1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 79e90b3d3288..f0139b460a72 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -371,6 +371,8 @@ devm_power_supply_register_no_ws(struct device *parent,
 extern void power_supply_unregister(struct power_supply *psy);
 extern int power_supply_powers(struct power_supply *psy, struct device *dev);
 
+#define to_power_supply(device) container_of(device, struct power_supply, dev)
+
 extern void *power_supply_get_drvdata(struct power_supply *psy);
 /* For APM emulation, think legacy userspace. */
 extern struct class *power_supply_class;