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