1fda8d26eSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
27be56a8fSDenis Ciocca /*
37be56a8fSDenis Ciocca * STMicroelectronics gyroscopes driver
47be56a8fSDenis Ciocca *
57be56a8fSDenis Ciocca * Copyright 2012-2013 STMicroelectronics Inc.
67be56a8fSDenis Ciocca *
77be56a8fSDenis Ciocca * Denis Ciocca <denis.ciocca@st.com>
87be56a8fSDenis Ciocca */
97be56a8fSDenis Ciocca
107be56a8fSDenis Ciocca #include <linux/kernel.h>
117be56a8fSDenis Ciocca #include <linux/module.h>
129c6cd755SJonathan Cameron #include <linux/mod_devicetable.h>
137be56a8fSDenis Ciocca #include <linux/spi/spi.h>
147be56a8fSDenis Ciocca #include <linux/iio/iio.h>
157be56a8fSDenis Ciocca
167be56a8fSDenis Ciocca #include <linux/iio/common/st_sensors.h>
177be56a8fSDenis Ciocca #include <linux/iio/common/st_sensors_spi.h>
187be56a8fSDenis Ciocca #include "st_gyro.h"
197be56a8fSDenis Ciocca
20794694ceSLorenzo Bianconi /*
21794694ceSLorenzo Bianconi * For new single-chip sensors use <device_name> as compatible string.
22794694ceSLorenzo Bianconi * For old single-chip devices keep <device_name>-gyro to maintain
23794694ceSLorenzo Bianconi * compatibility
24794694ceSLorenzo Bianconi */
25794694ceSLorenzo Bianconi static const struct of_device_id st_gyro_of_match[] = {
26794694ceSLorenzo Bianconi {
27794694ceSLorenzo Bianconi .compatible = "st,l3g4200d-gyro",
28794694ceSLorenzo Bianconi .data = L3G4200D_GYRO_DEV_NAME,
29794694ceSLorenzo Bianconi },
30794694ceSLorenzo Bianconi {
31794694ceSLorenzo Bianconi .compatible = "st,lsm330d-gyro",
32794694ceSLorenzo Bianconi .data = LSM330D_GYRO_DEV_NAME,
33794694ceSLorenzo Bianconi },
34794694ceSLorenzo Bianconi {
35794694ceSLorenzo Bianconi .compatible = "st,lsm330dl-gyro",
36794694ceSLorenzo Bianconi .data = LSM330DL_GYRO_DEV_NAME,
37794694ceSLorenzo Bianconi },
38794694ceSLorenzo Bianconi {
39794694ceSLorenzo Bianconi .compatible = "st,lsm330dlc-gyro",
40794694ceSLorenzo Bianconi .data = LSM330DLC_GYRO_DEV_NAME,
41794694ceSLorenzo Bianconi },
42794694ceSLorenzo Bianconi {
43794694ceSLorenzo Bianconi .compatible = "st,l3gd20-gyro",
44794694ceSLorenzo Bianconi .data = L3GD20_GYRO_DEV_NAME,
45794694ceSLorenzo Bianconi },
46794694ceSLorenzo Bianconi {
47794694ceSLorenzo Bianconi .compatible = "st,l3gd20h-gyro",
48794694ceSLorenzo Bianconi .data = L3GD20H_GYRO_DEV_NAME,
49794694ceSLorenzo Bianconi },
50794694ceSLorenzo Bianconi {
51794694ceSLorenzo Bianconi .compatible = "st,l3g4is-gyro",
52794694ceSLorenzo Bianconi .data = L3G4IS_GYRO_DEV_NAME,
53794694ceSLorenzo Bianconi },
54794694ceSLorenzo Bianconi {
55794694ceSLorenzo Bianconi .compatible = "st,lsm330-gyro",
56794694ceSLorenzo Bianconi .data = LSM330_GYRO_DEV_NAME,
57794694ceSLorenzo Bianconi },
58794694ceSLorenzo Bianconi {
59794694ceSLorenzo Bianconi .compatible = "st,lsm9ds0-gyro",
60794694ceSLorenzo Bianconi .data = LSM9DS0_GYRO_DEV_NAME,
61794694ceSLorenzo Bianconi },
62794694ceSLorenzo Bianconi {},
63794694ceSLorenzo Bianconi };
64794694ceSLorenzo Bianconi MODULE_DEVICE_TABLE(of, st_gyro_of_match);
65794694ceSLorenzo Bianconi
st_gyro_spi_probe(struct spi_device * spi)667be56a8fSDenis Ciocca static int st_gyro_spi_probe(struct spi_device *spi)
677be56a8fSDenis Ciocca {
683c05484cSDenis Ciocca const struct st_sensor_settings *settings;
697be56a8fSDenis Ciocca struct st_sensor_data *gdata;
703c05484cSDenis Ciocca struct iio_dev *indio_dev;
717be56a8fSDenis Ciocca int err;
727be56a8fSDenis Ciocca
73efc78983SAndy Shevchenko st_sensors_dev_name_probe(&spi->dev, spi->modalias, sizeof(spi->modalias));
743c05484cSDenis Ciocca
753c05484cSDenis Ciocca settings = st_gyro_get_settings(spi->modalias);
763c05484cSDenis Ciocca if (!settings) {
773c05484cSDenis Ciocca dev_err(&spi->dev, "device name %s not recognized.\n",
783c05484cSDenis Ciocca spi->modalias);
793c05484cSDenis Ciocca return -ENODEV;
803c05484cSDenis Ciocca }
813c05484cSDenis Ciocca
827a842ed6SSachin Kamat indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*gdata));
837a842ed6SSachin Kamat if (!indio_dev)
847a842ed6SSachin Kamat return -ENOMEM;
857be56a8fSDenis Ciocca
867be56a8fSDenis Ciocca gdata = iio_priv(indio_dev);
873c05484cSDenis Ciocca gdata->sensor_settings = (struct st_sensor_settings *)settings;
887be56a8fSDenis Ciocca
891ecd245eSDenis Ciocca err = st_sensors_spi_configure(indio_dev, spi);
901ecd245eSDenis Ciocca if (err < 0)
911ecd245eSDenis Ciocca return err;
927be56a8fSDenis Ciocca
937db4f2caSAndy Shevchenko err = st_sensors_power_enable(indio_dev);
947db4f2caSAndy Shevchenko if (err)
957a842ed6SSachin Kamat return err;
967be56a8fSDenis Ciocca
975363c6c1SAlexandru Ardelean return st_gyro_common_probe(indio_dev);
987be56a8fSDenis Ciocca }
997be56a8fSDenis Ciocca
1007be56a8fSDenis Ciocca static const struct spi_device_id st_gyro_id_table[] = {
1017be56a8fSDenis Ciocca { L3G4200D_GYRO_DEV_NAME },
1027be56a8fSDenis Ciocca { LSM330D_GYRO_DEV_NAME },
1037be56a8fSDenis Ciocca { LSM330DL_GYRO_DEV_NAME },
1047be56a8fSDenis Ciocca { LSM330DLC_GYRO_DEV_NAME },
1057be56a8fSDenis Ciocca { L3GD20_GYRO_DEV_NAME },
10645a4e422SLorenzo Bianconi { L3GD20H_GYRO_DEV_NAME },
1077be56a8fSDenis Ciocca { L3G4IS_GYRO_DEV_NAME },
1087be56a8fSDenis Ciocca { LSM330_GYRO_DEV_NAME },
10941c128cbSCrestez Dan Leonard { LSM9DS0_GYRO_DEV_NAME },
1107be56a8fSDenis Ciocca {},
1117be56a8fSDenis Ciocca };
1127be56a8fSDenis Ciocca MODULE_DEVICE_TABLE(spi, st_gyro_id_table);
1137be56a8fSDenis Ciocca
1147be56a8fSDenis Ciocca static struct spi_driver st_gyro_driver = {
1157be56a8fSDenis Ciocca .driver = {
1167be56a8fSDenis Ciocca .name = "st-gyro-spi",
117ecb27c5eSAndy Shevchenko .of_match_table = st_gyro_of_match,
1187be56a8fSDenis Ciocca },
1197be56a8fSDenis Ciocca .probe = st_gyro_spi_probe,
1207be56a8fSDenis Ciocca .id_table = st_gyro_id_table,
1217be56a8fSDenis Ciocca };
1227be56a8fSDenis Ciocca module_spi_driver(st_gyro_driver);
1237be56a8fSDenis Ciocca
1247be56a8fSDenis Ciocca MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
1257be56a8fSDenis Ciocca MODULE_DESCRIPTION("STMicroelectronics gyroscopes spi driver");
1267be56a8fSDenis Ciocca MODULE_LICENSE("GPL v2");
127*0805b512SJonathan Cameron MODULE_IMPORT_NS(IIO_ST_SENSORS);
128