diff options
Diffstat (limited to 'drivers/power/power_supply_core.c')
| -rw-r--r-- | drivers/power/power_supply_core.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c index cb1ccb472921..5520040449c4 100644 --- a/drivers/power/power_supply_core.c +++ b/drivers/power/power_supply_core.c @@ -87,12 +87,36 @@ int power_supply_am_i_supplied(struct power_supply *psy) return error; } +static int __power_supply_is_system_supplied(struct device *dev, void *data) +{ + union power_supply_propval ret = {0,}; + struct power_supply *psy = dev_get_drvdata(dev); + + if (psy->type != POWER_SUPPLY_TYPE_BATTERY) { + if (psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &ret)) + return 0; + if (ret.intval) + return ret.intval; + } + return 0; +} + +int power_supply_is_system_supplied(void) +{ + int error; + + error = class_for_each_device(power_supply_class, NULL, NULL, + __power_supply_is_system_supplied); + + return error; +} + int power_supply_register(struct device *parent, struct power_supply *psy) { int rc = 0; - psy->dev = device_create_drvdata(power_supply_class, parent, 0, - psy, "%s", psy->name); + psy->dev = device_create(power_supply_class, parent, 0, psy, + "%s", psy->name); if (IS_ERR(psy->dev)) { rc = PTR_ERR(psy->dev); goto dev_create_failed; @@ -148,6 +172,7 @@ static void __exit power_supply_class_exit(void) EXPORT_SYMBOL_GPL(power_supply_changed); EXPORT_SYMBOL_GPL(power_supply_am_i_supplied); +EXPORT_SYMBOL_GPL(power_supply_is_system_supplied); EXPORT_SYMBOL_GPL(power_supply_register); EXPORT_SYMBOL_GPL(power_supply_unregister); |