linux/drivers/regulator/gpio-regulator.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * gpio-regulator.c
 *
 * Copyright 2011 Heiko Stuebner <[email protected]>
 *
 * based on fixed.c
 *
 * Copyright 2008 Wolfson Microelectronics PLC.
 *
 * Author: Mark Brown <[email protected]>
 *
 * Copyright (c) 2009 Nokia Corporation
 * Roger Quadros <[email protected]>
 *
 * This is useful for systems with mixed controllable and
 * non-controllable regulators, as well as for allowing testing on
 * systems with no controllable regulators.
 */

#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/gpio-regulator.h>
#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/of.h>

struct gpio_regulator_data { … };

static int gpio_regulator_get_value(struct regulator_dev *dev)
{ … }

static int gpio_regulator_set_voltage(struct regulator_dev *dev,
					int min_uV, int max_uV,
					unsigned *selector)
{ … }

static int gpio_regulator_list_voltage(struct regulator_dev *dev,
				      unsigned selector)
{ … }

static int gpio_regulator_set_current_limit(struct regulator_dev *dev,
					int min_uA, int max_uA)
{ … }

static const struct regulator_ops gpio_regulator_voltage_ops = …;

static struct gpio_regulator_config *
of_get_gpio_regulator_config(struct device *dev, struct device_node *np,
			     const struct regulator_desc *desc)
{ … }

static const struct regulator_ops gpio_regulator_current_ops = …;

static int gpio_regulator_probe(struct platform_device *pdev)
{ … }

#if defined(CONFIG_OF)
static const struct of_device_id regulator_gpio_of_match[] = …;
MODULE_DEVICE_TABLE(of, regulator_gpio_of_match);
#endif

static struct platform_driver gpio_regulator_driver = …;

static int __init gpio_regulator_init(void)
{ … }
subsys_initcall(gpio_regulator_init);

static void __exit gpio_regulator_exit(void)
{ … }
module_exit(gpio_regulator_exit);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS(…) …;