1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
5 * Author: Keerthy <j-keerthy@ti.com>
8 #include <linux/interrupt.h>
9 #include <linux/mfd/core.h>
10 #include <linux/module.h>
11 #include <linux/of_device.h>
12 #include <linux/regmap.h>
14 #include <linux/mfd/lp87565.h>
16 static const struct regmap_config lp87565_regmap_config = {
19 .max_register = LP87565_REG_MAX,
22 static const struct mfd_cell lp87565_cells[] = {
23 { .name = "lp87565-q1-regulator", },
24 { .name = "lp87565-q1-gpio", },
27 static const struct of_device_id of_lp87565_match_table[] = {
28 { .compatible = "ti,lp87565", },
30 .compatible = "ti,lp87565-q1",
31 .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1,
35 MODULE_DEVICE_TABLE(of, of_lp87565_match_table);
37 static int lp87565_probe(struct i2c_client *client,
38 const struct i2c_device_id *ids)
40 struct lp87565 *lp87565;
41 const struct of_device_id *of_id;
45 lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL);
49 lp87565->dev = &client->dev;
51 lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config);
52 if (IS_ERR(lp87565->regmap)) {
53 ret = PTR_ERR(lp87565->regmap);
55 "Failed to initialize register map: %d\n", ret);
59 ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid);
61 dev_err(lp87565->dev, "Failed to read OTP ID\n");
65 lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID;
67 of_id = of_match_device(of_lp87565_match_table, &client->dev);
69 lp87565->dev_type = (enum lp87565_device_type)of_id->data;
71 i2c_set_clientdata(client, lp87565);
73 return devm_mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO,
74 lp87565_cells, ARRAY_SIZE(lp87565_cells),
78 static const struct i2c_device_id lp87565_id_table[] = {
82 MODULE_DEVICE_TABLE(i2c, lp87565_id_table);
84 static struct i2c_driver lp87565_driver = {
87 .of_match_table = of_lp87565_match_table,
89 .probe = lp87565_probe,
90 .id_table = lp87565_id_table,
92 module_i2c_driver(lp87565_driver);
94 MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
95 MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver");
96 MODULE_LICENSE("GPL v2");