ASoC: ep93xx: Add OF support

Add the new cirrus,ep9301-ac97 and cirrus,ep9301-i2s compatibles.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/20230411165951.2335899-2-alexander.sverdlin@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/cirrus/ep93xx-i2s.c

@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/of.h>
 
 #include <sound/core.h>
 #include <sound/dmaengine_pcm.h>
@@ -514,11 +515,18 @@ static void ep93xx_i2s_remove(struct platform_device *pdev)
 	clk_put(info->mclk);
 }
 
+static const struct of_device_id ep93xx_i2s_of_ids[] = {
+	{ .compatible = "cirrus,ep9301-i2s" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, ep93xx_i2s_of_ids);
+
 static struct platform_driver ep93xx_i2s_driver = {
 	.probe	= ep93xx_i2s_probe,
 	.remove_new = ep93xx_i2s_remove,
 	.driver	= {
 		.name	= "ep93xx-i2s",
+		.of_match_table = ep93xx_i2s_of_ids,
 	},
 };