1 /* 2 * STMicroelectronics pressures driver 3 * 4 * Copyright 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_pressure.h" 20 21 static int st_press_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 *pdata; 26 int err; 27 28 indio_dev = iio_device_alloc(sizeof(*pdata)); 29 if (indio_dev == NULL) { 30 err = -ENOMEM; 31 goto iio_device_alloc_error; 32 } 33 34 pdata = iio_priv(indio_dev); 35 pdata->dev = &client->dev; 36 37 st_sensors_i2c_configure(indio_dev, client, pdata); 38 39 err = st_press_common_probe(indio_dev); 40 if (err < 0) 41 goto st_press_common_probe_error; 42 43 return 0; 44 45 st_press_common_probe_error: 46 iio_device_free(indio_dev); 47 iio_device_alloc_error: 48 return err; 49 } 50 51 static int st_press_i2c_remove(struct i2c_client *client) 52 { 53 st_press_common_remove(i2c_get_clientdata(client)); 54 55 return 0; 56 } 57 58 static const struct i2c_device_id st_press_id_table[] = { 59 { LPS331AP_PRESS_DEV_NAME }, 60 {}, 61 }; 62 MODULE_DEVICE_TABLE(i2c, st_press_id_table); 63 64 static struct i2c_driver st_press_driver = { 65 .driver = { 66 .owner = THIS_MODULE, 67 .name = "st-press-i2c", 68 }, 69 .probe = st_press_i2c_probe, 70 .remove = st_press_i2c_remove, 71 .id_table = st_press_id_table, 72 }; 73 module_i2c_driver(st_press_driver); 74 75 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 76 MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver"); 77 MODULE_LICENSE("GPL v2"); 78