Add a of_device_id struct variable and subsequent call to
MODULE_DEVICE_TABLE macro to complete device tree support.
Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 
 MODULE_DEVICE_TABLE(i2c, ad5933_id);
 
+static const struct of_device_id ad5933_of_match[] = {
+       { .compatible = "adi,ad5933" },
+       { .compatible = "adi,ad5934" },
+       { },
+};
+
+MODULE_DEVICE_TABLE(of, ad5933_of_match);
+
 static struct i2c_driver ad5933_driver = {
        .driver = {
                .name = "ad5933",
+               .of_match_table = ad5933_of_match,
        },
        .probe = ad5933_probe,
        .remove = ad5933_remove,