hid-input/battery: set scope and powered device for HID battery

Set the battery's power supply scope to "Device" and point the power
supply to the powered device.

Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 0f1250d..a9f72f2 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -279,7 +279,8 @@
 	POWER_SUPPLY_PROP_ONLINE,
 	POWER_SUPPLY_PROP_CAPACITY,
 	POWER_SUPPLY_PROP_MODEL_NAME,
-	POWER_SUPPLY_PROP_STATUS
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_SCOPE,
 };
 
 #define HID_BATTERY_QUIRK_PERCENT	(1 << 0) /* always reports percent */
@@ -344,6 +345,10 @@
 		val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
 		break;
 
+	case POWER_SUPPLY_PROP_SCOPE:
+		val->intval = POWER_SUPPLY_SCOPE_DEVICE;
+		break;
+
 	default:
 		ret = -EINVAL;
 		break;
@@ -403,6 +408,8 @@
 		battery->name = NULL;
 	}
 
+	power_supply_powers(battery, &dev->dev);
+
 out:
 	return true;
 }