1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (c) 2018 Synopsys, Inc. and/or its affiliates.
4  *
5  * Author: Vitor Soares <vitor.soares@synopsys.com>
6  */
7 
8 #include <linux/kernel.h>
9 #include <linux/module.h>
10 #include <linux/i3c/device.h>
11 #include <linux/i3c/master.h>
12 #include <linux/slab.h>
13 #include <linux/of.h>
14 #include <linux/regmap.h>
15 
16 #include "st_lsm6dsx.h"
17 
18 static const struct i3c_device_id st_lsm6dsx_i3c_ids[] = {
19 	I3C_DEVICE(0x0104, 0x006C, (void *)ST_LSM6DSO_ID),
20 	I3C_DEVICE(0x0104, 0x006B, (void *)ST_LSM6DSR_ID),
21 	{ /* sentinel */ },
22 };
23 MODULE_DEVICE_TABLE(i3c, st_lsm6dsx_i3c_ids);
24 
25 static int st_lsm6dsx_i3c_probe(struct i3c_device *i3cdev)
26 {
27 	struct regmap_config st_lsm6dsx_i3c_regmap_config = {
28 		.reg_bits = 8,
29 		.val_bits = 8,
30 	};
31 	const struct i3c_device_id *id = i3c_device_match_id(i3cdev,
32 							    st_lsm6dsx_i3c_ids);
33 	struct regmap *regmap;
34 
35 	regmap = devm_regmap_init_i3c(i3cdev, &st_lsm6dsx_i3c_regmap_config);
36 	if (IS_ERR(regmap)) {
37 		dev_err(&i3cdev->dev, "Failed to register i3c regmap %d\n",
38 			(int)PTR_ERR(regmap));
39 		return PTR_ERR(regmap);
40 	}
41 
42 	return st_lsm6dsx_probe(&i3cdev->dev, 0, (uintptr_t)id->data, regmap);
43 }
44 
45 static struct i3c_driver st_lsm6dsx_driver = {
46 	.driver = {
47 		.name = "st_lsm6dsx_i3c",
48 		.pm = &st_lsm6dsx_pm_ops,
49 	},
50 	.probe = st_lsm6dsx_i3c_probe,
51 	.id_table = st_lsm6dsx_i3c_ids,
52 };
53 module_i3c_driver(st_lsm6dsx_driver);
54 
55 MODULE_AUTHOR("Vitor Soares <vitor.soares@synopsys.com>");
56 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i3c driver");
57 MODULE_LICENSE("GPL v2");
58