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 SPI Bosch-Sensortec accelerometer chip
3 * Copyright © 2015 Pengutronix, Markus Pargmann <mpa@pengutronix.de>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, see <http://www.gnu.org/licenses/>.
17 */
18
19#include <linux/device.h>
20#include <linux/mod_devicetable.h>
21#include <linux/module.h>
22#include <linux/acpi.h>
23#include <linux/regmap.h>
24#include <linux/spi/spi.h>
25
26#include "bmc150-accel.h"
27
28static const struct regmap_config bmc150_spi_regmap_conf = {
29 .reg_bits = 8,
30 .val_bits = 8,
31 .max_register = 0x3f,
32};
33
34static int bmc150_accel_probe(struct spi_device *spi)
35{
36 struct regmap *regmap;
37 const struct spi_device_id *id = spi_get_device_id(spi);
38
39 regmap = devm_regmap_init_spi(spi, &bmc150_spi_regmap_conf);
40 if (IS_ERR(regmap)) {
41 dev_err(&spi->dev, "Failed to initialize spi regmap\n");
42 return PTR_ERR(regmap);
43 }
44
45 return bmc150_accel_core_probe(&spi->dev, regmap, spi->irq, id->name,
46 true);
47}
48
49static int bmc150_accel_remove(struct spi_device *spi)
50{
51 return bmc150_accel_core_remove(&spi->dev);
52}
53
54static const struct acpi_device_id bmc150_accel_acpi_match[] = {
55 {"BSBA0150", bmc150},
56 {"BMC150A", bmc150},
57 {"BMI055A", bmi055},
58 {"BMA0255", bma255},
59 {"BMA250E", bma250e},
60 {"BMA222E", bma222e},
61 {"BMA0280", bma280},
62 { },
63};
64MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
65
66static const struct spi_device_id bmc150_accel_id[] = {
67 {"bmc150_accel", bmc150},
68 {"bmi055_accel", bmi055},
69 {"bma255", bma255},
70 {"bma250e", bma250e},
71 {"bma222e", bma222e},
72 {"bma280", bma280},
73 {}
74};
75MODULE_DEVICE_TABLE(spi, bmc150_accel_id);
76
77static struct spi_driver bmc150_accel_driver = {
78 .driver = {
79 .name = "bmc150_accel_spi",
80 .acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
81 .pm = &bmc150_accel_pm_ops,
82 },
83 .probe = bmc150_accel_probe,
84 .remove = bmc150_accel_remove,
85 .id_table = bmc150_accel_id,
86};
87module_spi_driver(bmc150_accel_driver);
88
89MODULE_AUTHOR("Markus Pargmann <mpa@pengutronix.de>");
90MODULE_LICENSE("GPL v2");
91MODULE_DESCRIPTION("BMC150 SPI accelerometer driver");