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Thomas Gleixnerfda8d262019-05-28 09:57:06 -07001// SPDX-License-Identifier: GPL-2.0-only
Denis Cioccad6251162013-01-25 23:44:00 +00002/*
3 * STMicroelectronics accelerometers driver
4 *
5 * Copyright 2012-2013 STMicroelectronics Inc.
6 *
7 * Denis Ciocca <denis.ciocca@st.com>
Denis Cioccad6251162013-01-25 23:44:00 +00008 */
9
10#include <linux/kernel.h>
11#include <linux/module.h>
Jonathan Cameron9c6cd752021-06-08 18:51:49 +010012#include <linux/mod_devicetable.h>
Denis Cioccad6251162013-01-25 23:44:00 +000013#include <linux/spi/spi.h>
14#include <linux/iio/iio.h>
Denis Cioccad6251162013-01-25 23:44:00 +000015
16#include <linux/iio/common/st_sensors.h>
17#include <linux/iio/common/st_sensors_spi.h>
18#include "st_accel.h"
19
Lorenzo Bianconiff73e862017-06-27 00:53:43 +020020/*
21 * For new single-chip sensors use <device_name> as compatible string.
22 * For old single-chip devices keep <device_name>-accel to maintain
23 * compatibility
24 */
25static const struct of_device_id st_accel_of_match[] = {
26 {
27 /* An older compatible */
28 .compatible = "st,lis302dl-spi",
29 .data = LIS3LV02DL_ACCEL_DEV_NAME,
30 },
31 {
Lorenzo Bianconi2b96d662017-07-08 13:00:17 +020032 .compatible = "st,lis3lv02dl-accel",
33 .data = LIS3LV02DL_ACCEL_DEV_NAME,
34 },
35 {
Lorenzo Bianconiff73e862017-06-27 00:53:43 +020036 .compatible = "st,lis3dh-accel",
37 .data = LIS3DH_ACCEL_DEV_NAME,
38 },
39 {
40 .compatible = "st,lsm330d-accel",
41 .data = LSM330D_ACCEL_DEV_NAME,
42 },
43 {
44 .compatible = "st,lsm330dl-accel",
45 .data = LSM330DL_ACCEL_DEV_NAME,
46 },
47 {
48 .compatible = "st,lsm330dlc-accel",
49 .data = LSM330DLC_ACCEL_DEV_NAME,
50 },
51 {
52 .compatible = "st,lis331dlh-accel",
53 .data = LIS331DLH_ACCEL_DEV_NAME,
54 },
55 {
56 .compatible = "st,lsm330-accel",
57 .data = LSM330_ACCEL_DEV_NAME,
58 },
59 {
60 .compatible = "st,lsm303agr-accel",
61 .data = LSM303AGR_ACCEL_DEV_NAME,
62 },
63 {
64 .compatible = "st,lis2dh12-accel",
65 .data = LIS2DH12_ACCEL_DEV_NAME,
66 },
67 {
68 .compatible = "st,lis3l02dq",
69 .data = LIS3L02DQ_ACCEL_DEV_NAME,
70 },
71 {
72 .compatible = "st,lng2dm-accel",
73 .data = LNG2DM_ACCEL_DEV_NAME,
74 },
Lorenzo Bianconi2b96d662017-07-08 13:00:17 +020075 {
76 .compatible = "st,h3lis331dl-accel",
Lorenzo Bianconib30f1592017-07-08 13:00:18 +020077 .data = H3LIS331DL_ACCEL_DEV_NAME,
Lorenzo Bianconi2b96d662017-07-08 13:00:17 +020078 },
79 {
80 .compatible = "st,lis331dl-accel",
81 .data = LIS331DL_ACCEL_DEV_NAME,
82 },
Lorenzo Bianconif94124f2017-08-30 13:50:42 +020083 {
84 .compatible = "st,lis2dw12",
85 .data = LIS2DW12_ACCEL_DEV_NAME,
86 },
Lorenzo Bianconifea4d482017-09-17 18:17:11 +020087 {
88 .compatible = "st,lis3dhh",
89 .data = LIS3DHH_ACCEL_DEV_NAME,
90 },
Heiko Stuebner49b62372018-11-07 16:45:21 +010091 {
92 .compatible = "st,lis3de",
93 .data = LIS3DE_ACCEL_DEV_NAME,
94 },
Sicelo A. Mhlongo8a7449d2022-03-07 15:25:02 +020095 {
96 .compatible = "st,lis302dl",
97 .data = LIS302DL_ACCEL_DEV_NAME,
98 },
Lorenzo Bianconiff73e862017-06-27 00:53:43 +020099 {}
100};
101MODULE_DEVICE_TABLE(of, st_accel_of_match);
Lorenzo Bianconiff73e862017-06-27 00:53:43 +0200102
Denis Cioccad6251162013-01-25 23:44:00 +0000103static int st_accel_spi_probe(struct spi_device *spi)
104{
Denis Cioccafeba6b182019-07-18 15:53:48 -0700105 const struct st_sensor_settings *settings;
Denis Cioccad6251162013-01-25 23:44:00 +0000106 struct st_sensor_data *adata;
Denis Cioccafeba6b182019-07-18 15:53:48 -0700107 struct iio_dev *indio_dev;
Denis Cioccad6251162013-01-25 23:44:00 +0000108 int err;
109
Andy Shevchenkoefc78982019-12-16 19:38:52 +0200110 st_sensors_dev_name_probe(&spi->dev, spi->modalias, sizeof(spi->modalias));
Denis Cioccafeba6b182019-07-18 15:53:48 -0700111
112 settings = st_accel_get_settings(spi->modalias);
113 if (!settings) {
114 dev_err(&spi->dev, "device name %s not recognized.\n",
115 spi->modalias);
116 return -ENODEV;
117 }
118
Sachin Kamat6b7e0a92013-07-23 07:47:00 +0100119 indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adata));
120 if (!indio_dev)
121 return -ENOMEM;
Denis Cioccad6251162013-01-25 23:44:00 +0000122
123 adata = iio_priv(indio_dev);
Denis Cioccafeba6b182019-07-18 15:53:48 -0700124 adata->sensor_settings = (struct st_sensor_settings *)settings;
Denis Cioccad6251162013-01-25 23:44:00 +0000125
Denis Ciocca1ecd2452019-07-18 15:53:52 -0700126 err = st_sensors_spi_configure(indio_dev, spi);
127 if (err < 0)
128 return err;
Denis Cioccad6251162013-01-25 23:44:00 +0000129
Andy Shevchenko7db4f2c2021-04-14 22:54:51 +0300130 err = st_sensors_power_enable(indio_dev);
131 if (err)
Sachin Kamat6b7e0a92013-07-23 07:47:00 +0100132 return err;
Denis Cioccad6251162013-01-25 23:44:00 +0000133
Alexandru Ardelean5363c6c2021-08-23 14:22:02 +0300134 return st_accel_common_probe(indio_dev);
Denis Cioccad6251162013-01-25 23:44:00 +0000135}
136
Denis Cioccad6251162013-01-25 23:44:00 +0000137static const struct spi_device_id st_accel_id_table[] = {
Denis Cioccad6251162013-01-25 23:44:00 +0000138 { LIS3DH_ACCEL_DEV_NAME },
139 { LSM330D_ACCEL_DEV_NAME },
140 { LSM330DL_ACCEL_DEV_NAME },
141 { LSM330DLC_ACCEL_DEV_NAME },
142 { LIS331DLH_ACCEL_DEV_NAME },
Denis Cioccad6251162013-01-25 23:44:00 +0000143 { LSM330_ACCEL_DEV_NAME },
Giuseppe Barbaddc05fa2015-07-21 10:35:44 +0200144 { LSM303AGR_ACCEL_DEV_NAME },
Giuseppe Barba34dc5782015-11-12 08:36:49 +0100145 { LIS2DH12_ACCEL_DEV_NAME },
Jonathan Cameron4e68cfb2016-05-22 20:39:29 +0100146 { LIS3L02DQ_ACCEL_DEV_NAME },
Lorenzo Bianconidcdb0a72016-10-25 23:09:03 +0200147 { LNG2DM_ACCEL_DEV_NAME },
Lorenzo Bianconib30f1592017-07-08 13:00:18 +0200148 { H3LIS331DL_ACCEL_DEV_NAME },
Lorenzo Bianconi2b96d662017-07-08 13:00:17 +0200149 { LIS331DL_ACCEL_DEV_NAME },
150 { LIS3LV02DL_ACCEL_DEV_NAME },
Lorenzo Bianconif94124f2017-08-30 13:50:42 +0200151 { LIS2DW12_ACCEL_DEV_NAME },
Lorenzo Bianconifea4d482017-09-17 18:17:11 +0200152 { LIS3DHH_ACCEL_DEV_NAME },
Heiko Stuebner49b62372018-11-07 16:45:21 +0100153 { LIS3DE_ACCEL_DEV_NAME },
Sicelo A. Mhlongo8a7449d2022-03-07 15:25:02 +0200154 { LIS302DL_ACCEL_DEV_NAME },
Denis Cioccad6251162013-01-25 23:44:00 +0000155 {},
156};
157MODULE_DEVICE_TABLE(spi, st_accel_id_table);
158
159static struct spi_driver st_accel_driver = {
160 .driver = {
Denis Cioccad6251162013-01-25 23:44:00 +0000161 .name = "st-accel-spi",
Andy Shevchenkoecb27c52019-12-16 19:38:53 +0200162 .of_match_table = st_accel_of_match,
Denis Cioccad6251162013-01-25 23:44:00 +0000163 },
164 .probe = st_accel_spi_probe,
Denis Cioccad6251162013-01-25 23:44:00 +0000165 .id_table = st_accel_id_table,
166};
167module_spi_driver(st_accel_driver);
168
169MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
170MODULE_DESCRIPTION("STMicroelectronics accelerometers spi driver");
171MODULE_LICENSE("GPL v2");
Jonathan Cameron0805b512022-01-16 18:05:35 +0000172MODULE_IMPORT_NS(IIO_ST_SENSORS);