Merge tag 'ceph-for-6.6-rc1' of https://github.com/ceph/ceph-client
[platform/kernel/linux-starfive.git] / drivers / mfd / act8945a.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * MFD driver for Active-semi ACT8945a PMIC
4  *
5  * Copyright (C) 2015 Atmel Corporation.
6  *
7  * Author: Wenyou Yang <wenyou.yang@atmel.com>
8  */
9
10 #include <linux/i2c.h>
11 #include <linux/mfd/core.h>
12 #include <linux/module.h>
13 #include <linux/of.h>
14 #include <linux/regmap.h>
15
16 static const struct mfd_cell act8945a_devs[] = {
17         {
18                 .name = "act8945a-regulator",
19         },
20         {
21                 .name = "act8945a-charger",
22                 .of_compatible = "active-semi,act8945a-charger",
23         },
24 };
25
26 static const struct regmap_config act8945a_regmap_config = {
27         .reg_bits = 8,
28         .val_bits = 8,
29 };
30
31 static int act8945a_i2c_probe(struct i2c_client *i2c)
32 {
33         int ret;
34         struct regmap *regmap;
35
36         regmap = devm_regmap_init_i2c(i2c, &act8945a_regmap_config);
37         if (IS_ERR(regmap)) {
38                 ret = PTR_ERR(regmap);
39                 dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
40                 return ret;
41         }
42
43         i2c_set_clientdata(i2c, regmap);
44
45         ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_NONE,
46                                    act8945a_devs, ARRAY_SIZE(act8945a_devs),
47                                    NULL, 0, NULL);
48         if (ret) {
49                 dev_err(&i2c->dev, "Failed to add sub devices\n");
50                 return ret;
51         }
52
53         return 0;
54 }
55
56 static const struct i2c_device_id act8945a_i2c_id[] = {
57         { "act8945a", 0 },
58         {}
59 };
60 MODULE_DEVICE_TABLE(i2c, act8945a_i2c_id);
61
62 static const struct of_device_id act8945a_of_match[] = {
63         { .compatible = "active-semi,act8945a", },
64         {},
65 };
66 MODULE_DEVICE_TABLE(of, act8945a_of_match);
67
68 static struct i2c_driver act8945a_i2c_driver = {
69         .driver = {
70                    .name = "act8945a",
71                    .of_match_table = act8945a_of_match,
72         },
73         .probe = act8945a_i2c_probe,
74         .id_table = act8945a_i2c_id,
75 };
76
77 static int __init act8945a_i2c_init(void)
78 {
79         return i2c_add_driver(&act8945a_i2c_driver);
80 }
81 subsys_initcall(act8945a_i2c_init);
82
83 static void __exit act8945a_i2c_exit(void)
84 {
85         i2c_del_driver(&act8945a_i2c_driver);
86 }
87 module_exit(act8945a_i2c_exit);
88
89 MODULE_DESCRIPTION("ACT8945A PMIC multi-function driver");
90 MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
91 MODULE_LICENSE("GPL");