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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * STMicroelectronics accelerometers driver4 *5 * Copyright 2012-2013 STMicroelectronics Inc.6 *7 * Denis Ciocca <denis.ciocca@st.com>8 */9 10#include <linux/kernel.h>11#include <linux/module.h>12#include <linux/mod_devicetable.h>13#include <linux/spi/spi.h>14#include <linux/iio/iio.h>15 16#include <linux/iio/common/st_sensors.h>17#include <linux/iio/common/st_sensors_spi.h>18#include "st_accel.h"19 20/*21 * For new single-chip sensors use <device_name> as compatible string.22 * For old single-chip devices keep <device_name>-accel to maintain23 * compatibility24 */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 {32 .compatible = "st,lis3lv02dl-accel",33 .data = LIS3LV02DL_ACCEL_DEV_NAME,34 },35 {36 .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,lis2ds12",69 .data = LIS2DS12_ACCEL_DEV_NAME,70 },71 {72 .compatible = "st,lis3l02dq",73 .data = LIS3L02DQ_ACCEL_DEV_NAME,74 },75 {76 .compatible = "st,lng2dm-accel",77 .data = LNG2DM_ACCEL_DEV_NAME,78 },79 {80 .compatible = "st,h3lis331dl-accel",81 .data = H3LIS331DL_ACCEL_DEV_NAME,82 },83 {84 .compatible = "st,lis331dl-accel",85 .data = LIS331DL_ACCEL_DEV_NAME,86 },87 {88 .compatible = "st,lis2dw12",89 .data = LIS2DW12_ACCEL_DEV_NAME,90 },91 {92 .compatible = "st,lis3dhh",93 .data = LIS3DHH_ACCEL_DEV_NAME,94 },95 {96 .compatible = "st,lis3de",97 .data = LIS3DE_ACCEL_DEV_NAME,98 },99 {100 .compatible = "st,lis302dl",101 .data = LIS302DL_ACCEL_DEV_NAME,102 },103 {104 .compatible = "st,lsm303c-accel",105 .data = LSM303C_ACCEL_DEV_NAME,106 },107 {108 .compatible = "st,iis328dq",109 .data = IIS328DQ_ACCEL_DEV_NAME,110 },111 {}112};113MODULE_DEVICE_TABLE(of, st_accel_of_match);114 115static int st_accel_spi_probe(struct spi_device *spi)116{117 const struct st_sensor_settings *settings;118 struct st_sensor_data *adata;119 struct iio_dev *indio_dev;120 int err;121 122 st_sensors_dev_name_probe(&spi->dev, spi->modalias, sizeof(spi->modalias));123 124 settings = st_accel_get_settings(spi->modalias);125 if (!settings) {126 dev_err(&spi->dev, "device name %s not recognized.\n",127 spi->modalias);128 return -ENODEV;129 }130 131 indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adata));132 if (!indio_dev)133 return -ENOMEM;134 135 adata = iio_priv(indio_dev);136 adata->sensor_settings = (struct st_sensor_settings *)settings;137 138 err = st_sensors_spi_configure(indio_dev, spi);139 if (err < 0)140 return err;141 142 err = st_sensors_power_enable(indio_dev);143 if (err)144 return err;145 146 return st_accel_common_probe(indio_dev);147}148 149static const struct spi_device_id st_accel_id_table[] = {150 { LIS3DH_ACCEL_DEV_NAME },151 { LSM330D_ACCEL_DEV_NAME },152 { LSM330DL_ACCEL_DEV_NAME },153 { LSM330DLC_ACCEL_DEV_NAME },154 { LIS331DLH_ACCEL_DEV_NAME },155 { LSM330_ACCEL_DEV_NAME },156 { LSM303AGR_ACCEL_DEV_NAME },157 { LIS2DH12_ACCEL_DEV_NAME },158 { LIS2DS12_ACCEL_DEV_NAME },159 { LIS3L02DQ_ACCEL_DEV_NAME },160 { LNG2DM_ACCEL_DEV_NAME },161 { H3LIS331DL_ACCEL_DEV_NAME },162 { LIS331DL_ACCEL_DEV_NAME },163 { LIS3LV02DL_ACCEL_DEV_NAME },164 { LIS2DW12_ACCEL_DEV_NAME },165 { LIS3DHH_ACCEL_DEV_NAME },166 { LIS3DE_ACCEL_DEV_NAME },167 { LIS302DL_ACCEL_DEV_NAME },168 { LSM303C_ACCEL_DEV_NAME },169 { IIS328DQ_ACCEL_DEV_NAME },170 {},171};172MODULE_DEVICE_TABLE(spi, st_accel_id_table);173 174static struct spi_driver st_accel_driver = {175 .driver = {176 .name = "st-accel-spi",177 .of_match_table = st_accel_of_match,178 },179 .probe = st_accel_spi_probe,180 .id_table = st_accel_id_table,181};182module_spi_driver(st_accel_driver);183 184MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");185MODULE_DESCRIPTION("STMicroelectronics accelerometers spi driver");186MODULE_LICENSE("GPL v2");187MODULE_IMPORT_NS(IIO_ST_SENSORS);188