static int tps65090_config_charger(struct tps65090_charger *charger)
{
uint8_t intrmask = 0;
int ret;
if (charger->pdata->enable_low_current_chrg) {
ret = tps65090_low_chrg_current(charger);
if (ret < 0) {
dev_err(charger->dev,
"error configuring low charge current\n");
return ret;
}
}
/* Enable the VACG interrupt for AC power detect */
ret = tps65090_read(charger->dev->parent, TPS65090_REG_INTR_MASK,
&intrmask);
if (ret < 0) {
dev_err(charger->dev, "%s(): error reading in register 0x%x\n",
__func__, TPS65090_REG_INTR_MASK);
return ret;
}
ret = tps65090_write(charger->dev->parent, TPS65090_REG_INTR_MASK,
(intrmask | TPS65090_VACG));
if (ret < 0) {
dev_err(charger->dev, "%s(): error writing in register 0x%x\n",
__func__, TPS65090_REG_CG_CTRL0);
return ret;
}
return 0;
}
static int tps65090_enable_charging(struct tps65090_charger *charger)
{
int ret;
uint8_t ctrl0 = 0;
if (charger->passive_mode)
return 0;
ret = tps65090_read(charger->dev->parent, TPS65090_REG_CG_CTRL0,
&ctrl0);
if (ret < 0) {
dev_err(charger->dev, "%s(): error reading in register 0x%x\n",
__func__, TPS65090_REG_CG_CTRL0);
return ret;
}
ret = tps65090_write(charger->dev->parent, TPS65090_REG_CG_CTRL0,
(ctrl0 | TPS65090_CHARGER_ENABLE));
if (ret < 0) {
dev_err(charger->dev, "%s(): error writing in register 0x%x\n",
__func__, TPS65090_REG_CG_CTRL0);
return ret;
}
return 0;
}
static int tps65090_low_chrg_current(struct tps65090_charger *charger)
{
int ret;
ret = tps65090_write(charger->dev->parent, TPS65090_REG_CG_CTRL5,
TPS65090_NOITERM);
if (ret < 0) {
dev_err(charger->dev, "%s(): error reading in register 0x%x\n",
__func__, TPS65090_REG_CG_CTRL5);
return ret;
}
return 0;
}
static irqreturn_t tps65090_charger_isr(int irq, void *dev_id)
{
struct tps65090_charger *charger = dev_id;
int ret;
uint8_t status1 = 0;
uint8_t intrsts = 0;
ret = tps65090_read(charger->dev->parent, TPS65090_REG_CG_STATUS1,
&status1);
if (ret < 0) {
dev_err(charger->dev, "%s(): Error in reading reg 0x%x\n",
__func__, TPS65090_REG_CG_STATUS1);
return IRQ_HANDLED;
}
msleep(75);
ret = tps65090_read(charger->dev->parent, TPS65090_REG_INTR_STS,
&intrsts);
if (ret < 0) {
dev_err(charger->dev, "%s(): Error in reading reg 0x%x\n",
__func__, TPS65090_REG_INTR_STS);
return IRQ_HANDLED;
}
if (intrsts & TPS65090_VACG) {
ret = tps65090_enable_charging(charger);
if (ret < 0)
return IRQ_HANDLED;
charger->ac_online = 1;
} else {
charger->ac_online = 0;
}
/* Clear interrupts. */
if (!charger->passive_mode) {
ret = tps65090_write(charger->dev->parent,
TPS65090_REG_INTR_STS, 0x00);
if (ret < 0) {
dev_err(charger->dev,
"%s(): Error in writing reg 0x%x\n",
__func__, TPS65090_REG_INTR_STS);
}
}
if (charger->prev_ac_online != charger->ac_online)
power_supply_changed(&charger->ac);
return IRQ_HANDLED;
}
