--- zzzz-none-000/linux-4.1.38/include/linux/ioport.h	2017-01-18 18:48:06.000000000 +0000
+++ bcm63-7582-715/linux-4.1.38/include/linux/ioport.h	2020-11-25 10:06:48.000000000 +0000
@@ -138,6 +138,8 @@
 extern struct resource ioport_resource;
 extern struct resource iomem_resource;
 
+extern struct resource gpio_resource;
+
 extern struct resource *request_resource_conflict(struct resource *root, struct resource *new);
 extern int request_resource(struct resource *root, struct resource *new);
 extern int release_resource(struct resource *new);