diff --git a/sound/soc/imx/wm1133-ev1.c b/sound/soc/imx/wm1133-ev1.c
index 490a126..147ae69 100644
--- a/sound/soc/imx/wm1133-ev1.c
+++ b/sound/soc/imx/wm1133-ev1.c
@@ -20,6 +20,7 @@
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
+#include <asm/mach-types.h>
 
 #include <mach/audmux.h>
 
@@ -266,6 +267,10 @@ static int __init wm1133_ev1_audio_init(void)
 	int ret;
 	unsigned int ptcr, pdcr;
 
+	if (!machine_is_mx31ads())
+		/* return happy. We might run on a totally different machine */
+		return 0;
+
 	/* SSI0 mastered by port 5 */
 	ptcr = MXC_AUDMUX_V2_PTCR_SYN |
 		MXC_AUDMUX_V2_PTCR_TFSDIR |