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gpiolib: provide generic request/free implementations

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Provide generic request/free implementations that pinctrl aware gpio
drivers can use instead of open coding if they use a 1:1 pin to gpio
signal mapping.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Jonas Gorski 2015-10-11 17:34:15 +02:00 • committed by Linus Walleij
parent 30cefeacec
commit c771c2f484
2 changed files with 26 additions and 0 deletions
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3
include/linux/gpio/driver.h
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@ -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
/**