};
 MODULE_DEVICE_TABLE(of, afe4403_of_match);
 
-static int __maybe_unused afe4403_suspend(struct device *dev)
+static int afe4403_suspend(struct device *dev)
 {
        struct iio_dev *indio_dev = spi_get_drvdata(to_spi_device(dev));
        struct afe4403_data *afe = iio_priv(indio_dev);
        return 0;
 }
 
-static int __maybe_unused afe4403_resume(struct device *dev)
+static int afe4403_resume(struct device *dev)
 {
        struct iio_dev *indio_dev = spi_get_drvdata(to_spi_device(dev));
        struct afe4403_data *afe = iio_priv(indio_dev);
        return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(afe4403_pm_ops, afe4403_suspend, afe4403_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(afe4403_pm_ops, afe4403_suspend,
+                               afe4403_resume);
 
 static int afe4403_probe(struct spi_device *spi)
 {
        .driver = {
                .name = AFE4403_DRIVER_NAME,
                .of_match_table = afe4403_of_match,
-               .pm = &afe4403_pm_ops,
+               .pm = pm_sleep_ptr(&afe4403_pm_ops),
        },
        .probe = afe4403_probe,
        .remove = afe4403_remove,