staging: iio: ad2s1200: Add dt table

Add device tree table for matching with the vendor ID.
Signed-off-by: David Veenstra <davidjulianveenstra@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/staging/iio/resolver/ad2s1200.c

@@ -154,6 +154,13 @@ static int ad2s1200_probe(struct spi_device *spi)
 	return devm_iio_device_register(&spi->dev, indio_dev);
 }
 
+static const struct of_device_id ad2s1200_of_match[] = {
+	{ .compatible = "adi,ad2s1200", },
+	{ .compatible = "adi,ad2s1205", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ad2s1200_of_match);
+
 static const struct spi_device_id ad2s1200_id[] = {
 	{ "ad2s1200" },
 	{ "ad2s1205" },
@@ -164,6 +171,7 @@ MODULE_DEVICE_TABLE(spi, ad2s1200_id);
 static struct spi_driver ad2s1200_driver = {
 	.driver = {
 		.name = DRV_NAME,
+		.of_match_table = of_match_ptr(ad2s1200_of_match),
 	},
 	.probe = ad2s1200_probe,
 	.id_table = ad2s1200_id,