1 files changed, 16 insertions, 0 deletions

diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 4987a84078e..730a20b8357 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -8,6 +8,9 @@
 
 #else
 
+#include <linux/types.h>
+#include <linux/errno.h>
+
 /*
  * Some platforms don't support the GPIO programming interface.
  *
@@ -76,6 +79,19 @@ static inline void gpio_set_value_cansleep(unsigned gpio, int value)
         WARN_ON(1);
 }
 
+static inline int gpio_export(unsigned gpio, bool direction_may_change)
+{
+        /* GPIO can never have been requested or set as {in,out}put */
+        WARN_ON(1);
+        return -EINVAL;
+}
+
+static inline void gpio_unexport(unsigned gpio)
+{
+        /* GPIO can never have been exported */
+        WARN_ON(1);
+}
+
 static inline int gpio_to_irq(unsigned gpio)
 {
         /* GPIO can never have been requested or set as input */