+#ifdef CONFIG_PM_SLEEP
+static int ds3232_suspend(struct device *dev)
+{
+ struct ds3232 *ds3232 = dev_get_drvdata(dev);
+ struct i2c_client *client = to_i2c_client(dev);
+
+ if (device_can_wakeup(dev)) {
+ ds3232->suspended = true;
+ irq_set_irq_wake(client->irq, 1);
+ }
+
+ return 0;
+}
+
+static int ds3232_resume(struct device *dev)
+{
+ struct ds3232 *ds3232 = dev_get_drvdata(dev);
+ struct i2c_client *client = to_i2c_client(dev);
+
+ if (ds3232->suspended) {
+ ds3232->suspended = false;
+
+ /* Clear the hardware alarm pend flag */
+ schedule_work(&ds3232->work);
+
+ irq_set_irq_wake(client->irq, 0);
+ }
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops ds3232_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(ds3232_suspend, ds3232_resume)
+};
+