diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 8fefc961ec06..f1ac2888d488 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -557,6 +557,7 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq)
 		case 1:
 		case 2:
 		case 3:
+		case 4:
 			regmap_patch = wm1811_reva_patch;
 			patch_regs = ARRAY_SIZE(wm1811_reva_patch);
 			break;