1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * STMicroelectronics uvis25 i2c driver |
4 | * |
5 | * Copyright 2017 STMicroelectronics Inc. |
6 | * |
7 | * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> |
8 | */ |
9 | |
10 | #include <linux/kernel.h> |
11 | #include <linux/module.h> |
12 | #include <linux/mod_devicetable.h> |
13 | #include <linux/i2c.h> |
14 | #include <linux/slab.h> |
15 | #include <linux/regmap.h> |
16 | |
17 | #include "st_uvis25.h" |
18 | |
19 | #define UVIS25_I2C_AUTO_INCREMENT BIT(7) |
20 | |
21 | static const struct regmap_config st_uvis25_i2c_regmap_config = { |
22 | .reg_bits = 8, |
23 | .val_bits = 8, |
24 | .write_flag_mask = UVIS25_I2C_AUTO_INCREMENT, |
25 | .read_flag_mask = UVIS25_I2C_AUTO_INCREMENT, |
26 | }; |
27 | |
28 | static int st_uvis25_i2c_probe(struct i2c_client *client) |
29 | { |
30 | struct regmap *regmap; |
31 | |
32 | regmap = devm_regmap_init_i2c(client, &st_uvis25_i2c_regmap_config); |
33 | if (IS_ERR(ptr: regmap)) { |
34 | dev_err(&client->dev, "Failed to register i2c regmap %ld\n" , |
35 | PTR_ERR(regmap)); |
36 | return PTR_ERR(ptr: regmap); |
37 | } |
38 | |
39 | return st_uvis25_probe(dev: &client->dev, irq: client->irq, regmap); |
40 | } |
41 | |
42 | static const struct of_device_id st_uvis25_i2c_of_match[] = { |
43 | { .compatible = "st,uvis25" , }, |
44 | {}, |
45 | }; |
46 | MODULE_DEVICE_TABLE(of, st_uvis25_i2c_of_match); |
47 | |
48 | static const struct i2c_device_id st_uvis25_i2c_id_table[] = { |
49 | { ST_UVIS25_DEV_NAME }, |
50 | {}, |
51 | }; |
52 | MODULE_DEVICE_TABLE(i2c, st_uvis25_i2c_id_table); |
53 | |
54 | static struct i2c_driver st_uvis25_driver = { |
55 | .driver = { |
56 | .name = "st_uvis25_i2c" , |
57 | .pm = pm_sleep_ptr(&st_uvis25_pm_ops), |
58 | .of_match_table = st_uvis25_i2c_of_match, |
59 | }, |
60 | .probe = st_uvis25_i2c_probe, |
61 | .id_table = st_uvis25_i2c_id_table, |
62 | }; |
63 | module_i2c_driver(st_uvis25_driver); |
64 | |
65 | MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>" ); |
66 | MODULE_DESCRIPTION("STMicroelectronics uvis25 i2c driver" ); |
67 | MODULE_LICENSE("GPL v2" ); |
68 | MODULE_IMPORT_NS(IIO_UVIS25); |
69 | |