kionix-kx022a-i2c.c

 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
15static 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
38static 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 = "kx134-1211", .driver_data = (kernel_ulong_t)&kx134_chip_info },
42	{ .name = "kx132acr-lbz", .driver_data = (kernel_ulong_t)&kx132acr_chip_info },
43	{ .name = "kx134acr-lbz", .driver_data = (kernel_ulong_t)&kx134acr_chip_info },
44	{ }
45};
46MODULE_DEVICE_TABLE(i2c, kx022a_i2c_id);
47
48static const struct of_device_id kx022a_of_match[] = {
49	{ .compatible = "kionix,kx022a", .data = &kx022a_chip_info },
50	{ .compatible = "kionix,kx132-1211", .data = &kx132_chip_info },
51	{ .compatible = "kionix,kx134-1211", .data = &kx134_chip_info },
52	{ .compatible = "rohm,kx132acr-lbz", .data = &kx132acr_chip_info },
53	{ .compatible = "rohm,kx134acr-lbz", .data = &kx134acr_chip_info },
54	{ }
55};
56MODULE_DEVICE_TABLE(of, kx022a_of_match);
57
58static struct i2c_driver kx022a_i2c_driver = {
59	.driver = {
60		.name  = "kx022a-i2c",
61		.of_match_table = kx022a_of_match,
62		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
63	  },
64	.probe        = kx022a_i2c_probe,
65	.id_table     = kx022a_i2c_id,
66};
67module_i2c_driver(kx022a_i2c_driver);
68
69MODULE_DESCRIPTION("ROHM/Kionix KX022A accelerometer driver");
70MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
71MODULE_LICENSE("GPL");
72MODULE_IMPORT_NS("IIO_KX022A");