diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/power/tps65090-charger.c | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/drivers/power/tps65090-charger.c b/drivers/power/tps65090-charger.c index 77ab8561fa34..e628f9813e08 100644 --- a/drivers/power/tps65090-charger.c +++ b/drivers/power/tps65090-charger.c @@ -27,6 +27,7 @@ #include <linux/mfd/tps65090.h> #define TPS65090_REG_INTR_STS 0x00 +#define TPS65090_REG_INTR_MASK 0x02 #define TPS65090_REG_CG_CTRL0 0x04 #define TPS65090_REG_CG_CTRL1 0x05 #define TPS65090_REG_CG_CTRL2 0x06 @@ -67,8 +68,7 @@ static int tps65090_low_chrg_current(struct tps65090_charger *charger) return 0; } -static int tps65090_enable_charging(struct tps65090_charger *charger, - uint8_t enable) +static int tps65090_enable_charging(struct tps65090_charger *charger) { int ret; uint8_t ctrl0 = 0; @@ -84,7 +84,7 @@ static int tps65090_enable_charging(struct tps65090_charger *charger, ret = tps65090_write(charger->dev->parent, TPS65090_REG_CG_CTRL0, (ctrl0 | TPS65090_CHARGER_ENABLE)); if (ret < 0) { - dev_err(charger->dev, "%s(): error reading in register 0x%x\n", + dev_err(charger->dev, "%s(): error writing in register 0x%x\n", __func__, TPS65090_REG_CG_CTRL0); return ret; } @@ -93,6 +93,7 @@ static int tps65090_enable_charging(struct tps65090_charger *charger, static int tps65090_config_charger(struct tps65090_charger *charger) { + uint8_t intrmask = 0; int ret; if (charger->pdata->enable_low_current_chrg) { @@ -104,6 +105,23 @@ static int tps65090_config_charger(struct tps65090_charger *charger) } } + /* 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; } @@ -146,7 +164,7 @@ static irqreturn_t tps65090_charger_isr(int irq, void *dev_id) } if (intrsts & TPS65090_VACG) { - ret = tps65090_enable_charging(charger, 1); + ret = tps65090_enable_charging(charger); if (ret < 0) return IRQ_HANDLED; charger->ac_online = 1; @@ -154,6 +172,13 @@ static irqreturn_t tps65090_charger_isr(int irq, void *dev_id) charger->ac_online = 0; } + /* Clear interrupts. */ + 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); @@ -270,7 +295,7 @@ static int tps65090_charger_probe(struct platform_device *pdev) } if (status1 != 0) { - ret = tps65090_enable_charging(cdata, 1); + ret = tps65090_enable_charging(cdata); if (ret < 0) { dev_err(cdata->dev, "error enabling charger\n"); goto fail_free_irq; |