1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* |
3 | * I2C bus interface for ATC260x PMICs |
4 | * |
5 | * Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> |
6 | * Copyright (C) 2020 Cristian Ciocaltea <cristian.ciocaltea@gmail.com> |
7 | */ |
8 | |
9 | #include <linux/i2c.h> |
10 | #include <linux/mfd/atc260x/core.h> |
11 | #include <linux/module.h> |
12 | #include <linux/of.h> |
13 | #include <linux/regmap.h> |
14 | |
15 | static int atc260x_i2c_probe(struct i2c_client *client) |
16 | { |
17 | struct atc260x *atc260x; |
18 | struct regmap_config regmap_cfg; |
19 | int ret; |
20 | |
21 | atc260x = devm_kzalloc(dev: &client->dev, size: sizeof(*atc260x), GFP_KERNEL); |
22 | if (!atc260x) |
23 | return -ENOMEM; |
24 | |
25 | atc260x->dev = &client->dev; |
26 | atc260x->irq = client->irq; |
27 | |
28 | ret = atc260x_match_device(atc260x, regmap_cfg: ®map_cfg); |
29 | if (ret) |
30 | return ret; |
31 | |
32 | i2c_set_clientdata(client, data: atc260x); |
33 | |
34 | atc260x->regmap = devm_regmap_init_i2c(client, ®map_cfg); |
35 | if (IS_ERR(ptr: atc260x->regmap)) { |
36 | ret = PTR_ERR(ptr: atc260x->regmap); |
37 | dev_err(&client->dev, "failed to init regmap: %d\n" , ret); |
38 | return ret; |
39 | } |
40 | |
41 | return atc260x_device_probe(atc260x); |
42 | } |
43 | |
44 | static const struct of_device_id atc260x_i2c_of_match[] = { |
45 | { .compatible = "actions,atc2603c" , .data = (void *)ATC2603C }, |
46 | { .compatible = "actions,atc2609a" , .data = (void *)ATC2609A }, |
47 | { } |
48 | }; |
49 | MODULE_DEVICE_TABLE(of, atc260x_i2c_of_match); |
50 | |
51 | static struct i2c_driver atc260x_i2c_driver = { |
52 | .driver = { |
53 | .name = "atc260x" , |
54 | .of_match_table = atc260x_i2c_of_match, |
55 | }, |
56 | .probe = atc260x_i2c_probe, |
57 | }; |
58 | module_i2c_driver(atc260x_i2c_driver); |
59 | |
60 | MODULE_DESCRIPTION("ATC260x PMICs I2C bus interface" ); |
61 | MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>" ); |
62 | MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@gmail.com>" ); |
63 | MODULE_LICENSE("GPL" ); |
64 | |