diff options
| author | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2023-08-21 16:18:27 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2023-08-22 09:37:46 +0200 |
| commit | 9ce4ed5b4db13633f9934a4eac02c4cde04d5c63 (patch) | |
| tree | cc1a729486d8ee9717cab5d01a35bd058c47ee57 /drivers/gpio/gpiolib.c | |
| parent | 91043f559313fb04ac18253fcf18561a40c1b045 (diff) | |
| download | lwn-9ce4ed5b4db13633f9934a4eac02c4cde04d5c63.tar.gz lwn-9ce4ed5b4db13633f9934a4eac02c4cde04d5c63.zip | |
gpiolib: provide and use gpiod_line_state_notify()
Wrap the calls to blocking_notifier_call_chain() for the line state
notifier with a helper that allows us to use fewer lines of code and
simpler syntax.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@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 | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 8f74e0bb2a5c..810bc09467a9 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2178,8 +2178,7 @@ static bool gpiod_free_commit(struct gpio_desc *desc) } spin_unlock_irqrestore(&gpio_lock, flags); - blocking_notifier_call_chain(&desc->gdev->line_state_notifier, - GPIOLINE_CHANGED_RELEASED, desc); + gpiod_line_state_notify(desc, GPIOLINE_CHANGED_RELEASED); return ret; } @@ -3741,6 +3740,12 @@ int gpiod_set_array_value_cansleep(unsigned int array_size, } EXPORT_SYMBOL_GPL(gpiod_set_array_value_cansleep); +void gpiod_line_state_notify(struct gpio_desc *desc, unsigned long action) +{ + blocking_notifier_call_chain(&desc->gdev->line_state_notifier, + action, desc); +} + /** * gpiod_add_lookup_table() - register GPIO device consumers * @table: table of consumers to register @@ -4008,8 +4013,7 @@ static struct gpio_desc *gpiod_find_and_request(struct device *consumer, return ERR_PTR(ret); } - blocking_notifier_call_chain(&desc->gdev->line_state_notifier, - GPIOLINE_CHANGED_REQUESTED, desc); + gpiod_line_state_notify(desc, GPIOLINE_CHANGED_REQUESTED); return desc; } |