--- a/include/linux/mtd/physmap.h
+++ b/include/linux/mtd/physmap.h
@@ -17,6 +17,7 @@
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
 
 struct map_info;
 struct platform_device;
