diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index 49032651a545..3113e39b318e 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -2349,6 +2349,7 @@ static bool wm5110_volatile_register(struct device *dev, unsigned int reg)
 	case ARIZONA_IRQ_PIN_STATUS:
 	case ARIZONA_AOD_IRQ1:
 	case ARIZONA_AOD_IRQ2:
+	case ARIZONA_FX_CTRL2:
 	case ARIZONA_ASRC_STATUS:
 	case ARIZONA_DSP_STATUS:
 	case ARIZONA_DSP1_CONTROL_1: