1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * STMicroelectronics accelerometers driver 4 * 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/i2c.h> 14 #include <linux/iio/iio.h> 15 16 #include <linux/iio/common/st_sensors_i2c.h> 17 #include "st_accel.h" 18 19 static const struct of_device_id st_accel_of_match[] = { 20 { 21 /* An older compatible */ 22 .compatible = "st,lis3lv02d", 23 .data = LIS3LV02DL_ACCEL_DEV_NAME, 24 }, 25 { 26 .compatible = "st,lis3lv02dl-accel", 27 .data = LIS3LV02DL_ACCEL_DEV_NAME, 28 }, 29 { 30 .compatible = "st,lsm303dlh-accel", 31 .data = LSM303DLH_ACCEL_DEV_NAME, 32 }, 33 { 34 .compatible = "st,lsm303dlhc-accel", 35 .data = LSM303DLHC_ACCEL_DEV_NAME, 36 }, 37 { 38 .compatible = "st,lis3dh-accel", 39 .data = LIS3DH_ACCEL_DEV_NAME, 40 }, 41 { 42 .compatible = "st,lsm330d-accel", 43 .data = LSM330D_ACCEL_DEV_NAME, 44 }, 45 { 46 .compatible = "st,lsm330dl-accel", 47 .data = LSM330DL_ACCEL_DEV_NAME, 48 }, 49 { 50 .compatible = "st,lsm330dlc-accel", 51 .data = LSM330DLC_ACCEL_DEV_NAME, 52 }, 53 { 54 .compatible = "st,lis331dl-accel", 55 .data = LIS331DL_ACCEL_DEV_NAME, 56 }, 57 { 58 .compatible = "st,lis331dlh-accel", 59 .data = LIS331DLH_ACCEL_DEV_NAME, 60 }, 61 { 62 .compatible = "st,lsm303dl-accel", 63 .data = LSM303DL_ACCEL_DEV_NAME, 64 }, 65 { 66 .compatible = "st,lsm303dlm-accel", 67 .data = LSM303DLM_ACCEL_DEV_NAME, 68 }, 69 { 70 .compatible = "st,lsm330-accel", 71 .data = LSM330_ACCEL_DEV_NAME, 72 }, 73 { 74 .compatible = "st,lsm303agr-accel", 75 .data = LSM303AGR_ACCEL_DEV_NAME, 76 }, 77 { 78 .compatible = "st,lis2dh12-accel", 79 .data = LIS2DH12_ACCEL_DEV_NAME, 80 }, 81 { 82 .compatible = "st,h3lis331dl-accel", 83 .data = H3LIS331DL_ACCEL_DEV_NAME, 84 }, 85 { 86 .compatible = "st,lis3l02dq", 87 .data = LIS3L02DQ_ACCEL_DEV_NAME, 88 }, 89 { 90 .compatible = "st,lng2dm-accel", 91 .data = LNG2DM_ACCEL_DEV_NAME, 92 }, 93 { 94 .compatible = "st,lis2dw12", 95 .data = LIS2DW12_ACCEL_DEV_NAME, 96 }, 97 { 98 .compatible = "st,lis3de", 99 .data = LIS3DE_ACCEL_DEV_NAME, 100 }, 101 { 102 .compatible = "st,lis2de12", 103 .data = LIS2DE12_ACCEL_DEV_NAME, 104 }, 105 { 106 .compatible = "st,lis2ds12", 107 .data = LIS2DS12_ACCEL_DEV_NAME, 108 }, 109 { 110 .compatible = "st,lis2hh12", 111 .data = LIS2HH12_ACCEL_DEV_NAME, 112 }, 113 { 114 .compatible = "st,lis302dl", 115 .data = LIS302DL_ACCEL_DEV_NAME, 116 }, 117 { 118 .compatible = "st,lsm303c-accel", 119 .data = LSM303C_ACCEL_DEV_NAME, 120 }, 121 { 122 .compatible = "silan,sc7a20", 123 .data = SC7A20_ACCEL_DEV_NAME, 124 }, 125 { 126 .compatible = "st,iis328dq", 127 .data = IIS328DQ_ACCEL_DEV_NAME, 128 }, 129 {}, 130 }; 131 MODULE_DEVICE_TABLE(of, st_accel_of_match); 132 133 static const struct acpi_device_id st_accel_acpi_match[] = { 134 {"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME}, 135 {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME}, 136 { }, 137 }; 138 MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match); 139 140 static const struct i2c_device_id st_accel_id_table[] = { 141 { LSM303DLH_ACCEL_DEV_NAME }, 142 { LSM303DLHC_ACCEL_DEV_NAME }, 143 { LIS3DH_ACCEL_DEV_NAME }, 144 { LSM330D_ACCEL_DEV_NAME }, 145 { LSM330DL_ACCEL_DEV_NAME }, 146 { LSM330DLC_ACCEL_DEV_NAME }, 147 { LIS331DLH_ACCEL_DEV_NAME }, 148 { LSM303DL_ACCEL_DEV_NAME }, 149 { LSM303DLM_ACCEL_DEV_NAME }, 150 { LSM330_ACCEL_DEV_NAME }, 151 { LSM303AGR_ACCEL_DEV_NAME }, 152 { LIS2DH12_ACCEL_DEV_NAME }, 153 { LIS3L02DQ_ACCEL_DEV_NAME }, 154 { LNG2DM_ACCEL_DEV_NAME }, 155 { H3LIS331DL_ACCEL_DEV_NAME }, 156 { LIS331DL_ACCEL_DEV_NAME }, 157 { LIS3LV02DL_ACCEL_DEV_NAME }, 158 { LIS2DW12_ACCEL_DEV_NAME }, 159 { LIS3DE_ACCEL_DEV_NAME }, 160 { LIS2DE12_ACCEL_DEV_NAME }, 161 { LIS2DS12_ACCEL_DEV_NAME }, 162 { LIS2HH12_ACCEL_DEV_NAME }, 163 { LIS302DL_ACCEL_DEV_NAME }, 164 { LSM303C_ACCEL_DEV_NAME }, 165 { SC7A20_ACCEL_DEV_NAME }, 166 { IIS328DQ_ACCEL_DEV_NAME }, 167 {}, 168 }; 169 MODULE_DEVICE_TABLE(i2c, st_accel_id_table); 170 171 static int st_accel_i2c_probe(struct i2c_client *client) 172 { 173 const struct st_sensor_settings *settings; 174 struct st_sensor_data *adata; 175 struct iio_dev *indio_dev; 176 int ret; 177 178 st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name)); 179 180 settings = st_accel_get_settings(client->name); 181 if (!settings) { 182 dev_err(&client->dev, "device name %s not recognized.\n", 183 client->name); 184 return -ENODEV; 185 } 186 187 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata)); 188 if (!indio_dev) 189 return -ENOMEM; 190 191 adata = iio_priv(indio_dev); 192 adata->sensor_settings = (struct st_sensor_settings *)settings; 193 194 ret = st_sensors_i2c_configure(indio_dev, client); 195 if (ret < 0) 196 return ret; 197 198 ret = st_sensors_power_enable(indio_dev); 199 if (ret) 200 return ret; 201 202 return st_accel_common_probe(indio_dev); 203 } 204 205 static struct i2c_driver st_accel_driver = { 206 .driver = { 207 .name = "st-accel-i2c", 208 .of_match_table = st_accel_of_match, 209 .acpi_match_table = st_accel_acpi_match, 210 }, 211 .probe = st_accel_i2c_probe, 212 .id_table = st_accel_id_table, 213 }; 214 module_i2c_driver(st_accel_driver); 215 216 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 217 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver"); 218 MODULE_LICENSE("GPL v2"); 219 MODULE_IMPORT_NS(IIO_ST_SENSORS); 220