diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-04-08 21:18:51 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <brgl@bgdev.pl> | 2022-04-09 22:38:17 +0200 |
| commit | 66f46e370a9aec05524cdffde4062953e6ba2e08 (patch) | |
| tree | a29d0ca07271d5ecc1457ddadc3c68af1f26b885 /drivers/gpio | |
| parent | 57017edd46f835c85642fe8299f13b0db61d4c31 (diff) | |
gpiolib: Split out for_each_gpio_desc() macro
In some cases we want to traverse all GPIO descriptors for given
chip, let's split out for_each_gpio_desc() macro for such cases.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 11 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib.h | 5 |
2 files changed, 7 insertions, 9 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index d41041966cf5..2bdc1efad66e 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -308,15 +308,10 @@ static struct gpio_desc *gpio_name_to_desc(const char * const name) spin_lock_irqsave(&gpio_lock, flags); list_for_each_entry(gdev, &gpio_devices, list) { - int i; - - for (i = 0; i != gdev->ngpio; ++i) { - struct gpio_desc *desc = &gdev->descs[i]; - - if (!desc->name) - continue; + struct gpio_desc *desc; - if (!strcmp(desc->name, name)) { + for_each_gpio_desc(gdev->chip, desc) { + if (desc->name && !strcmp(desc->name, name)) { spin_unlock_irqrestore(&gpio_lock, flags); return desc; } diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index 7bac62d36f0c..eef3ec073d9e 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -100,10 +100,13 @@ struct gpio_array { struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc, unsigned int hwnum); -#define for_each_gpio_desc_with_flag(gc, desc, flag) \ +#define for_each_gpio_desc(gc, desc) \ for (unsigned int __i = 0; \ __i < gc->ngpio && (desc = gpiochip_get_desc(gc, __i)); \ __i++) \ + +#define for_each_gpio_desc_with_flag(gc, desc, flag) \ + for_each_gpio_desc(gc, desc) \ if (!test_bit(flag, &desc->flags)) {} else int gpiod_get_array_value_complex(bool raw, bool can_sleep, |