diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index e4cf42438487..eb364639fa58 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -7,6 +7,7 @@
 #include <linux/types.h>
 #include <linux/mutex.h>
 #include <linux/device.h>
+#include <linux/of.h>
 #include <linux/spi/spi.h>
 #include <linux/slab.h>
 #include <linux/sysfs.h>