diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-11-28 21:00:54 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2022-11-29 14:52:20 +0100 |
| commit | 3b7c7478eda00945987d45f902bc3942c89243d3 (patch) | |
| tree | 2546a2c739b292b6edd924e9e6713e2b4fbc6b28 /drivers | |
| parent | 4ef339bc053a62dac9017f80f7bb8cff0412bd29 (diff) | |
| download | lwn-3b7c7478eda00945987d45f902bc3942c89243d3.tar.gz lwn-3b7c7478eda00945987d45f902bc3942c89243d3.zip | |
gpiolib: Provide to_gpio_device() helper
Provide to_gpio_device() helper which can be utilized in the existing
and future code.
While at it, make sure it becomes no-op at compilation time.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 2 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib.h | 9 |
2 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 2729f7ebab9d..0058ee83989d 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -549,7 +549,7 @@ EXPORT_SYMBOL_GPL(gpiochip_line_is_valid); static void gpiodevice_release(struct device *dev) { - struct gpio_device *gdev = container_of(dev, struct gpio_device, dev); + struct gpio_device *gdev = to_gpio_device(dev); unsigned long flags; spin_lock_irqsave(&gpio_lock, flags); diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index d900ecdbac46..e443c1023a37 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -20,9 +20,9 @@ /** * struct gpio_device - internal state container for GPIO devices - * @id: numerical ID number for the GPIO chip * @dev: the GPIO device struct * @chrdev: character device for the GPIO device + * @id: numerical ID number for the GPIO chip * @mockdev: class device used by the deprecated sysfs interface (may be * NULL) * @owner: helps prevent removal of modules exporting active GPIOs @@ -47,9 +47,9 @@ * userspace. */ struct gpio_device { - int id; struct device dev; struct cdev chrdev; + int id; struct device *mockdev; struct module *owner; struct gpio_chip *chip; @@ -72,6 +72,11 @@ struct gpio_device { #endif }; +static inline struct gpio_device *to_gpio_device(struct device *dev) +{ + return container_of(dev, struct gpio_device, dev); +} + /* gpio suffixes used for ACPI and device tree lookup */ static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" }; |