diff options
| -rw-r--r-- | drivers/mfd/tps80031.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/mfd/tps80031.c b/drivers/mfd/tps80031.c index 94ba777bcdb3..f0f2ce1f6840 100644 --- a/drivers/mfd/tps80031.c +++ b/drivers/mfd/tps80031.c @@ -105,6 +105,9 @@ #define TPS80031_CFG_INPUT_PUPD3 0xF2 #define TPS80031_CFG_INPUT_PUPD4 0xF3 +#define TPS80031_BBSPOR_CFG 0xE6 +#define TPS80031_BBSPOR_CHG_EN 0x8 + struct tps80031_pupd_data { u8 reg; u8 pullup_bit; @@ -568,6 +571,17 @@ static void tps80031_pupd_init(struct tps80031 *tps80031, } } +static void tps80031_backup_battery_charger_control(struct tps80031 *tps80031, + int enable) +{ + if (enable) + tps80031_update(tps80031->dev, SLAVE_ID1, TPS80031_BBSPOR_CFG, + TPS80031_BBSPOR_CHG_EN, TPS80031_BBSPOR_CHG_EN); + else + tps80031_update(tps80031->dev, SLAVE_ID1, TPS80031_BBSPOR_CFG, + 0, TPS80031_BBSPOR_CHG_EN); +} + static void tps80031_init_ext_control(struct tps80031 *tps80031, struct tps80031_platform_data *pdata) { int ret; @@ -1287,6 +1301,8 @@ static int __devinit tps80031_i2c_probe(struct i2c_client *client, tps80031_debuginit(tps80031); + tps80031_backup_battery_charger_control(tps80031, 1); + if (pdata->use_power_off && !pm_power_off) pm_power_off = tps80031_power_off; @@ -1302,13 +1318,17 @@ fail: #ifdef CONFIG_PM static int tps80031_i2c_suspend(struct i2c_client *client, pm_message_t state) { + struct tps80031 *tps80031 = i2c_get_clientdata(client); if (client->irq) disable_irq(client->irq); + tps80031_backup_battery_charger_control(tps80031, 0); return 0; } static int tps80031_i2c_resume(struct i2c_client *client) { + struct tps80031 *tps80031 = i2c_get_clientdata(client); + tps80031_backup_battery_charger_control(tps80031, 1); if (client->irq) enable_irq(client->irq); return 0; |