1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (C) 2022 ROHM Semiconductors
4 *
5 * ROHM/KIONIX accelerometer driver
6 */
7
8 #include <linux/i2c.h>
9 #include <linux/interrupt.h>
10 #include <linux/module.h>
11 #include <linux/regmap.h>
12
13 #include "kionix-kx022a.h"
14
kx022a_i2c_probe(struct i2c_client * i2c)15 static int kx022a_i2c_probe(struct i2c_client *i2c)
16 {
17 struct device *dev = &i2c->dev;
18 const struct kx022a_chip_info *chip_info;
19 struct regmap *regmap;
20
21 if (!i2c->irq) {
22 dev_err(dev, "No IRQ configured\n");
23 return -EINVAL;
24 }
25
26 chip_info = i2c_get_match_data(i2c);
27 if (!chip_info)
28 return -EINVAL;
29
30 regmap = devm_regmap_init_i2c(i2c, chip_info->regmap_config);
31 if (IS_ERR(regmap))
32 return dev_err_probe(dev, PTR_ERR(regmap),
33 "Failed to initialize Regmap\n");
34
35 return kx022a_probe_internal(dev, chip_info);
36 }
37
38 static const struct i2c_device_id kx022a_i2c_id[] = {
39 { .name = "kx022a", .driver_data = (kernel_ulong_t)&kx022a_chip_info },
40 { .name = "kx132-1211", .driver_data = (kernel_ulong_t)&kx132_chip_info },
41 { .name = "kx132acr-lbz", .driver_data = (kernel_ulong_t)&kx132acr_chip_info },
42 { }
43 };
44 MODULE_DEVICE_TABLE(i2c, kx022a_i2c_id);
45
46 static const struct of_device_id kx022a_of_match[] = {
47 { .compatible = "kionix,kx022a", .data = &kx022a_chip_info },
48 { .compatible = "kionix,kx132-1211", .data = &kx132_chip_info },
49 { .compatible = "rohm,kx132acr-lbz", .data = &kx132acr_chip_info },
50 { }
51 };
52 MODULE_DEVICE_TABLE(of, kx022a_of_match);
53
54 static struct i2c_driver kx022a_i2c_driver = {
55 .driver = {
56 .name = "kx022a-i2c",
57 .of_match_table = kx022a_of_match,
58 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
59 },
60 .probe = kx022a_i2c_probe,
61 .id_table = kx022a_i2c_id,
62 };
63 module_i2c_driver(kx022a_i2c_driver);
64
65 MODULE_DESCRIPTION("ROHM/Kionix KX022A accelerometer driver");
66 MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
67 MODULE_LICENSE("GPL");
68 MODULE_IMPORT_NS(IIO_KX022A);
69