diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 1991aea..42adb80 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -318,6 +318,7 @@
 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
 					 struct resource_win *win);
 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
+unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 				 struct resource *res);