diff --git a/sound/soc/amd/vangogh/acp5x.h b/sound/soc/amd/vangogh/acp5x.h
index a808635f9740..fe5e1fa98974 100644
--- a/sound/soc/amd/vangogh/acp5x.h
+++ b/sound/soc/amd/vangogh/acp5x.h
@@ -23,7 +23,7 @@
 #define ACP_ERR_INTR_MASK	0x20000000
 #define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
 
-#define ACP5x_DEVS 3
+#define ACP5x_DEVS 4
 #define	ACP5x_REG_START	0x1240000
 #define	ACP5x_REG_END	0x1250200
 #define ACP5x_I2STDM_REG_START	0x1242400
diff --git a/sound/soc/amd/vangogh/pci-acp5x.c b/sound/soc/amd/vangogh/pci-acp5x.c
index a57b762d9f2e..2b6b9edc36e2 100644
--- a/sound/soc/amd/vangogh/pci-acp5x.c
+++ b/sound/soc/amd/vangogh/pci-acp5x.c
@@ -213,6 +213,9 @@ static int snd_acp5x_probe(struct pci_dev *pci,
 		pdevinfo[2].num_res = 1;
 		pdevinfo[2].res = &adata->res[2];
 
+		pdevinfo[3].name = "acp5x_mach";
+		pdevinfo[3].id = 0;
+		pdevinfo[3].parent = &pci->dev;
 		for (i = 0; i < ACP5x_DEVS; i++) {
 			adata->pdev[i] =
 				platform_device_register_full(&pdevinfo[i]);