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power: supply: sbs-battery: Add alert callback 

To simplify the sbs-manager code and notification of battery removal
use the i2c alert callback to notify the sbs-battery driver that an
event has occurred.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
This commit is contained in:
Phil Reid 2017-05-01 16:49:58 +08:00 committed by Sebastian Reichel
parent cad87f097c
commit cda3b01368
1 changed files with 13 additions and 3 deletions
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16
drivers/power/supply/sbs-battery.c
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@ -701,21 +701,30 @@ done:
return 0;
}
static irqreturn_t sbs_irq(int irq, void *devid)
static void sbs_supply_changed(struct sbs_info *chip)
{
struct sbs_info *chip = devid;
struct power_supply *battery = chip->power_supply;
int ret;
ret = gpiod_get_value_cansleep(chip->gpio_detect);
if (ret < 0)
return ret;
return;
chip->is_present = ret;
power_supply_changed(battery);
}
static irqreturn_t sbs_irq(int irq, void *devid)
{
sbs_supply_changed(devid);
return IRQ_HANDLED;
}
static void sbs_alert(struct i2c_client *client, enum i2c_alert_protocol prot,
unsigned int data)
{
sbs_supply_changed(i2c_get_clientdata(client));
}
static void sbs_external_power_changed(struct power_supply *psy)
{
struct sbs_info *chip = power_supply_get_drvdata(psy);
@ -936,6 +945,7 @@ MODULE_DEVICE_TABLE(of, sbs_dt_ids);
static struct i2c_driver sbs_battery_driver = {
.probe = sbs_probe,
.remove = sbs_remove,
.alert = sbs_alert,
.id_table = sbs_id,
.driver = {
.name = "sbs-battery",