diff --git a/sound/soc/soc-io.c b/sound/soc/soc-io.c
index 22b64317182b..66fcccd79efe 100644
--- a/sound/soc/soc-io.c
+++ b/sound/soc/soc-io.c
@@ -18,6 +18,7 @@
 
 #include <trace/events/asoc.h>
 
+#ifdef CONFIG_REGMAP
 static int hw_write(struct snd_soc_codec *codec, unsigned int reg,
 		    unsigned int value)
 {
@@ -150,4 +151,12 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_soc_codec_set_cache_io);
-
+#else
+int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
+			       int addr_bits, int data_bits,
+			       enum snd_soc_control_type control)
+{
+	return -ENOTSUPP;
+}
+EXPORT_SYMBOL_GPL(snd_soc_codec_set_cache_io);
+#endif