diff options
Diffstat (limited to 'include/linux/gpio.h')
| -rw-r--r-- | include/linux/gpio.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/include/linux/gpio.h b/include/linux/gpio.h index 32720baf70f..17b5a0d80e4 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> @@ -25,9 +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) @@ -41,7 +52,7 @@ static inline int gpio_request_one(unsigned gpio, return -ENOSYS; } -static inline int gpio_request_array(struct gpio *array, size_t num) +static inline int gpio_request_array(const struct gpio *array, size_t num) { return -ENOSYS; } @@ -54,7 +65,7 @@ static inline void gpio_free(unsigned gpio) WARN_ON(1); } -static inline void gpio_free_array(struct gpio *array, size_t num) +static inline void gpio_free_array(const struct gpio *array, size_t num) { might_sleep(); |