1 /* 2 * STMicroelectronics gyroscopes 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_gyro.h" 20 21 #ifdef CONFIG_OF 22 static const struct of_device_id st_gyro_of_match[] = { 23 { 24 .compatible = "st,l3g4200d-gyro", 25 .data = L3G4200D_GYRO_DEV_NAME, 26 }, 27 { 28 .compatible = "st,lsm330d-gyro", 29 .data = LSM330D_GYRO_DEV_NAME, 30 }, 31 { 32 .compatible = "st,lsm330dl-gyro", 33 .data = LSM330DL_GYRO_DEV_NAME, 34 }, 35 { 36 .compatible = "st,lsm330dlc-gyro", 37 .data = LSM330DLC_GYRO_DEV_NAME, 38 }, 39 { 40 .compatible = "st,l3gd20-gyro", 41 .data = L3GD20_GYRO_DEV_NAME, 42 }, 43 { 44 .compatible = "st,l3gd20h-gyro", 45 .data = L3GD20H_GYRO_DEV_NAME, 46 }, 47 { 48 .compatible = "st,l3g4is-gyro", 49 .data = L3G4IS_GYRO_DEV_NAME, 50 }, 51 { 52 .compatible = "st,lsm330-gyro", 53 .data = LSM330_GYRO_DEV_NAME, 54 }, 55 { 56 .compatible = "st,lsm9ds0-gyro", 57 .data = LSM9DS0_GYRO_DEV_NAME, 58 }, 59 {}, 60 }; 61 MODULE_DEVICE_TABLE(of, st_gyro_of_match); 62 #else 63 #define st_gyro_of_match NULL 64 #endif 65 66 static int st_gyro_i2c_probe(struct i2c_client *client, 67 const struct i2c_device_id *id) 68 { 69 struct iio_dev *indio_dev; 70 struct st_sensor_data *gdata; 71 int err; 72 73 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*gdata)); 74 if (!indio_dev) 75 return -ENOMEM; 76 77 gdata = iio_priv(indio_dev); 78 st_sensors_of_name_probe(&client->dev, st_gyro_of_match, 79 client->name, sizeof(client->name)); 80 81 st_sensors_i2c_configure(indio_dev, client, gdata); 82 83 err = st_gyro_common_probe(indio_dev); 84 if (err < 0) 85 return err; 86 87 return 0; 88 } 89 90 static int st_gyro_i2c_remove(struct i2c_client *client) 91 { 92 st_gyro_common_remove(i2c_get_clientdata(client)); 93 94 return 0; 95 } 96 97 static const struct i2c_device_id st_gyro_id_table[] = { 98 { L3G4200D_GYRO_DEV_NAME }, 99 { LSM330D_GYRO_DEV_NAME }, 100 { LSM330DL_GYRO_DEV_NAME }, 101 { LSM330DLC_GYRO_DEV_NAME }, 102 { L3GD20_GYRO_DEV_NAME }, 103 { L3GD20H_GYRO_DEV_NAME }, 104 { L3G4IS_GYRO_DEV_NAME }, 105 { LSM330_GYRO_DEV_NAME }, 106 { LSM9DS0_GYRO_DEV_NAME }, 107 {}, 108 }; 109 MODULE_DEVICE_TABLE(i2c, st_gyro_id_table); 110 111 static struct i2c_driver st_gyro_driver = { 112 .driver = { 113 .name = "st-gyro-i2c", 114 .of_match_table = of_match_ptr(st_gyro_of_match), 115 }, 116 .probe = st_gyro_i2c_probe, 117 .remove = st_gyro_i2c_remove, 118 .id_table = st_gyro_id_table, 119 }; 120 module_i2c_driver(st_gyro_driver); 121 122 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 123 MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver"); 124 MODULE_LICENSE("GPL v2"); 125