diff options
| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-02-01 17:27:56 +0200 |
|---|---|---|
| committer |   Bartosz Golaszewski <brgl@bgdev.pl> | 2022-02-08 10:35:49 +0100 |
| commit | 80c78fbeef10121a0fbba3fd2ed333f5de118f6d (patch) | |
| tree | 2ac77439b974b3e37fe4909bec319da190239e55 /drivers/gpio | |
| parent | gpio: Add support for Airoha EN7523 GPIO controller (diff) | |
| download | linux-dev-80c78fbeef10121a0fbba3fd2ed333f5de118f6d.tar.xz linux-dev-80c78fbeef10121a0fbba3fd2ed333f5de118f6d.zip | |
gpiolib: Introduce for_each_gpio_desc_with_flag() macro
In a few places we are using a loop against all GPIO descriptors
with a given flag for a given device. Replace it with a consolidated
for_each type of macro.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib-of.c | 10 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib-sysfs.c | 7 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib.c | 7 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib.h | 7 |
4 files changed, 16 insertions, 15 deletions
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 91dcf2c6cdd8..ae1ce319cd78 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -711,14 +711,12 @@ static int of_gpiochip_scan_gpios(struct gpio_chip *chip) static void of_gpiochip_remove_hog(struct gpio_chip *chip, struct device_node *hog) { - struct gpio_desc *descs = chip->gpiodev->descs; + struct gpio_desc *desc; unsigned int i; - for (i = 0; i < chip->ngpio; i++) { - if (test_bit(FLAG_IS_HOGGED, &descs[i].flags) && - descs[i].hog == hog) - gpiochip_free_own_desc(&descs[i]); - } + for_each_gpio_desc_with_flag(i, chip, desc, FLAG_IS_HOGGED) + if (desc->hog == hog) + gpiochip_free_own_desc(desc); } static int of_gpiochip_match_node(struct gpio_chip *chip, void *data) diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c index 4098bc7f88b7..fc9ec6aa2fc2 100644 --- a/drivers/gpio/gpiolib-sysfs.c +++ b/drivers/gpio/gpiolib-sysfs.c @@ -793,11 +793,8 @@ void gpiochip_sysfs_unregister(struct gpio_device *gdev) mutex_unlock(&sysfs_lock); /* unregister gpiod class devices owned by sysfs */ - for (i = 0; i < chip->ngpio; i++) { - desc = &gdev->descs[i]; - if (test_and_clear_bit(FLAG_SYSFS, &desc->flags)) - gpiod_free(desc); - } + for_each_gpio_desc_with_flag(i, chip, desc, FLAG_SYSFS) + gpiod_free(desc); } static int __init gpiolib_sysfs_init(void) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 3859911b61e9..e3702bc1b533 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -4102,12 +4102,11 @@ int gpiod_hog(struct gpio_desc *desc, const char *name, */ static void gpiochip_free_hogs(struct gpio_chip *gc) { + struct gpio_desc *desc; int id; - for (id = 0; id < gc->ngpio; id++) { - if (test_bit(FLAG_IS_HOGGED, &gc->gpiodev->descs[id].flags)) - gpiochip_free_own_desc(&gc->gpiodev->descs[id]); - } + for_each_gpio_desc_with_flag(id, gc, desc, FLAG_IS_HOGGED) + gpiochip_free_own_desc(desc); } /** diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index 30bc3f80f83e..e1fff54a937d 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -82,6 +82,13 @@ struct gpio_array { }; struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc, unsigned int hwnum); + +#define for_each_gpio_desc_with_flag(i, gc, desc, flag) \ + for (i = 0, desc = gpiochip_get_desc(gc, i); \ + i < gc->ngpio; \ + i++, desc = gpiochip_get_desc(gc, i)) \ + if (!test_bit(flag, &desc->flags)) {} else + int gpiod_get_array_value_complex(bool raw, bool can_sleep, unsigned int array_size, struct gpio_desc **desc_array, |