power_supply: Register cooling device outside of probe

Registering the cooling device from the probe can result in the
execution of get_property() function before it gets initialized.

To avoid this, register the cooling device from a workqueue
instead of registering in the probe.

Signed-off-by: Manaf Meethalavalappu Pallikunhi <quic_manafm@quicinc.com>

drivers/power/supply/power_supply_core.c

@@ -126,13 +126,16 @@ void power_supply_changed(struct power_supply *psy)
 }
 EXPORT_SYMBOL_GPL(power_supply_changed);
 
+static int psy_register_cooler(struct device *dev, struct power_supply *psy);
 /*
  * Notify that power supply was registered after parent finished the probing.
  *
  * Often power supply is registered from driver's probe function. However
  * calling power_supply_changed() directly from power_supply_register()
  * would lead to execution of get_property() function provided by the driver
  * too early - before the probe ends.
+ * Also, registering cooling device from the probe will execute the
+ * get_property() function. So register the cooling device after the probe.
  *
  * Avoid that by waiting on parent's mutex.
  */
@@ -150,6 +153,7 @@ static void power_supply_deferred_register_work(struct work_struct *work)
 	}
 
 	power_supply_changed(psy);
+	psy_register_cooler(psy->dev.parent, psy);
 
 	if (psy->dev.parent)
 		mutex_unlock(&psy->dev.parent->mutex);
@@ -1189,10 +1193,6 @@ __power_supply_register(struct device *parent,
 	if (rc)
 		goto register_thermal_failed;
 
-	rc = psy_register_cooler(psy);
-	if (rc)
-		goto register_cooler_failed;
-
 	rc = power_supply_create_triggers(psy);
 	if (rc)
 		goto create_triggers_failed;
@@ -1222,8 +1222,6 @@ __power_supply_register(struct device *parent,
 add_hwmon_sysfs_failed:
 	power_supply_remove_triggers(psy);
 create_triggers_failed:
-	psy_unregister_cooler(psy);
-register_cooler_failed:
 	psy_unregister_thermal(psy);
 register_thermal_failed:
 	device_del(dev);