// SPDX-License-Identifier: GPL-2.0+/* * MP2629 parent driver for ADC and battery charger * * Copyright 2020 Monolithic Power Systems, Inc * * Author: Saravanan Sekar <sravanhome@gmail.com> */ #include <linux/i2c.h>#include <linux/kernel.h>#include <linux/mfd/core.h>#include <linux/mfd/mp2629.h>#include <linux/module.h>#include <linux/platform_device.h>#include <linux/regmap.h>#include <linux/slab.h> static const struct mfd_cell mp2629_cell[] = {	{		.name = "mp2629_adc",		.of_compatible = "mps,mp2629_adc",	},	{		.name = "mp2629_charger",		.of_compatible = "mps,mp2629_charger",	}}; static const struct regmap_config mp2629_regmap_config = {	.reg_bits = 8,	.val_bits = 8,	.max_register = 0x17,}; static int mp2629_probe(struct i2c_client *client){	struct mp2629_data *ddata;	int ret; 	ddata = devm_kzalloc(&client->dev, sizeof(*ddata), GFP_KERNEL);	if (!ddata)		return -ENOMEM; 	ddata->dev = &client->dev;	i2c_set_clientdata(client, ddata); 	ddata->regmap = devm_regmap_init_i2c(client, &mp2629_regmap_config);	if (IS_ERR(ddata->regmap)) {		dev_err(ddata->dev, "Failed to allocate regmap\n");		return PTR_ERR(ddata->regmap);	} 	ret = devm_mfd_add_devices(ddata->dev, PLATFORM_DEVID_AUTO, mp2629_cell,				   ARRAY_SIZE(mp2629_cell), NULL, 0, NULL);	if (ret)		dev_err(ddata->dev, "Failed to register sub-devices %d\n", ret); 	return ret;} static const struct of_device_id mp2629_of_match[] = {	{ .compatible = "mps,mp2629"},	{ }};MODULE_DEVICE_TABLE(of, mp2629_of_match); static struct i2c_driver mp2629_driver = {	.driver = {		.name = "mp2629",		.of_match_table = mp2629_of_match,	},	.probe		= mp2629_probe,};module_i2c_driver(mp2629_driver); MODULE_AUTHOR("Saravanan Sekar <sravanhome@gmail.com>");MODULE_DESCRIPTION("MP2629 Battery charger parent driver");MODULE_LICENSE("GPL");