// SPDX-License-Identifier: GPL-2.0-or-later/* * MFD driver for Active-semi ACT8945a PMIC * * Copyright (C) 2015 Atmel Corporation. * * Author: Wenyou Yang <wenyou.yang@atmel.com> */ #include <linux/i2c.h>#include <linux/mfd/core.h>#include <linux/module.h>#include <linux/of.h>#include <linux/regmap.h> static const struct mfd_cell act8945a_devs[] = {	{		.name = "act8945a-regulator",	},	{		.name = "act8945a-charger",		.of_compatible = "active-semi,act8945a-charger",	},}; static const struct regmap_config act8945a_regmap_config = {	.reg_bits = 8,	.val_bits = 8,}; static int act8945a_i2c_probe(struct i2c_client *i2c){	int ret;	struct regmap *regmap; 	regmap = devm_regmap_init_i2c(i2c, &act8945a_regmap_config);	if (IS_ERR(regmap)) {		ret = PTR_ERR(regmap);		dev_err(&i2c->dev, "regmap init failed: %d\n", ret);		return ret;	} 	i2c_set_clientdata(i2c, regmap); 	ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_NONE,				   act8945a_devs, ARRAY_SIZE(act8945a_devs),				   NULL, 0, NULL);	if (ret) {		dev_err(&i2c->dev, "Failed to add sub devices\n");		return ret;	} 	return 0;} static const struct i2c_device_id act8945a_i2c_id[] = {	{ "act8945a" },	{}};MODULE_DEVICE_TABLE(i2c, act8945a_i2c_id); static const struct of_device_id act8945a_of_match[] = {	{ .compatible = "active-semi,act8945a", },	{},};MODULE_DEVICE_TABLE(of, act8945a_of_match); static struct i2c_driver act8945a_i2c_driver = {	.driver = {		   .name = "act8945a",		   .of_match_table = act8945a_of_match,	},	.probe = act8945a_i2c_probe,	.id_table = act8945a_i2c_id,}; static int __init act8945a_i2c_init(void){	return i2c_add_driver(&act8945a_i2c_driver);}subsys_initcall(act8945a_i2c_init); static void __exit act8945a_i2c_exit(void){	i2c_del_driver(&act8945a_i2c_driver);}module_exit(act8945a_i2c_exit); MODULE_DESCRIPTION("ACT8945A PMIC multi-function driver");MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");MODULE_LICENSE("GPL");