diff options
| -rw-r--r-- | drivers/gpio/gpiolib.c | 23 | ||||
| -rw-r--r-- | include/linux/gpio/driver.h | 3 |
2 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 8f18077..8eba02d 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -15,6 +15,7 @@ #include <linux/acpi.h> #include <linux/gpio/driver.h> #include <linux/gpio/machine.h> +#include <linux/pinctrl/consumer.h> #include "gpiolib.h" @@ -745,6 +746,28 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip) {} #endif /* CONFIG_GPIOLIB_IRQCHIP */ +/** + * gpiochip_generic_request() - request the gpio function for a pin + * @chip: the gpiochip owning the GPIO + * @offset: the offset of the GPIO to request for GPIO function + */ +int gpiochip_generic_request(struct gpio_chip *chip, unsigned offset) +{ + return pinctrl_request_gpio(chip->base + offset); +} +EXPORT_SYMBOL_GPL(gpiochip_generic_request); + +/** + * gpiochip_generic_free() - free the gpio function from a pin + * @chip: the gpiochip to request the gpio function for + * @offset: the offset of the GPIO to free from GPIO function + */ +void gpiochip_generic_free(struct gpio_chip *chip, unsigned offset) +{ + pinctrl_free_gpio(chip->base + offset); +} +EXPORT_SYMBOL_GPL(gpiochip_generic_free); + #ifdef CONFIG_PINCTRL /** diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 1aed31c..d1baebf 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -206,6 +206,9 @@ int _gpiochip_irqchip_add(struct gpio_chip *gpiochip, #endif /* CONFIG_GPIOLIB_IRQCHIP */ +int gpiochip_generic_request(struct gpio_chip *chip, unsigned offset); +void gpiochip_generic_free(struct gpio_chip *chip, unsigned offset); + #ifdef CONFIG_PINCTRL /** |