2 files changed, 31 insertions, 0 deletions

diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 12cd6e36ff1d..cce75b40b435 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;
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 4c7c6fc35487..b5d096d3a9be 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -144,6 +144,7 @@ struct power_supply {
                             enum power_supply_property psp,
                             union power_supply_propval *val);
         void (*external_power_changed)(struct power_supply *psy);
+        void (*set_charged)(struct power_supply *psy);
 
         /* For APM emulation, think legacy userspace. */
         int use_for_apm;
@@ -183,8 +184,10 @@ struct power_supply_info {
         int use_for_apm;
 };
 
+extern struct power_supply *power_supply_get_by_name(char *name);
 extern void power_supply_changed(struct power_supply *psy);
 extern int power_supply_am_i_supplied(struct power_supply *psy);
+extern int power_supply_set_battery_charged(struct power_supply *psy);
 
 #if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE)
 extern int power_supply_is_system_supplied(void);