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/i2c.h> 13 #include <linux/iio/iio.h> 14 15 #include <linux/iio/common/st_sensors_i2c.h> 16 #include "st_accel.h" 17 18 static const struct of_device_id st_accel_of_match[] = { 19 { 20 /* An older compatible */ 21 .compatible = "st,lis3lv02d", 22 .data = LIS3LV02DL_ACCEL_DEV_NAME, 23 }, 24 { 25 .compatible = "st,lis3lv02dl-accel", 26 .data = LIS3LV02DL_ACCEL_DEV_NAME, 27 }, 28 { 29 .compatible = "st,lsm303dlh-accel", 30 .data = LSM303DLH_ACCEL_DEV_NAME, 31 }, 32 { 33 .compatible = "st,lsm303dlhc-accel", 34 .data = LSM303DLHC_ACCEL_DEV_NAME, 35 }, 36 { 37 .compatible = "st,lis3dh-accel", 38 .data = LIS3DH_ACCEL_DEV_NAME, 39 }, 40 { 41 .compatible = "st,lsm330d-accel", 42 .data = LSM330D_ACCEL_DEV_NAME, 43 }, 44 { 45 .compatible = "st,lsm330dl-accel", 46 .data = LSM330DL_ACCEL_DEV_NAME, 47 }, 48 { 49 .compatible = "st,lsm330dlc-accel", 50 .data = LSM330DLC_ACCEL_DEV_NAME, 51 }, 52 { 53 .compatible = "st,lis331dl-accel", 54 .data = LIS331DL_ACCEL_DEV_NAME, 55 }, 56 { 57 .compatible = "st,lis331dlh-accel", 58 .data = LIS331DLH_ACCEL_DEV_NAME, 59 }, 60 { 61 .compatible = "st,lsm303dl-accel", 62 .data = LSM303DL_ACCEL_DEV_NAME, 63 }, 64 { 65 .compatible = "st,lsm303dlm-accel", 66 .data = LSM303DLM_ACCEL_DEV_NAME, 67 }, 68 { 69 .compatible = "st,lsm330-accel", 70 .data = LSM330_ACCEL_DEV_NAME, 71 }, 72 { 73 .compatible = "st,lsm303agr-accel", 74 .data = LSM303AGR_ACCEL_DEV_NAME, 75 }, 76 { 77 .compatible = "st,lis2dh12-accel", 78 .data = LIS2DH12_ACCEL_DEV_NAME, 79 }, 80 { 81 .compatible = "st,h3lis331dl-accel", 82 .data = H3LIS331DL_ACCEL_DEV_NAME, 83 }, 84 { 85 .compatible = "st,lis3l02dq", 86 .data = LIS3L02DQ_ACCEL_DEV_NAME, 87 }, 88 { 89 .compatible = "st,lng2dm-accel", 90 .data = LNG2DM_ACCEL_DEV_NAME, 91 }, 92 { 93 .compatible = "st,lis2dw12", 94 .data = LIS2DW12_ACCEL_DEV_NAME, 95 }, 96 { 97 .compatible = "st,lis3de", 98 .data = LIS3DE_ACCEL_DEV_NAME, 99 }, 100 { 101 .compatible = "st,lis2de12", 102 .data = LIS2DE12_ACCEL_DEV_NAME, 103 }, 104 { 105 .compatible = "st,lis2ds12", 106 .data = LIS2DS12_ACCEL_DEV_NAME, 107 }, 108 { 109 .compatible = "st,lis2hh12", 110 .data = LIS2HH12_ACCEL_DEV_NAME, 111 }, 112 { 113 .compatible = "st,lis302dl", 114 .data = LIS302DL_ACCEL_DEV_NAME, 115 }, 116 { 117 .compatible = "st,lsm303c-accel", 118 .data = LSM303C_ACCEL_DEV_NAME, 119 }, 120 { 121 .compatible = "silan,sc7a20", 122 .data = SC7A20_ACCEL_DEV_NAME, 123 }, 124 { 125 .compatible = "st,iis328dq", 126 .data = IIS328DQ_ACCEL_DEV_NAME, 127 }, 128 { } 129 }; 130 MODULE_DEVICE_TABLE(of, st_accel_of_match); 131 132 static const struct acpi_device_id st_accel_acpi_match[] = { 133 {"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME}, 134 {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME}, 135 { } 136 }; 137 MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match); 138 139 static const struct i2c_device_id st_accel_id_table[] = { 140 { .name = LSM303DLH_ACCEL_DEV_NAME }, 141 { .name = LSM303DLHC_ACCEL_DEV_NAME }, 142 { .name = LIS3DH_ACCEL_DEV_NAME }, 143 { .name = LSM330D_ACCEL_DEV_NAME }, 144 { .name = LSM330DL_ACCEL_DEV_NAME }, 145 { .name = LSM330DLC_ACCEL_DEV_NAME }, 146 { .name = LIS331DLH_ACCEL_DEV_NAME }, 147 { .name = LSM303DL_ACCEL_DEV_NAME }, 148 { .name = LSM303DLM_ACCEL_DEV_NAME }, 149 { .name = LSM330_ACCEL_DEV_NAME }, 150 { .name = LSM303AGR_ACCEL_DEV_NAME }, 151 { .name = LIS2DH12_ACCEL_DEV_NAME }, 152 { .name = LIS3L02DQ_ACCEL_DEV_NAME }, 153 { .name = LNG2DM_ACCEL_DEV_NAME }, 154 { .name = H3LIS331DL_ACCEL_DEV_NAME }, 155 { .name = LIS331DL_ACCEL_DEV_NAME }, 156 { .name = LIS3LV02DL_ACCEL_DEV_NAME }, 157 { .name = LIS2DW12_ACCEL_DEV_NAME }, 158 { .name = LIS3DE_ACCEL_DEV_NAME }, 159 { .name = LIS2DE12_ACCEL_DEV_NAME }, 160 { .name = LIS2DS12_ACCEL_DEV_NAME }, 161 { .name = LIS2HH12_ACCEL_DEV_NAME }, 162 { .name = LIS302DL_ACCEL_DEV_NAME }, 163 { .name = LSM303C_ACCEL_DEV_NAME }, 164 { .name = SC7A20_ACCEL_DEV_NAME }, 165 { .name = IIS328DQ_ACCEL_DEV_NAME }, 166 { } 167 }; 168 MODULE_DEVICE_TABLE(i2c, st_accel_id_table); 169 170 static int st_accel_i2c_probe(struct i2c_client *client) 171 { 172 const struct st_sensor_settings *settings; 173 struct st_sensor_data *adata; 174 struct iio_dev *indio_dev; 175 int ret; 176 177 st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name)); 178 179 settings = st_accel_get_settings(client->name); 180 if (!settings) { 181 dev_err(&client->dev, "device name %s not recognized.\n", 182 client->name); 183 return -ENODEV; 184 } 185 186 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata)); 187 if (!indio_dev) 188 return -ENOMEM; 189 190 adata = iio_priv(indio_dev); 191 adata->sensor_settings = (struct st_sensor_settings *)settings; 192 193 ret = st_sensors_i2c_configure(indio_dev, client); 194 if (ret < 0) 195 return ret; 196 197 ret = st_sensors_power_enable(indio_dev); 198 if (ret) 199 return ret; 200 201 return st_accel_common_probe(indio_dev); 202 } 203 204 static struct i2c_driver st_accel_driver = { 205 .driver = { 206 .name = "st-accel-i2c", 207 .of_match_table = st_accel_of_match, 208 .acpi_match_table = st_accel_acpi_match, 209 }, 210 .probe = st_accel_i2c_probe, 211 .id_table = st_accel_id_table, 212 }; 213 module_i2c_driver(st_accel_driver); 214 215 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 216 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver"); 217 MODULE_LICENSE("GPL v2"); 218 MODULE_IMPORT_NS("IIO_ST_SENSORS"); 219