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// 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)
{
gpiod_free(gpio_to_desc(gpio));
}
EXPORT_SYMBOL_GPL(gpio_free);
/**
* 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)
{
struct gpio_desc *desc;
int err;
/* Compatibility: assume unavailable "valid" GPIOs will appear later */
desc = gpio_to_desc(gpio);
if (!desc)
return -EPROBE_DEFER;
err = gpiod_request(desc, label);
if (err)
return err;
if (flags & GPIOF_ACTIVE_LOW)
set_bit(FLAG_ACTIVE_LOW, &desc->flags);
if (flags & GPIOF_DIR_IN)
err = gpiod_direction_input(desc);
else
err = gpiod_direction_output_raw(desc,
(flags & GPIOF_INIT_HIGH) ? 1 : 0);
if (err)
goto free_gpio;
return 0;
free_gpio:
gpiod_free(desc);
return err;
}
EXPORT_SYMBOL_GPL(gpio_request_one);
/*
* **DEPRECATED** This function is deprecated and must not be used in new code.
*/
int gpio_request(unsigned gpio, const char *label)
{
struct gpio_desc *desc;
/* Compatibility: assume unavailable "valid" GPIOs will appear later */
desc = gpio_to_desc(gpio);
if (!desc)
return -EPROBE_DEFER;
return gpiod_request(desc, label);
}
EXPORT_SYMBOL_GPL(gpio_request);
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