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 #ifdef CONFIG_OF 22 static const struct of_device_id st_press_of_match[] = { 23 { 24 .compatible = "st,lps001wp-press", 25 .data = LPS001WP_PRESS_DEV_NAME, 26 }, 27 { 28 .compatible = "st,lps25h-press", 29 .data = LPS25H_PRESS_DEV_NAME, 30 }, 31 { 32 .compatible = "st,lps331ap-press", 33 .data = LPS331AP_PRESS_DEV_NAME, 34 }, 35 {}, 36 }; 37 MODULE_DEVICE_TABLE(of, st_press_of_match); 38 #else 39 #define st_press_of_match NULL 40 #endif 41 42 static int st_press_i2c_probe(struct i2c_client *client, 43 const struct i2c_device_id *id) 44 { 45 struct iio_dev *indio_dev; 46 struct st_sensor_data *press_data; 47 int err; 48 49 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data)); 50 if (!indio_dev) 51 return -ENOMEM; 52 53 press_data = iio_priv(indio_dev); 54 st_sensors_of_i2c_probe(client, st_press_of_match); 55 56 st_sensors_i2c_configure(indio_dev, client, press_data); 57 58 err = st_press_common_probe(indio_dev); 59 if (err < 0) 60 return err; 61 62 return 0; 63 } 64 65 static int st_press_i2c_remove(struct i2c_client *client) 66 { 67 st_press_common_remove(i2c_get_clientdata(client)); 68 69 return 0; 70 } 71 72 static const struct i2c_device_id st_press_id_table[] = { 73 { LPS001WP_PRESS_DEV_NAME }, 74 { LPS25H_PRESS_DEV_NAME }, 75 { LPS331AP_PRESS_DEV_NAME }, 76 {}, 77 }; 78 MODULE_DEVICE_TABLE(i2c, st_press_id_table); 79 80 static struct i2c_driver st_press_driver = { 81 .driver = { 82 .name = "st-press-i2c", 83 .of_match_table = of_match_ptr(st_press_of_match), 84 }, 85 .probe = st_press_i2c_probe, 86 .remove = st_press_i2c_remove, 87 .id_table = st_press_id_table, 88 }; 89 module_i2c_driver(st_press_driver); 90 91 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 92 MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver"); 93 MODULE_LICENSE("GPL v2"); 94