ASoC: codecs: jz4740: Add support for devicetree

Add support for probing the driver from devicetree.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/jz4740.c b/sound/soc/codecs/jz4740.c
index 9b3e122..974e17f 100644
--- a/sound/soc/codecs/jz4740.c
+++ b/sound/soc/codecs/jz4740.c
@@ -346,10 +346,19 @@
 	return ret;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id jz4740_codec_of_matches[] = {
+	{ .compatible = "ingenic,jz4740-codec", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, jz4740_codec_of_matches);
+#endif
+
 static struct platform_driver jz4740_codec_driver = {
 	.probe = jz4740_codec_probe,
 	.driver = {
 		.name = "jz4740-codec",
+		.of_match_table = of_match_ptr(jz4740_codec_of_matches),
 	},
 };