & SMPS_CMD_MASK)) {
ret = tps80031_update(parent, ri->rinfo->volt_id,
ri->rinfo->force_reg, vsel, SMPS_VSEL_MASK);
if (ret < 0)
dev_err(ri->dev,
"reg 0x%02x update failed, e = %d\n",
ri->rinfo->force_reg, ret);
return ret;
}
}
ret = tps80031_update(parent, ri->rinfo->volt_id,
ri->rinfo->volt_reg, vsel, SMPS_VSEL_MASK);
if (ret < 0)
dev_err(ri->dev, "reg 0x%02x update failed, e = %d\n",
ri->rinfo->volt_reg, ret);
return ret;
}
static int tps80031_power_req_config(struct device *parent,
struct tps80031_regulator *ri,
struct tps80031_regulator_platform_data *tps80031_pdata)
{
int ret = 0;
if (ri->rinfo->preq_bit < 0)
goto skip_pwr_req_config;
ret = tps80031_ext_power_req_config(parent, ri->ext_ctrl_flag,
ri->rinfo->preq_bit, ri->rinfo->state_reg,
ri->rinfo->trans_reg);
if (ret < 0) {
dev_err(ri->dev, "ext powerreq config failed, err = %d\n", ret);
return ret;
}
skip_pwr_req_config:
if (tps80031_pdata->ext_ctrl_flag & TPS80031_PWR_ON_ON_SLEEP) {
ret = tps80031_update(parent, TPS80031_SLAVE_ID1,
ri->rinfo->trans_reg, TPS80031_TRANS_SLEEP_ON,
TPS80031_TRANS_SLEEP_MASK);
if (ret < 0) {
dev_err(ri->dev, "Reg 0x%02x update failed, e %d\n",
ri->rinfo->trans_reg, ret);
return ret;
}
}
return ret;
}
static int tps80031_reg_disable(struct regulator_dev *rdev)
{
struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
struct device *parent = to_tps80031_dev(rdev);
int ret;
if (ri->ext_ctrl_flag & TPS80031_EXT_PWR_REQ)
return 0;
ret = tps80031_update(parent, TPS80031_SLAVE_ID1, ri->rinfo->state_reg,
TPS80031_STATE_OFF, TPS80031_STATE_MASK);
if (ret < 0)
dev_err(&rdev->dev, "Reg 0x%02x update failed, err = %d\n",
ri->rinfo->state_reg, ret);
return ret;
}
static int tps80031_regulator_config(struct device *parent,
struct tps80031_regulator *ri,
struct tps80031_regulator_platform_data *tps80031_pdata)
{
int ret = 0;
switch (ri->rinfo->desc.id) {
case TPS80031_REGULATOR_LDOUSB:
if (ri->config_flags & (TPS80031_USBLDO_INPUT_VSYS |
TPS80031_USBLDO_INPUT_PMID)) {
unsigned val = 0;
if (ri->config_flags & TPS80031_USBLDO_INPUT_VSYS)
val = MISC2_LDOUSB_IN_VSYS;
else
val = MISC2_LDOUSB_IN_PMID;
ret = tps80031_update(parent, TPS80031_SLAVE_ID1,
TPS80031_MISC2, val,
MISC2_LDOUSB_IN_MASK);
if (ret < 0) {
dev_err(ri->dev,
"LDOUSB config failed, e= %d\n", ret);
return ret;
}
}
break;
case TPS80031_REGULATOR_LDO3:
if (ri->config_flags & TPS80031_LDO3_OUTPUT_VIB) {
ret = tps80031_update(parent, TPS80031_SLAVE_ID1,
TPS80031_MISC2, MISC2_LDO3_SEL_VIB_VAL,
MISC2_LDO3_SEL_VIB_MASK);
if (ret < 0) {
dev_err(ri->dev,
"LDO3 config failed, e = %d\n", ret);
return ret;
}
}
break;
case TPS80031_REGULATOR_VBUS:
/* Provide SW control Ops if VBUS is SW control */
if (!(ri->config_flags & TPS80031_VBUS_SW_ONLY))
ri->rinfo->desc.ops = &tps80031_vbus_sw_ops;
break;
default:
break;
}
/* Configure Active state to ON, SLEEP to OFF and OFF_state to OFF */
ret = tps80031_update(parent, TPS80031_SLAVE_ID1, ri->rinfo->trans_reg,
TPS80031_TRANS_ACTIVE_ON | TPS80031_TRANS_SLEEP_OFF |
TPS80031_TRANS_OFF_OFF, TPS80031_TRANS_ACTIVE_MASK |
TPS80031_TRANS_SLEEP_MASK | TPS80031_TRANS_OFF_MASK);
if (ret < 0) {
dev_err(ri->dev, "trans reg update failed, e %d\n", ret);
return ret;
}
return ret;
}
static int set_charge_current_limit(struct regulator_dev *rdev,
int min_uA, int max_uA)
{
struct tps80031_charger *charger = rdev_get_drvdata(rdev);
int max_vbus_current = 1500;
int max_charge_current = 1500;
int ret;
dev_info(charger->dev, "%s(): Min curr %dmA and max current %dmA\n",
__func__, min_uA/1000, max_uA/1000);
if (!max_uA) {
ret = tps80031_write(charger->dev->parent, SLAVE_ID2,
CONTROLLER_CTRL1, 0x0);
if (ret < 0)
dev_err(charger->dev, "%s(): Failed in writing register 0x%02x\n",
__func__, CONTROLLER_CTRL1);
ret = tps80031_write(charger->dev->parent, SLAVE_ID2,
CONTROLLER_WDG, 0x0);
if (ret < 0)
dev_err(charger->dev, "%s(): Failed in writing register 0x%02x\n",
__func__, CONTROLLER_WDG);
charger->state = charging_state_charging_stopped;
if (charger->charger_cb)
charger->charger_cb(charger->state,
charger->charger_cb_data);
return ret;
}
max_vbus_current = min(max_uA/1000, max_vbus_current);
max_vbus_current = max_vbus_current/50;
if (max_vbus_current)
max_vbus_current--;
ret = tps80031_update(charger->dev->parent, SLAVE_ID2,
CHARGERUSB_CINLIMIT,
charging_current_val_code[max_vbus_current], 0x3F);
if (ret < 0) {
dev_err(charger->dev, "%s(): Failed in writing register 0x%02x\n",
__func__, CHARGERUSB_CINLIMIT);
return ret;
}
max_charge_current = min(max_uA/1000, max_charge_current);
if (max_charge_current <= 300)
max_charge_current = 0;
else if ((max_charge_current > 300) && (max_charge_current <= 500))
max_charge_current = (max_charge_current - 300)/50;
else
max_charge_current = (max_charge_current - 500) / 100 + 4;
ret = tps80031_update(charger->dev->parent, SLAVE_ID2,
CHARGERUSB_VICHRG, (uint8_t)max_charge_current, 0xF);
if (ret < 0) {
dev_err(charger->dev, "%s(): Failed in writing register 0x%02x\n",
__func__, CHARGERUSB_VICHRG);
return ret;
}
/* Enable watchdog timer */
ret = tps80031_write(charger->dev->parent, SLAVE_ID2,
CONTROLLER_WDG, charger->watch_time_sec);
if (ret < 0) {
dev_err(charger->dev, "%s(): Failed in writing register 0x%02x\n",
__func__, CONTROLLER_WDG);
return ret;
}
/* Enable the charging */
ret = tps80031_write(charger->dev->parent, SLAVE_ID2,
CONTROLLER_CTRL1, 0x30);
if (ret < 0) {
dev_err(charger->dev, "%s(): Failed in writing register 0x%02x\n",
__func__, CONTROLLER_CTRL1);
return ret;
}
charger->state = charging_state_charging_in_progress;
if (charger->charger_cb)
charger->charger_cb(charger->state,
charger->charger_cb_data);
return 0;
}
