diff options
| author | Alexandre Courbot <acourbot@nvidia.com> | 2014-08-19 10:06:09 -0700 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-08-29 08:58:34 +0200 |
| commit | abdc08a3a263a20e49534a36291d657bf53dda5b (patch) | |
| tree | e26e4f6c9f26f8d7dda2415b0e9ee0b00b03a331 /include/linux/gpio/driver.h | |
| parent | e46cf32ced90d00972d5c3d9322cdb848d183338 (diff) | |
gpio: change gpiochip_request_own_desc() prototype
The current prototype of gpiochip_request_own_desc() requires to obtain
a pointer to a descriptor. This is in contradiction to all other GPIO
request schemes, and imposes an extra step of obtaining a descriptor to
drivers. Most drivers actually cannot even perform that step since the
function that does it (gpichip_get_desc()) is gpiolib-private.
Change gpiochip_request_own_desc() to return a descriptor from a
(chip, hwnum) tuple and update users of this function (currently
gpiolib-acpi only).
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux/gpio/driver.h')
| -rw-r--r-- | include/linux/gpio/driver.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index e78a2373e374..a2de58fffd19 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -166,7 +166,8 @@ int gpiochip_irqchip_add(struct gpio_chip *gpiochip, #endif /* CONFIG_GPIO_IRQCHIP */ -int gpiochip_request_own_desc(struct gpio_desc *desc, const char *label); +struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *chip, u16 hwnum, + const char *label); void gpiochip_free_own_desc(struct gpio_desc *desc); #else /* CONFIG_GPIOLIB */ |