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 static int st_gyro_i2c_probe(struct i2c_client *client, 22 const struct i2c_device_id *id) 23 { 24 struct iio_dev *indio_dev; 25 struct st_sensor_data *gdata; 26 int err; 27 28 indio_dev = iio_device_alloc(sizeof(*gdata)); 29 if (indio_dev == NULL) { 30 err = -ENOMEM; 31 goto iio_device_alloc_error; 32 } 33 34 gdata = iio_priv(indio_dev); 35 gdata->dev = &client->dev; 36 37 st_sensors_i2c_configure(indio_dev, client, gdata); 38 39 err = st_gyro_common_probe(indio_dev); 40 if (err < 0) 41 goto st_gyro_common_probe_error; 42 43 return 0; 44 45 st_gyro_common_probe_error: 46 iio_device_free(indio_dev); 47 iio_device_alloc_error: 48 return err; 49 } 50 51 static int st_gyro_i2c_remove(struct i2c_client *client) 52 { 53 st_gyro_common_remove(i2c_get_clientdata(client)); 54 55 return 0; 56 } 57 58 static const struct i2c_device_id st_gyro_id_table[] = { 59 { L3G4200D_GYRO_DEV_NAME }, 60 { LSM330D_GYRO_DEV_NAME }, 61 { LSM330DL_GYRO_DEV_NAME }, 62 { LSM330DLC_GYRO_DEV_NAME }, 63 { L3GD20_GYRO_DEV_NAME }, 64 { L3GD20H_GYRO_DEV_NAME }, 65 { L3G4IS_GYRO_DEV_NAME }, 66 { LSM330_GYRO_DEV_NAME }, 67 {}, 68 }; 69 MODULE_DEVICE_TABLE(i2c, st_gyro_id_table); 70 71 static struct i2c_driver st_gyro_driver = { 72 .driver = { 73 .owner = THIS_MODULE, 74 .name = "st-gyro-i2c", 75 }, 76 .probe = st_gyro_i2c_probe, 77 .remove = st_gyro_i2c_remove, 78 .id_table = st_gyro_id_table, 79 }; 80 module_i2c_driver(st_gyro_driver); 81 82 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 83 MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver"); 84 MODULE_LICENSE("GPL v2"); 85