diff --git a/arch/m68k/include/asm/gpio.h b/arch/m68k/include/asm/gpio.h
index b204683..00d0071 100644
--- a/arch/m68k/include/asm/gpio.h
+++ b/arch/m68k/include/asm/gpio.h
@@ -225,7 +225,8 @@
 
 static inline int gpio_to_irq(unsigned gpio)
 {
-	return (gpio < MCFGPIO_IRQ_MAX) ? gpio + MCFGPIO_IRQ_VECBASE : -EINVAL;
+	return (gpio < MCFGPIO_IRQ_MAX) ? gpio + MCFGPIO_IRQ_VECBASE
+		: __gpio_to_irq(gpio);
 }
 
 static inline int irq_to_gpio(unsigned irq)