diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 51fc7b0..bbe5c64 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -367,6 +367,10 @@ int bgpio_init(struct gpio_chip *gc, struct device *dev,
 
 #ifdef CONFIG_GPIOLIB_IRQCHIP
 
+int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
+		     irq_hw_number_t hwirq);
+void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq);
+
 void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
 		struct irq_chip *irqchip,
 		unsigned int parent_irq,