diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
index 15ecb4831e12..bf1651cc7e64 100644
--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -293,8 +293,16 @@ static int __init ath79_misc_intc_of_init(
 
 	return 0;
 }
-IRQCHIP_DECLARE(ath79_misc_intc, "qca,ar7100-misc-intc",
-		ath79_misc_intc_of_init);
+
+static int __init ar7100_misc_intc_of_init(
+	struct device_node *node, struct device_node *parent)
+{
+	ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
+	return ath79_misc_intc_of_init(node, parent);
+}
+
+IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
+		ar7100_misc_intc_of_init);
 
 static int __init ar79_cpu_intc_of_init(
 	struct device_node *node, struct device_node *parent)