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 { },
68};
69MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
70
71static const struct i2c_device_id bmc150_accel_id[] = {
72 {"bmc150_accel", bmc150},
73 {"bmi055_accel", bmi055},
74 {"bma255", bma255},
75 {"bma250e", bma250e},
76 {"bma222e", bma222e},
77 {"bma280", bma280},
78 {}
79};
80
81MODULE_DEVICE_TABLE(i2c, bmc150_accel_id);
82
83static struct i2c_driver bmc150_accel_driver = {
84 .driver = {
85 .name = "bmc150_accel_i2c",
86 .acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
87 .pm = &bmc150_accel_pm_ops,
88 },
89 .probe = bmc150_accel_probe,
90 .remove = bmc150_accel_remove,
91 .id_table = bmc150_accel_id,
92};
93module_i2c_driver(bmc150_accel_driver);
94
95MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
96MODULE_LICENSE("GPL v2");
97MODULE_DESCRIPTION("BMC150 I2C accelerometer driver");