1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * 3-axis accelerometer driver supporting following I2C Bosch-Sensortec chips:
4  *  - BMC150
5  *  - BMI055
6  *  - BMA255
7  *  - BMA250E
8  *  - BMA222E
9  *  - BMA280
10  *
11  * Copyright (c) 2014, Intel Corporation.
12  */
13 
14 #include <linux/device.h>
15 #include <linux/mod_devicetable.h>
16 #include <linux/i2c.h>
17 #include <linux/module.h>
18 #include <linux/acpi.h>
19 #include <linux/regmap.h>
20 
21 #include "bmc150-accel.h"
22 
23 static int bmc150_accel_probe(struct i2c_client *client,
24 			      const struct i2c_device_id *id)
25 {
26 	struct regmap *regmap;
27 	const char *name = NULL;
28 	bool block_supported =
29 		i2c_check_functionality(client->adapter, I2C_FUNC_I2C) ||
30 		i2c_check_functionality(client->adapter,
31 					I2C_FUNC_SMBUS_READ_I2C_BLOCK);
32 
33 	regmap = devm_regmap_init_i2c(client, &bmc150_regmap_conf);
34 	if (IS_ERR(regmap)) {
35 		dev_err(&client->dev, "Failed to initialize i2c regmap\n");
36 		return PTR_ERR(regmap);
37 	}
38 
39 	if (id)
40 		name = id->name;
41 
42 	return bmc150_accel_core_probe(&client->dev, regmap, client->irq, name,
43 				       block_supported);
44 }
45 
46 static int bmc150_accel_remove(struct i2c_client *client)
47 {
48 	return bmc150_accel_core_remove(&client->dev);
49 }
50 
51 static const struct acpi_device_id bmc150_accel_acpi_match[] = {
52 	{"BSBA0150",	bmc150},
53 	{"BMC150A",	bmc150},
54 	{"BMI055A",	bmi055},
55 	{"BMA0255",	bma255},
56 	{"BMA250E",	bma250e},
57 	{"BMA222E",	bma222e},
58 	{"BMA0280",	bma280},
59 	{"BOSC0200"},
60 	{ },
61 };
62 MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
63 
64 static const struct i2c_device_id bmc150_accel_id[] = {
65 	{"bmc150_accel",	bmc150},
66 	{"bmi055_accel",	bmi055},
67 	{"bma255",		bma255},
68 	{"bma250e",		bma250e},
69 	{"bma222e",		bma222e},
70 	{"bma280",		bma280},
71 	{}
72 };
73 
74 MODULE_DEVICE_TABLE(i2c, bmc150_accel_id);
75 
76 static const struct of_device_id bmc150_accel_of_match[] = {
77 	{ .compatible = "bosch,bmc150_accel" },
78 	{ .compatible = "bosch,bmi055_accel" },
79 	{ .compatible = "bosch,bma255" },
80 	{ .compatible = "bosch,bma250e" },
81 	{ .compatible = "bosch,bma222e" },
82 	{ .compatible = "bosch,bma280" },
83 	{ },
84 };
85 MODULE_DEVICE_TABLE(of, bmc150_accel_of_match);
86 
87 static struct i2c_driver bmc150_accel_driver = {
88 	.driver = {
89 		.name	= "bmc150_accel_i2c",
90 		.of_match_table = bmc150_accel_of_match,
91 		.acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
92 		.pm	= &bmc150_accel_pm_ops,
93 	},
94 	.probe		= bmc150_accel_probe,
95 	.remove		= bmc150_accel_remove,
96 	.id_table	= bmc150_accel_id,
97 };
98 module_i2c_driver(bmc150_accel_driver);
99 
100 MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
101 MODULE_LICENSE("GPL v2");
102 MODULE_DESCRIPTION("BMC150 I2C accelerometer driver");
103