1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * STMicroelectronics st_lsm6dsx i2c driver 4 * 5 * Copyright 2016 STMicroelectronics Inc. 6 * 7 * Lorenzo Bianconi <lorenzo.bianconi@st.com> 8 * Denis Ciocca <denis.ciocca@st.com> 9 */ 10 11 #include <linux/kernel.h> 12 #include <linux/module.h> 13 #include <linux/i2c.h> 14 #include <linux/slab.h> 15 #include <linux/regmap.h> 16 17 #include "st_lsm6dsx.h" 18 19 static const struct regmap_config st_lsm6dsx_i2c_regmap_config = { 20 .reg_bits = 8, 21 .val_bits = 8, 22 }; 23 24 static int st_lsm6dsx_i2c_probe(struct i2c_client *client) 25 { 26 int hw_id; 27 struct regmap *regmap; 28 29 hw_id = (kernel_ulong_t)device_get_match_data(&client->dev); 30 if (!hw_id) 31 hw_id = i2c_client_get_device_id(client)->driver_data; 32 if (!hw_id) 33 return -EINVAL; 34 35 regmap = devm_regmap_init_i2c(client, &st_lsm6dsx_i2c_regmap_config); 36 if (IS_ERR(regmap)) { 37 dev_err(&client->dev, "Failed to register i2c regmap %ld\n", PTR_ERR(regmap)); 38 return PTR_ERR(regmap); 39 } 40 41 return st_lsm6dsx_probe(&client->dev, client->irq, hw_id, regmap); 42 } 43 44 static const struct of_device_id st_lsm6dsx_i2c_of_match[] = { 45 { 46 .compatible = "st,lsm6ds3", 47 .data = (void *)ST_LSM6DS3_ID, 48 }, 49 { 50 .compatible = "st,lsm6ds3h", 51 .data = (void *)ST_LSM6DS3H_ID, 52 }, 53 { 54 .compatible = "st,lsm6dsl", 55 .data = (void *)ST_LSM6DSL_ID, 56 }, 57 { 58 .compatible = "st,lsm6dsm", 59 .data = (void *)ST_LSM6DSM_ID, 60 }, 61 { 62 .compatible = "st,ism330dlc", 63 .data = (void *)ST_ISM330DLC_ID, 64 }, 65 { 66 .compatible = "st,lsm6dso", 67 .data = (void *)ST_LSM6DSO_ID, 68 }, 69 { 70 .compatible = "st,asm330lhh", 71 .data = (void *)ST_ASM330LHH_ID, 72 }, 73 { 74 .compatible = "st,lsm6dsox", 75 .data = (void *)ST_LSM6DSOX_ID, 76 }, 77 { 78 .compatible = "st,lsm6dsr", 79 .data = (void *)ST_LSM6DSR_ID, 80 }, 81 { 82 .compatible = "st,lsm6ds3tr-c", 83 .data = (void *)ST_LSM6DS3TRC_ID, 84 }, 85 { 86 .compatible = "st,ism330dhcx", 87 .data = (void *)ST_ISM330DHCX_ID, 88 }, 89 { 90 .compatible = "st,lsm9ds1-imu", 91 .data = (void *)ST_LSM9DS1_ID, 92 }, 93 { 94 .compatible = "st,lsm6ds0", 95 .data = (void *)ST_LSM6DS0_ID, 96 }, 97 { 98 .compatible = "st,lsm6dsrx", 99 .data = (void *)ST_LSM6DSRX_ID, 100 }, 101 { 102 .compatible = "st,lsm6dst", 103 .data = (void *)ST_LSM6DST_ID, 104 }, 105 { 106 .compatible = "st,lsm6dsop", 107 .data = (void *)ST_LSM6DSOP_ID, 108 }, 109 { 110 .compatible = "st,asm330lhhx", 111 .data = (void *)ST_ASM330LHHX_ID, 112 }, 113 { 114 .compatible = "st,lsm6dstx", 115 .data = (void *)ST_LSM6DSTX_ID, 116 }, 117 { 118 .compatible = "st,lsm6dsv", 119 .data = (void *)ST_LSM6DSV_ID, 120 }, 121 { 122 .compatible = "st,lsm6dsv16x", 123 .data = (void *)ST_LSM6DSV16X_ID, 124 }, 125 { 126 .compatible = "st,lsm6dso16is", 127 .data = (void *)ST_LSM6DSO16IS_ID, 128 }, 129 { 130 .compatible = "st,ism330is", 131 .data = (void *)ST_ISM330IS_ID, 132 }, 133 { 134 .compatible = "st,asm330lhb", 135 .data = (void *)ST_ASM330LHB_ID, 136 }, 137 {}, 138 }; 139 MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match); 140 141 static const struct acpi_device_id st_lsm6dsx_i2c_acpi_match[] = { 142 { "SMO8B30", ST_LSM6DS3TRC_ID, }, 143 {} 144 }; 145 MODULE_DEVICE_TABLE(acpi, st_lsm6dsx_i2c_acpi_match); 146 147 static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = { 148 { ST_LSM6DS3_DEV_NAME, ST_LSM6DS3_ID }, 149 { ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID }, 150 { ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID }, 151 { ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID }, 152 { ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID }, 153 { ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID }, 154 { ST_ASM330LHH_DEV_NAME, ST_ASM330LHH_ID }, 155 { ST_LSM6DSOX_DEV_NAME, ST_LSM6DSOX_ID }, 156 { ST_LSM6DSR_DEV_NAME, ST_LSM6DSR_ID }, 157 { ST_LSM6DS3TRC_DEV_NAME, ST_LSM6DS3TRC_ID }, 158 { ST_ISM330DHCX_DEV_NAME, ST_ISM330DHCX_ID }, 159 { ST_LSM9DS1_DEV_NAME, ST_LSM9DS1_ID }, 160 { ST_LSM6DS0_DEV_NAME, ST_LSM6DS0_ID }, 161 { ST_LSM6DSRX_DEV_NAME, ST_LSM6DSRX_ID }, 162 { ST_LSM6DST_DEV_NAME, ST_LSM6DST_ID }, 163 { ST_LSM6DSOP_DEV_NAME, ST_LSM6DSOP_ID }, 164 { ST_ASM330LHHX_DEV_NAME, ST_ASM330LHHX_ID }, 165 { ST_LSM6DSTX_DEV_NAME, ST_LSM6DSTX_ID }, 166 { ST_LSM6DSV_DEV_NAME, ST_LSM6DSV_ID }, 167 { ST_LSM6DSV16X_DEV_NAME, ST_LSM6DSV16X_ID }, 168 { ST_LSM6DSO16IS_DEV_NAME, ST_LSM6DSO16IS_ID }, 169 { ST_ISM330IS_DEV_NAME, ST_ISM330IS_ID }, 170 { ST_ASM330LHB_DEV_NAME, ST_ASM330LHB_ID }, 171 {}, 172 }; 173 MODULE_DEVICE_TABLE(i2c, st_lsm6dsx_i2c_id_table); 174 175 static struct i2c_driver st_lsm6dsx_driver = { 176 .driver = { 177 .name = "st_lsm6dsx_i2c", 178 .pm = pm_sleep_ptr(&st_lsm6dsx_pm_ops), 179 .of_match_table = st_lsm6dsx_i2c_of_match, 180 .acpi_match_table = st_lsm6dsx_i2c_acpi_match, 181 }, 182 .probe = st_lsm6dsx_i2c_probe, 183 .id_table = st_lsm6dsx_i2c_id_table, 184 }; 185 module_i2c_driver(st_lsm6dsx_driver); 186 187 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>"); 188 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 189 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i2c driver"); 190 MODULE_LICENSE("GPL v2"); 191 MODULE_IMPORT_NS(IIO_LSM6DSX); 192