1 /* 2 * STMicroelectronics accelerometers driver 3 * 4 * Copyright 2012-2013 STMicroelectronics Inc. 5 * 6 * Denis Ciocca <denis.ciocca@st.com> 7 * 8 * Licensed under the GPL-2. 9 */ 10 11 #include <linux/kernel.h> 12 #include <linux/module.h> 13 #include <linux/slab.h> 14 #include <linux/i2c.h> 15 #include <linux/iio/iio.h> 16 17 #include <linux/iio/common/st_sensors.h> 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 .compatible = "st,lsm303dlh-accel", 25 .data = LSM303DLH_ACCEL_DEV_NAME, 26 }, 27 { 28 .compatible = "st,lsm303dlhc-accel", 29 .data = LSM303DLHC_ACCEL_DEV_NAME, 30 }, 31 { 32 .compatible = "st,lis3dh-accel", 33 .data = LIS3DH_ACCEL_DEV_NAME, 34 }, 35 { 36 .compatible = "st,lsm330d-accel", 37 .data = LSM330D_ACCEL_DEV_NAME, 38 }, 39 { 40 .compatible = "st,lsm330dl-accel", 41 .data = LSM330DL_ACCEL_DEV_NAME, 42 }, 43 { 44 .compatible = "st,lsm330dlc-accel", 45 .data = LSM330DLC_ACCEL_DEV_NAME, 46 }, 47 { 48 .compatible = "st,lis331dlh-accel", 49 .data = LIS331DLH_ACCEL_DEV_NAME, 50 }, 51 { 52 .compatible = "st,lsm303dl-accel", 53 .data = LSM303DL_ACCEL_DEV_NAME, 54 }, 55 { 56 .compatible = "st,lsm303dlm-accel", 57 .data = LSM303DLM_ACCEL_DEV_NAME, 58 }, 59 { 60 .compatible = "st,lsm330-accel", 61 .data = LSM330_ACCEL_DEV_NAME, 62 }, 63 {}, 64 }; 65 MODULE_DEVICE_TABLE(of, st_accel_of_match); 66 #else 67 #define st_accel_of_match NULL 68 #endif 69 70 static int st_accel_i2c_probe(struct i2c_client *client, 71 const struct i2c_device_id *id) 72 { 73 struct iio_dev *indio_dev; 74 struct st_sensor_data *adata; 75 int err; 76 77 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata)); 78 if (!indio_dev) 79 return -ENOMEM; 80 81 adata = iio_priv(indio_dev); 82 adata->dev = &client->dev; 83 st_sensors_of_i2c_probe(client, st_accel_of_match); 84 85 st_sensors_i2c_configure(indio_dev, client, adata); 86 87 err = st_accel_common_probe(indio_dev, client->dev.platform_data); 88 if (err < 0) 89 return err; 90 91 return 0; 92 } 93 94 static int st_accel_i2c_remove(struct i2c_client *client) 95 { 96 st_accel_common_remove(i2c_get_clientdata(client)); 97 98 return 0; 99 } 100 101 static const struct i2c_device_id st_accel_id_table[] = { 102 { LSM303DLH_ACCEL_DEV_NAME }, 103 { LSM303DLHC_ACCEL_DEV_NAME }, 104 { LIS3DH_ACCEL_DEV_NAME }, 105 { LSM330D_ACCEL_DEV_NAME }, 106 { LSM330DL_ACCEL_DEV_NAME }, 107 { LSM330DLC_ACCEL_DEV_NAME }, 108 { LIS331DLH_ACCEL_DEV_NAME }, 109 { LSM303DL_ACCEL_DEV_NAME }, 110 { LSM303DLM_ACCEL_DEV_NAME }, 111 { LSM330_ACCEL_DEV_NAME }, 112 {}, 113 }; 114 MODULE_DEVICE_TABLE(i2c, st_accel_id_table); 115 116 static struct i2c_driver st_accel_driver = { 117 .driver = { 118 .owner = THIS_MODULE, 119 .name = "st-accel-i2c", 120 .of_match_table = of_match_ptr(st_accel_of_match), 121 }, 122 .probe = st_accel_i2c_probe, 123 .remove = st_accel_i2c_remove, 124 .id_table = st_accel_id_table, 125 }; 126 module_i2c_driver(st_accel_driver); 127 128 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 129 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver"); 130 MODULE_LICENSE("GPL v2"); 131