diff options
| author | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2023-09-27 16:29:21 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2023-10-04 13:28:58 +0200 |
| commit | 36aa129f221c9070afd8dff03154ab49702a5b1b (patch) | |
| tree | dc072a8cdad3068e7fba18819756d18784d81f18 /drivers/gpio/gpiolib.c | |
| parent | 968118fcf0546ef74cf306bf8f8c1e06efff10e3 (diff) | |
gpiolib: make gpio_device_get() and gpio_device_put() public
In order to start migrating away from accessing struct gpio_chip by
users other than their owners, let's first make the reference management
functions for the opaque struct gpio_device public in the driver.h
header.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 7c27a1efc1b0..c9d8f6b57771 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1058,6 +1058,30 @@ static struct gpio_chip *find_chip_by_name(const char *name) return gpiochip_find((void *)name, gpiochip_match_name); } +/** + * gpio_device_get() - Increase the reference count of this GPIO device + * @gdev: GPIO device to increase the refcount for + * + * Returns: + * Pointer to @gdev. + */ +struct gpio_device *gpio_device_get(struct gpio_device *gdev) +{ + return to_gpio_device(get_device(&gdev->dev)); +} +EXPORT_SYMBOL_GPL(gpio_device_get); + +/** + * gpio_device_put() - Decrease the reference count of this GPIO device and + * possibly free all resources associated with it. + * @gdev: GPIO device to decrease the reference count for + */ +void gpio_device_put(struct gpio_device *gdev) +{ + put_device(&gdev->dev); +} +EXPORT_SYMBOL_GPL(gpio_device_put); + #ifdef CONFIG_GPIOLIB_IRQCHIP /* |