diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/gpio.h | 8 | ||||
| -rw-r--r-- | include/linux/gpio.h | 11 |
2 files changed, 19 insertions, 0 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index d6c379dc64fa..9cca3785cab8 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -141,6 +141,8 @@ extern int __gpio_to_irq(unsigned gpio); * but more typically is configured entirely from userspace. */ extern int gpio_export(unsigned gpio, bool direction_may_change); +extern int gpio_export_link(struct device *dev, const char *name, + unsigned gpio); extern void gpio_unexport(unsigned gpio); #endif /* CONFIG_GPIO_SYSFS */ @@ -185,6 +187,12 @@ static inline int gpio_export(unsigned gpio, bool direction_may_change) return -ENOSYS; } +static inline int gpio_export_link(struct device *dev, const char *name, + unsigned gpio) +{ + return -ENOSYS; +} + static inline void gpio_unexport(unsigned gpio) { } diff --git a/include/linux/gpio.h b/include/linux/gpio.h index e10c49a5b96e..059bd189d35d 100644 --- a/include/linux/gpio.h +++ b/include/linux/gpio.h @@ -12,6 +12,8 @@ #include <linux/types.h> #include <linux/errno.h> +struct device; + /* * Some platforms don't support the GPIO programming interface. * @@ -89,6 +91,15 @@ static inline int gpio_export(unsigned gpio, bool direction_may_change) return -EINVAL; } +static inline int gpio_export_link(struct device *dev, const char *name, + unsigned gpio) +{ + /* GPIO can never have been exported */ + WARN_ON(1); + return -EINVAL; +} + + static inline void gpio_unexport(unsigned gpio) { /* GPIO can never have been exported */ |