1 files changed, 23 insertions, 3 deletions

diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index e41f7dd1ae6..f79d67f413e 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -13,6 +13,7 @@
 #include <linux/errno.h>
 
 struct device;
+struct gpio;
 struct gpio_chip;
 
 /*
@@ -29,7 +30,18 @@ static inline int gpio_is_valid(int number)
         return 0;
 }
 
-static inline int gpio_request(unsigned gpio, const char *label)
+static inline int __must_check gpio_request(unsigned gpio, const char *label)
+{
+        return -ENOSYS;
+}
+
+static inline int __must_check gpio_request_one(unsigned gpio,
+                                        unsigned long flags, const char *label)
+{
+        return -ENOSYS;
+}
+
+static inline int __must_check gpio_request_array(struct gpio *array, size_t num)
 {
         return -ENOSYS;
 }
@@ -42,12 +54,20 @@ static inline void gpio_free(unsigned gpio)
         WARN_ON(1);
 }
 
-static inline int gpio_direction_input(unsigned gpio)
+static inline void gpio_free_array(struct gpio *array, size_t num)
+{
+        might_sleep();
+
+        /* GPIO can never have been requested */
+        WARN_ON(1);
+}
+
+static inline int __must_check gpio_direction_input(unsigned gpio)
 {
         return -ENOSYS;
 }
 
-static inline int gpio_direction_output(unsigned gpio, int value)
+static inline int __must_check gpio_direction_output(unsigned gpio, int value)
 {
         return -ENOSYS;
 }