1 files changed, 5 insertions, 15 deletions

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index ff5c66080c8c..d494001b1226 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -35,9 +35,9 @@
  * platform data and other tables.
  */
 
-static inline int gpio_is_valid(int number)
+static inline bool gpio_is_valid(int number)
 {
-        return ((unsigned)number) < ARCH_NR_GPIOS;
+        return number >= 0 && number < ARCH_NR_GPIOS;
 }
 
 struct device;
@@ -170,16 +170,6 @@ extern int __gpio_cansleep(unsigned gpio);
 
 extern int __gpio_to_irq(unsigned gpio);
 
-#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)
-
 /**
  * struct gpio - a structure describing a GPIO with configuration
  * @gpio:       the GPIO number
@@ -193,8 +183,8 @@ struct gpio {
 };
 
 extern int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
-extern int gpio_request_array(struct gpio *array, size_t num);
-extern void gpio_free_array(struct gpio *array, size_t num);
+extern int gpio_request_array(const struct gpio *array, size_t num);
+extern void gpio_free_array(const struct gpio *array, size_t num);
 
 #ifdef CONFIG_GPIO_SYSFS
 
@@ -212,7 +202,7 @@ extern void gpio_unexport(unsigned gpio);
 
 #else   /* !CONFIG_GPIOLIB */
 
-static inline int gpio_is_valid(int number)
+static inline bool gpio_is_valid(int number)
 {
         /* only non-negative numbers are valid */
         return number >= 0;