Commit 66f46e37 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Bartosz Golaszewski
Browse files

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: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarBartosz Golaszewski <brgl@bgdev.pl>
parent 57017edd

drivers/gpio/gpiolib.c

+3 −8
Original line number Diff line number Diff line
@@ -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;

			}

drivers/gpio/gpiolib.h

+4 −1
Original line number Diff line number Diff line
@@ -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,