1 files changed, 33 insertions, 2 deletions

diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index e41f7dd1ae67..17b5a0d80e42 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -3,6 +3,17 @@
 
 /* see Documentation/gpio.txt */
 
+/* make these flag values available regardless of GPIO kconfig options */
+#define GPIOF_DIR_OUT   (0 << 0)
+#define GPIOF_DIR_IN    (1 << 0)
+
+#define GPIOF_INIT_LOW  (0 << 1)
+#define GPIOF_INIT_HIGH (1 << 1)
+
+#define GPIOF_IN                (GPIOF_DIR_IN)
+#define GPIOF_OUT_INIT_LOW      (GPIOF_DIR_OUT | GPIOF_INIT_LOW)
+#define GPIOF_OUT_INIT_HIGH     (GPIOF_DIR_OUT | GPIOF_INIT_HIGH)
+
 #ifdef CONFIG_GENERIC_GPIO
 #include <asm/gpio.h>
 
@@ -13,6 +24,7 @@
 #include <linux/errno.h>
 
 struct device;
+struct gpio;
 struct gpio_chip;
 
 /*
@@ -24,9 +36,9 @@ struct gpio_chip;
  * warning when something is wrongly called.
  */
 
-static inline int gpio_is_valid(int number)
+static inline bool gpio_is_valid(int number)
 {
-        return 0;
+        return false;
 }
 
 static inline int gpio_request(unsigned gpio, const char *label)
@@ -34,6 +46,17 @@ static inline int gpio_request(unsigned gpio, const char *label)
         return -ENOSYS;
 }
 
+static inline int gpio_request_one(unsigned gpio,
+                                        unsigned long flags, const char *label)
+{
+        return -ENOSYS;
+}
+
+static inline int gpio_request_array(const struct gpio *array, size_t num)
+{
+        return -ENOSYS;
+}
+
 static inline void gpio_free(unsigned gpio)
 {
         might_sleep();
@@ -42,6 +65,14 @@ static inline void gpio_free(unsigned gpio)
         WARN_ON(1);
 }
 
+static inline void gpio_free_array(const struct gpio *array, size_t num)
+{
+        might_sleep();
+
+        /* GPIO can never have been requested */
+        WARN_ON(1);
+}
+
 static inline int gpio_direction_input(unsigned gpio)
 {
         return -ENOSYS;