From e5f5ccb646bc6009572b5c23201b5e81638ff150 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Thu, 23 Jul 2009 20:35:53 +0200 Subject: power_supply: get_by_name and set_charged functionality This adds a function that indicates that a battery is fully charged. It also includes functions to get a power_supply device from the class of registered devices by name reference. These can be used to find a specific battery to call power_supply_set_battery_charged() on. Some battery drivers might need this information to calibrate themselves. Signed-off-by: Daniel Mack Cc: Ian Molton Cc: Anton Vorontsov Cc: Matt Reimer Signed-off-by: Anton Vorontsov --- drivers/power/power_supply_core.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'drivers') diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c index 12cd6e3..cce75b4 100644 --- a/drivers/power/power_supply_core.c +++ b/drivers/power/power_supply_core.c @@ -116,6 +116,34 @@ int power_supply_is_system_supplied(void) } EXPORT_SYMBOL_GPL(power_supply_is_system_supplied); +int power_supply_set_battery_charged(struct power_supply *psy) +{ + if (psy->type == POWER_SUPPLY_TYPE_BATTERY && psy->set_charged) { + psy->set_charged(psy); + return 0; + } + + return -EINVAL; +} +EXPORT_SYMBOL_GPL(power_supply_set_battery_charged); + +static int power_supply_match_device_by_name(struct device *dev, void *data) +{ + const char *name = data; + struct power_supply *psy = dev_get_drvdata(dev); + + return strcmp(psy->name, name) == 0; +} + +struct power_supply *power_supply_get_by_name(char *name) +{ + struct device *dev = class_find_device(power_supply_class, NULL, name, + power_supply_match_device_by_name); + + return dev ? dev_get_drvdata(dev) : NULL; +} +EXPORT_SYMBOL_GPL(power_supply_get_by_name); + int power_supply_register(struct device *parent, struct power_supply *psy) { int rc = 0; -- cgit v1.1