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OpenCloudOS-Kernel
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power: supply: bq24190_charger: Turn off 5V boost regulator on shutdown 

Turn off the 5V boost regulator on shutdown, there are 3 reasons for
doing this:

1. It drains he battery if left on
2. If left on the device will not charge when plugged into a charger
3. If left on and the powered peripheral attached to a Type-C port is
   removed before the next boot, then the Type-C port-controller will
   see VBus being present while nothing is attached confusing the
   TCPM state-machine.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Hans de Goede 2022-02-06 19:35:38 +01:00 committed by Sebastian Reichel
parent c76787b0d8
commit 5e8c1dc78c
1 changed files with 15 additions and 5 deletions
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20
drivers/power/supply/bq24190_charger.c
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@ -497,10 +497,8 @@ static ssize_t bq24190_sysfs_store(struct device *dev,
}
#endif
#ifdef CONFIG_REGULATOR
static int bq24190_set_charge_mode(struct regulator_dev *dev, u8 val)
static int bq24190_set_charge_mode(struct bq24190_dev_info *bdi, u8 val)
{
struct bq24190_dev_info *bdi = rdev_get_drvdata(dev);
int ret;
ret = pm_runtime_get_sync(bdi->dev);
@ -520,14 +518,17 @@ static int bq24190_set_charge_mode(struct regulator_dev *dev, u8 val)
return ret;
}
#ifdef CONFIG_REGULATOR
static int bq24190_vbus_enable(struct regulator_dev *dev)
{
return bq24190_set_charge_mode(dev, BQ24190_REG_POC_CHG_CONFIG_OTG);
return bq24190_set_charge_mode(rdev_get_drvdata(dev),
BQ24190_REG_POC_CHG_CONFIG_OTG);
}
static int bq24190_vbus_disable(struct regulator_dev *dev)
{
return bq24190_set_charge_mode(dev, BQ24190_REG_POC_CHG_CONFIG_CHARGE);
return bq24190_set_charge_mode(rdev_get_drvdata(dev),
BQ24190_REG_POC_CHG_CONFIG_CHARGE);
}
static int bq24190_vbus_is_enabled(struct regulator_dev *dev)
@ -1870,6 +1871,14 @@ static int bq24190_remove(struct i2c_client *client)
return 0;
}
static void bq24190_shutdown(struct i2c_client *client)
{
struct bq24190_dev_info *bdi = i2c_get_clientdata(client);
/* Turn off 5V boost regulator on shutdown */
bq24190_set_charge_mode(bdi, BQ24190_REG_POC_CHG_CONFIG_CHARGE);
}
static __maybe_unused int bq24190_runtime_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
@ -1980,6 +1989,7 @@ MODULE_DEVICE_TABLE(of, bq24190_of_match);
static struct i2c_driver bq24190_driver = {
.probe = bq24190_probe,
.remove = bq24190_remove,
.shutdown = bq24190_shutdown,
.id_table = bq24190_i2c_ids,
.driver = {
.name = "bq24190-charger",