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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * STMicroelectronics LSM9DS0 IMU driver4 *5 * Copyright (C) 2021, Intel Corporation6 *7 * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>8 */9 10#include <linux/device.h>11#include <linux/err.h>12#include <linux/gfp_types.h>13#include <linux/i2c.h>14#include <linux/module.h>15#include <linux/mod_devicetable.h>16#include <linux/regmap.h>17 18#include <linux/iio/common/st_sensors_i2c.h>19 20#include "st_lsm9ds0.h"21 22static const struct of_device_id st_lsm9ds0_of_match[] = {23 {24 .compatible = "st,lsm303d-imu",25 .data = LSM303D_IMU_DEV_NAME,26 },27 {28 .compatible = "st,lsm9ds0-imu",29 .data = LSM9DS0_IMU_DEV_NAME,30 },31 {}32};33MODULE_DEVICE_TABLE(of, st_lsm9ds0_of_match);34 35static const struct i2c_device_id st_lsm9ds0_id_table[] = {36 { LSM303D_IMU_DEV_NAME },37 { LSM9DS0_IMU_DEV_NAME },38 {}39};40MODULE_DEVICE_TABLE(i2c, st_lsm9ds0_id_table);41 42static const struct acpi_device_id st_lsm9ds0_acpi_match[] = {43 {"ACCL0001", (kernel_ulong_t)LSM303D_IMU_DEV_NAME},44 {}45};46MODULE_DEVICE_TABLE(acpi, st_lsm9ds0_acpi_match);47 48static const struct regmap_config st_lsm9ds0_regmap_config = {49 .reg_bits = 8,50 .val_bits = 8,51 .read_flag_mask = 0x80,52};53 54static int st_lsm9ds0_i2c_probe(struct i2c_client *client)55{56 const struct regmap_config *config = &st_lsm9ds0_regmap_config;57 struct device *dev = &client->dev;58 struct st_lsm9ds0 *lsm9ds0;59 struct regmap *regmap;60 61 st_sensors_dev_name_probe(dev, client->name, sizeof(client->name));62 63 lsm9ds0 = devm_kzalloc(dev, sizeof(*lsm9ds0), GFP_KERNEL);64 if (!lsm9ds0)65 return -ENOMEM;66 67 lsm9ds0->dev = dev;68 lsm9ds0->name = client->name;69 lsm9ds0->irq = client->irq;70 71 regmap = devm_regmap_init_i2c(client, config);72 if (IS_ERR(regmap))73 return PTR_ERR(regmap);74 75 i2c_set_clientdata(client, lsm9ds0);76 77 return st_lsm9ds0_probe(lsm9ds0, regmap);78}79 80static struct i2c_driver st_lsm9ds0_driver = {81 .driver = {82 .name = "st-lsm9ds0-i2c",83 .of_match_table = st_lsm9ds0_of_match,84 .acpi_match_table = st_lsm9ds0_acpi_match,85 },86 .probe = st_lsm9ds0_i2c_probe,87 .id_table = st_lsm9ds0_id_table,88};89module_i2c_driver(st_lsm9ds0_driver);90 91MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");92MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU I2C driver");93MODULE_LICENSE("GPL v2");94MODULE_IMPORT_NS(IIO_ST_SENSORS);95