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/slab.h> 13 #include <linux/acpi.h> 14 #include <linux/i2c.h> 15 #include <linux/iio/iio.h> 16 #include <linux/property.h> 17 18 #include <linux/iio/common/st_sensors_i2c.h> 19 #include "st_accel.h" 20 21 #ifdef CONFIG_OF 22 static const struct of_device_id st_accel_of_match[] = { 23 { 24 /* An older compatible */ 25 .compatible = "st,lis3lv02d", 26 .data = LIS3LV02DL_ACCEL_DEV_NAME, 27 }, 28 { 29 .compatible = "st,lis3lv02dl-accel", 30 .data = LIS3LV02DL_ACCEL_DEV_NAME, 31 }, 32 { 33 .compatible = "st,lsm303dlh-accel", 34 .data = LSM303DLH_ACCEL_DEV_NAME, 35 }, 36 { 37 .compatible = "st,lsm303dlhc-accel", 38 .data = LSM303DLHC_ACCEL_DEV_NAME, 39 }, 40 { 41 .compatible = "st,lis3dh-accel", 42 .data = LIS3DH_ACCEL_DEV_NAME, 43 }, 44 { 45 .compatible = "st,lsm330d-accel", 46 .data = LSM330D_ACCEL_DEV_NAME, 47 }, 48 { 49 .compatible = "st,lsm330dl-accel", 50 .data = LSM330DL_ACCEL_DEV_NAME, 51 }, 52 { 53 .compatible = "st,lsm330dlc-accel", 54 .data = LSM330DLC_ACCEL_DEV_NAME, 55 }, 56 { 57 .compatible = "st,lis331dl-accel", 58 .data = LIS331DL_ACCEL_DEV_NAME, 59 }, 60 { 61 .compatible = "st,lis331dlh-accel", 62 .data = LIS331DLH_ACCEL_DEV_NAME, 63 }, 64 { 65 .compatible = "st,lsm303dl-accel", 66 .data = LSM303DL_ACCEL_DEV_NAME, 67 }, 68 { 69 .compatible = "st,lsm303dlm-accel", 70 .data = LSM303DLM_ACCEL_DEV_NAME, 71 }, 72 { 73 .compatible = "st,lsm330-accel", 74 .data = LSM330_ACCEL_DEV_NAME, 75 }, 76 { 77 .compatible = "st,lsm303agr-accel", 78 .data = LSM303AGR_ACCEL_DEV_NAME, 79 }, 80 { 81 .compatible = "st,lis2dh12-accel", 82 .data = LIS2DH12_ACCEL_DEV_NAME, 83 }, 84 { 85 .compatible = "st,h3lis331dl-accel", 86 .data = H3LIS331DL_ACCEL_DEV_NAME, 87 }, 88 { 89 .compatible = "st,lis3l02dq", 90 .data = LIS3L02DQ_ACCEL_DEV_NAME, 91 }, 92 { 93 .compatible = "st,lng2dm-accel", 94 .data = LNG2DM_ACCEL_DEV_NAME, 95 }, 96 { 97 .compatible = "st,lis2dw12", 98 .data = LIS2DW12_ACCEL_DEV_NAME, 99 }, 100 { 101 .compatible = "st,lis3de", 102 .data = LIS3DE_ACCEL_DEV_NAME, 103 }, 104 { 105 .compatible = "st,lis2de12", 106 .data = LIS2DE12_ACCEL_DEV_NAME, 107 }, 108 {}, 109 }; 110 MODULE_DEVICE_TABLE(of, st_accel_of_match); 111 #else 112 #define st_accel_of_match NULL 113 #endif 114 115 #ifdef CONFIG_ACPI 116 static const struct acpi_device_id st_accel_acpi_match[] = { 117 {"SMO8840", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME}, 118 {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME}, 119 { }, 120 }; 121 MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match); 122 #else 123 #define st_accel_acpi_match NULL 124 #endif 125 126 static const struct i2c_device_id st_accel_id_table[] = { 127 { LSM303DLH_ACCEL_DEV_NAME }, 128 { LSM303DLHC_ACCEL_DEV_NAME }, 129 { LIS3DH_ACCEL_DEV_NAME }, 130 { LSM330D_ACCEL_DEV_NAME }, 131 { LSM330DL_ACCEL_DEV_NAME }, 132 { LSM330DLC_ACCEL_DEV_NAME }, 133 { LIS331DLH_ACCEL_DEV_NAME }, 134 { LSM303DL_ACCEL_DEV_NAME }, 135 { LSM303DLM_ACCEL_DEV_NAME }, 136 { LSM330_ACCEL_DEV_NAME }, 137 { LSM303AGR_ACCEL_DEV_NAME }, 138 { LIS2DH12_ACCEL_DEV_NAME }, 139 { LIS3L02DQ_ACCEL_DEV_NAME }, 140 { LNG2DM_ACCEL_DEV_NAME }, 141 { H3LIS331DL_ACCEL_DEV_NAME }, 142 { LIS331DL_ACCEL_DEV_NAME }, 143 { LIS3LV02DL_ACCEL_DEV_NAME }, 144 { LIS2DW12_ACCEL_DEV_NAME }, 145 { LIS3DE_ACCEL_DEV_NAME }, 146 { LIS2DE12_ACCEL_DEV_NAME }, 147 {}, 148 }; 149 MODULE_DEVICE_TABLE(i2c, st_accel_id_table); 150 151 static int st_accel_i2c_probe(struct i2c_client *client) 152 { 153 struct iio_dev *indio_dev; 154 struct st_sensor_data *adata; 155 const char *match; 156 int ret; 157 158 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata)); 159 if (!indio_dev) 160 return -ENOMEM; 161 162 adata = iio_priv(indio_dev); 163 164 match = device_get_match_data(&client->dev); 165 if (match) 166 strlcpy(client->name, match, sizeof(client->name)); 167 168 st_sensors_i2c_configure(indio_dev, client, adata); 169 170 ret = st_accel_common_probe(indio_dev); 171 if (ret < 0) 172 return ret; 173 174 return 0; 175 } 176 177 static int st_accel_i2c_remove(struct i2c_client *client) 178 { 179 st_accel_common_remove(i2c_get_clientdata(client)); 180 181 return 0; 182 } 183 184 static struct i2c_driver st_accel_driver = { 185 .driver = { 186 .name = "st-accel-i2c", 187 .of_match_table = of_match_ptr(st_accel_of_match), 188 .acpi_match_table = ACPI_PTR(st_accel_acpi_match), 189 }, 190 .probe_new = st_accel_i2c_probe, 191 .remove = st_accel_i2c_remove, 192 .id_table = st_accel_id_table, 193 }; 194 module_i2c_driver(st_accel_driver); 195 196 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 197 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver"); 198 MODULE_LICENSE("GPL v2"); 199