ASoC: wm8961: add support for devicetree

Add support for devicetree to the WM8961 driver so it can be used with
modern DT-based kernels.
Signed-off-by: Doug Brown <doug@schmorgal.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221003032414.248326-3-doug@schmorgal.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm8961.c

@@ -971,9 +971,16 @@ static const struct i2c_device_id wm8961_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, wm8961_i2c_id);
 
+static const struct of_device_id wm8961_of_match[] __maybe_unused = {
+	{ .compatible = "wlf,wm8961", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, wm8961_of_match);
+
 static struct i2c_driver wm8961_i2c_driver = {
 	.driver = {
 		.name = "wm8961",
+		.of_match_table = of_match_ptr(wm8961_of_match),
 	},
 	.probe_new = wm8961_i2c_probe,
 	.id_table = wm8961_i2c_id,