linux/drivers/gpio/gpiolib-legacy.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/gpio/consumer.h>
#include <linux/gpio/driver.h>

#include <linux/gpio.h>

#include "gpiolib.h"

/*
 * **DEPRECATED** This function is deprecated and must not be used in new code.
 */
void gpio_free(unsigned gpio)
{ … }
EXPORT_SYMBOL_GPL(…);

/**
 * gpio_request_one - request a single GPIO with initial configuration
 * @gpio:	the GPIO number
 * @flags:	GPIO configuration as specified by GPIOF_*
 * @label:	a literal description string of this GPIO
 *
 * **DEPRECATED** This function is deprecated and must not be used in new code.
 */
int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
{ … }
EXPORT_SYMBOL_GPL(…);

/*
 * **DEPRECATED** This function is deprecated and must not be used in new code.
 */
int gpio_request(unsigned gpio, const char *label)
{ … }
EXPORT_SYMBOL_GPL(…);