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,l3g4is-gyro", 45 .data = L3G4IS_GYRO_DEV_NAME, 46 }, 47 { 48 .compatible = "st,lsm330-gyro", 49 .data = LSM330_GYRO_DEV_NAME, 50 }, 51 {}, 52 }; 53 MODULE_DEVICE_TABLE(of, st_gyro_of_match); 54 #else 55 #define st_gyro_of_match NULL 56 #endif 57 58 static int st_gyro_i2c_probe(struct i2c_client *client, 59 const struct i2c_device_id *id) 60 { 61 struct iio_dev *indio_dev; 62 struct st_sensor_data *gdata; 63 int err; 64 65 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*gdata)); 66 if (!indio_dev) 67 return -ENOMEM; 68 69 gdata = iio_priv(indio_dev); 70 st_sensors_of_i2c_probe(client, st_gyro_of_match); 71 72 st_sensors_i2c_configure(indio_dev, client, gdata); 73 74 err = st_gyro_common_probe(indio_dev); 75 if (err < 0) 76 return err; 77 78 return 0; 79 } 80 81 static int st_gyro_i2c_remove(struct i2c_client *client) 82 { 83 st_gyro_common_remove(i2c_get_clientdata(client)); 84 85 return 0; 86 } 87 88 static const struct i2c_device_id st_gyro_id_table[] = { 89 { L3G4200D_GYRO_DEV_NAME }, 90 { LSM330D_GYRO_DEV_NAME }, 91 { LSM330DL_GYRO_DEV_NAME }, 92 { LSM330DLC_GYRO_DEV_NAME }, 93 { L3GD20_GYRO_DEV_NAME }, 94 { L3G4IS_GYRO_DEV_NAME }, 95 { LSM330_GYRO_DEV_NAME }, 96 {}, 97 }; 98 MODULE_DEVICE_TABLE(i2c, st_gyro_id_table); 99 100 static struct i2c_driver st_gyro_driver = { 101 .driver = { 102 .owner = THIS_MODULE, 103 .name = "st-gyro-i2c", 104 .of_match_table = of_match_ptr(st_gyro_of_match), 105 }, 106 .probe = st_gyro_i2c_probe, 107 .remove = st_gyro_i2c_remove, 108 .id_table = st_gyro_id_table, 109 }; 110 module_i2c_driver(st_gyro_driver); 111 112 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 113 MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver"); 114 MODULE_LICENSE("GPL v2"); 115