Messages in this thread Patch in this message | | | From | Linus Walleij <> | Subject | [PATCH 1/2] gpio: expose gpio_to_chip() | Date | Fri, 10 Jun 2011 10:49:12 +0200 |
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From: Linus Walleij <linus.walleij@linaro.org>
This makes the gpio_to_chip() function available to drivers. The usecase is when you want to add a few chip-specific operations apart from the ones exposed in struct gpio_chip.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- drivers/gpio/gpiolib.c | 2 +- include/asm-generic/gpio.h | 1 + 2 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index a971e3d..dc315e9 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -114,7 +114,7 @@ static int gpio_ensure_requested(struct gpio_desc *desc, unsigned offset) } /* caller holds gpio_lock *OR* gpio is marked as requested */ -static inline struct gpio_chip *gpio_to_chip(unsigned gpio) +struct gpio_chip *gpio_to_chip(unsigned gpio) { return gpio_desc[gpio].chip; } diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index fcdcb5d..dd8c815 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -132,6 +132,7 @@ struct gpio_chip { #endif }; +extern struct gpio_chip *gpio_to_chip(unsigned gpio); extern const char *gpiochip_is_requested(struct gpio_chip *chip, unsigned offset); extern int __must_check gpiochip_reserve(int start, int ngpio); -- 1.7.3.2
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