diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c
index 408291c..5bb49f0 100644
--- a/drivers/mfd/jz4740-adc.c
+++ b/drivers/mfd/jz4740-adc.c
@@ -273,7 +273,8 @@
 	ct->chip.irq_unmask = irq_gc_mask_clr_bit;
 	ct->chip.irq_ack = irq_gc_ack_set_bit;
 
-	irq_setup_generic_chip(gc, IRQ_MSK(5), 0, 0, IRQ_NOPROBE | IRQ_LEVEL);
+	irq_setup_generic_chip(gc, IRQ_MSK(5), IRQ_GC_INIT_MASK_CACHE, 0,
+				IRQ_NOPROBE | IRQ_LEVEL);
 
 	adc->gc = gc;