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gpiolib: Deduplicate some code in for_each_requested_gpio_in_range()

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Refactor for_each_requested_gpio_in_range() to deduplicate some code
which is basically repeats the for_each_hwgpio(). In order to achieve
this, split the latter to two, for_each_hwgpio_in_range() and
for_each_hwgpio().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250207151149.2119765-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Andy Shevchenko 2025-02-07 17:07:34 +02:00 committed by Bartosz Golaszewski
parent c11708e2b6
commit 8893516000
1 changed files with 21 additions and 14 deletions
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35
include/linux/gpio/driver.h
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@ -549,6 +549,23 @@ DEFINE_CLASS(_gpiochip_for_each_data,
}),
const char **label, int *i)
/**
* for_each_hwgpio_in_range - Iterates over all GPIOs in a given range
* @_chip: Chip to iterate over.
* @_i: Loop counter.
* @_base: First GPIO in the ranger.
* @_size: Amount of GPIOs to check starting from @base.
* @_label: Place to store the address of the label if the GPIO is requested.
* Set to NULL for unused GPIOs.
*/
#define for_each_hwgpio_in_range(_chip, _i, _base, _size, _label) \
for (CLASS(_gpiochip_for_each_data, _data)(&_label, &_i); \
*_data.i < _size; \
(*_data.i)++, kfree(*(_data.label)), *_data.label = NULL) \
if (IS_ERR(*_data.label = \
gpiochip_dup_line_label(_chip, _base + *_data.i))) {} \
else
/**
* for_each_hwgpio - Iterates over all GPIOs for given chip.
* @_chip: Chip to iterate over.
@ -556,13 +573,8 @@ DEFINE_CLASS(_gpiochip_for_each_data,
* @_label: Place to store the address of the label if the GPIO is requested.
* Set to NULL for unused GPIOs.
*/
#define for_each_hwgpio(_chip, _i, _label) \
for (CLASS(_gpiochip_for_each_data, _data)(&_label, &_i); \
*_data.i < _chip->ngpio; \
(*_data.i)++, kfree(*(_data.label)), *_data.label = NULL) \
if (IS_ERR(*_data.label = \
gpiochip_dup_line_label(_chip, *_data.i))) {} \
else
#define for_each_hwgpio(_chip, _i, _label) \
for_each_hwgpio_in_range(_chip, _i, 0, _chip->ngpio, _label)
/**
* for_each_requested_gpio_in_range - iterates over requested GPIOs in a given range
@ -573,13 +585,8 @@ DEFINE_CLASS(_gpiochip_for_each_data,
* @_label: label of current GPIO
*/
#define for_each_requested_gpio_in_range(_chip, _i, _base, _size, _label) \
for (CLASS(_gpiochip_for_each_data, _data)(&_label, &_i); \
*_data.i < _size; \
(*_data.i)++, kfree(*(_data.label)), *_data.label = NULL) \
if ((*_data.label = \
gpiochip_dup_line_label(_chip, _base + *_data.i)) == NULL) {} \
else if (IS_ERR(*_data.label)) {} \
else
for_each_hwgpio_in_range(_chip, _i, _base, _size, _label) \
if (_label == NULL) {} else
/* Iterates over all requested GPIO of the given @chip */
#define for_each_requested_gpio(chip, i, label) \