linux/drivers/mfd/adp5520.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Base driver for Analog Devices ADP5520/ADP5501 MFD PMICs
 * LCD Backlight: drivers/video/backlight/adp5520_bl
 * LEDs		: drivers/led/leds-adp5520
 * GPIO		: drivers/gpio/adp5520-gpio (ADP5520 only)
 * Keys		: drivers/input/keyboard/adp5520-keys (ADP5520 only)
 *
 * Copyright 2009 Analog Devices Inc.
 *
 * Author: Michael Hennerich <[email protected]>
 *
 * Derived from da903x:
 * Copyright (C) 2008 Compulab, Ltd.
 *	Mike Rapoport <[email protected]>
 *
 * Copyright (C) 2006-2008 Marvell International Ltd.
 *	Eric Miao <[email protected]>
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/err.h>
#include <linux/i2c.h>

#include <linux/mfd/adp5520.h>

struct adp5520_chip { … };

static int __adp5520_read(struct i2c_client *client,
				int reg, uint8_t *val)
{ … }

static int __adp5520_write(struct i2c_client *client,
				 int reg, uint8_t val)
{ … }

static int __adp5520_ack_bits(struct i2c_client *client, int reg,
			      uint8_t bit_mask)
{ … }

int adp5520_write(struct device *dev, int reg, uint8_t val)
{ … }
EXPORT_SYMBOL_GPL(…);

int adp5520_read(struct device *dev, int reg, uint8_t *val)
{ … }
EXPORT_SYMBOL_GPL(…);

int adp5520_set_bits(struct device *dev, int reg, uint8_t bit_mask)
{ … }
EXPORT_SYMBOL_GPL(…);

int adp5520_clr_bits(struct device *dev, int reg, uint8_t bit_mask)
{ … }
EXPORT_SYMBOL_GPL(…);

int adp5520_register_notifier(struct device *dev, struct notifier_block *nb,
				unsigned int events)
{ … }
EXPORT_SYMBOL_GPL(…);

int adp5520_unregister_notifier(struct device *dev, struct notifier_block *nb,
				unsigned int events)
{ … }
EXPORT_SYMBOL_GPL(…);

static irqreturn_t adp5520_irq_thread(int irq, void *data)
{ … }

static int __remove_subdev(struct device *dev, void *unused)
{ … }

static int adp5520_remove_subdevs(struct adp5520_chip *chip)
{ … }

static int adp5520_probe(struct i2c_client *client)
{ … }

static int adp5520_suspend(struct device *dev)
{ … }

static int adp5520_resume(struct device *dev)
{ … }

static DEFINE_SIMPLE_DEV_PM_OPS(adp5520_pm, adp5520_suspend, adp5520_resume);

static const struct i2c_device_id adp5520_id[] = …;

static struct i2c_driver adp5520_driver = …;
builtin_i2c_driver(…) …;