tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * 3-axis accelerometer driver supporting following I2C Bosch-Sensortec chips:
3 * - BMC150
4 * - BMI055
5 * - BMA255
6 * - BMA250E
7 * - BMA222E
8 * - BMA280
9 *
10 * Copyright (c) 2014, Intel Corporation.
11 *
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms and conditions of the GNU General Public License,
14 * version 2, as published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * more details.
20 */
21
22#include <linux/device.h>
23#include <linux/mod_devicetable.h>
24#include <linux/i2c.h>
25#include <linux/module.h>
26#include <linux/acpi.h>
27#include <linux/regmap.h>
28
29#include "bmc150-accel.h"
30
31static int bmc150_accel_probe(struct i2c_client *client,
32 const struct i2c_device_id *id)
33{
34 struct regmap *regmap;
35 const char *name = NULL;
36 bool block_supported =
37 i2c_check_functionality(client->adapter, I2C_FUNC_I2C) ||
38 i2c_check_functionality(client->adapter,
39 I2C_FUNC_SMBUS_READ_I2C_BLOCK);
40
41 regmap = devm_regmap_init_i2c(client, &bmc150_regmap_conf);
42 if (IS_ERR(regmap)) {
43 dev_err(&client->dev, "Failed to initialize i2c regmap\n");
44 return PTR_ERR(regmap);
45 }
46
47 if (id)
48 name = id->name;
49
50 return bmc150_accel_core_probe(&client->dev, regmap, client->irq, name,
51 block_supported);
52}
53
54static int bmc150_accel_remove(struct i2c_client *client)
55{
56 return bmc150_accel_core_remove(&client->dev);
57}
58
59static const struct acpi_device_id bmc150_accel_acpi_match[] = {
60 {"BSBA0150", bmc150},
61 {"BMC150A", bmc150},
62 {"BMI055A", bmi055},
63 {"BMA0255", bma255},
64 {"BMA250E", bma250e},
65 {"BMA222E", bma222e},
66 {"BMA0280", bma280},
67 {"BOSC0200"},
68 { },
69};
70MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
71
72static const struct i2c_device_id bmc150_accel_id[] = {
73 {"bmc150_accel", bmc150},
74 {"bmi055_accel", bmi055},
75 {"bma255", bma255},
76 {"bma250e", bma250e},
77 {"bma222e", bma222e},
78 {"bma280", bma280},
79 {}
80};
81
82MODULE_DEVICE_TABLE(i2c, bmc150_accel_id);
83
84static const struct of_device_id bmc150_accel_of_match[] = {
85 { .compatible = "bosch,bmc150_accel" },
86 { .compatible = "bosch,bmi055_accel" },
87 { .compatible = "bosch,bma255" },
88 { .compatible = "bosch,bma250e" },
89 { .compatible = "bosch,bma222e" },
90 { .compatible = "bosch,bma280" },
91 { },
92};
93MODULE_DEVICE_TABLE(of, bmc150_accel_of_match);
94
95static struct i2c_driver bmc150_accel_driver = {
96 .driver = {
97 .name = "bmc150_accel_i2c",
98 .of_match_table = bmc150_accel_of_match,
99 .acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
100 .pm = &bmc150_accel_pm_ops,
101 },
102 .probe = bmc150_accel_probe,
103 .remove = bmc150_accel_remove,
104 .id_table = bmc150_accel_id,
105};
106module_i2c_driver(bmc150_accel_driver);
107
108MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
109MODULE_LICENSE("GPL v2");
110MODULE_DESCRIPTION("BMC150 I2C accelerometer driver");