1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * STMicroelectronics pressures driver 4 * 5 * Copyright 2013 STMicroelectronics Inc. 6 * 7 * Denis Ciocca <denis.ciocca@st.com> 8 */ 9 10 #include <linux/kernel.h> 11 #include <linux/module.h> 12 #include <linux/mod_devicetable.h> 13 #include <linux/i2c.h> 14 #include <linux/iio/iio.h> 15 16 #include <linux/iio/common/st_sensors.h> 17 #include <linux/iio/common/st_sensors_i2c.h> 18 #include "st_pressure.h" 19 20 static const struct of_device_id st_press_of_match[] = { 21 { 22 .compatible = "st,lps001wp-press", 23 .data = LPS001WP_PRESS_DEV_NAME, 24 }, 25 { 26 .compatible = "st,lps25h-press", 27 .data = LPS25H_PRESS_DEV_NAME, 28 }, 29 { 30 .compatible = "st,lps331ap-press", 31 .data = LPS331AP_PRESS_DEV_NAME, 32 }, 33 { 34 .compatible = "st,lps22hb-press", 35 .data = LPS22HB_PRESS_DEV_NAME, 36 }, 37 { 38 .compatible = "st,lps33hw", 39 .data = LPS33HW_PRESS_DEV_NAME, 40 }, 41 { 42 .compatible = "st,lps35hw", 43 .data = LPS35HW_PRESS_DEV_NAME, 44 }, 45 { 46 .compatible = "st,lps22hh", 47 .data = LPS22HH_PRESS_DEV_NAME, 48 }, 49 { 50 .compatible = "st,lps22df", 51 .data = LPS22DF_PRESS_DEV_NAME, 52 }, 53 {}, 54 }; 55 MODULE_DEVICE_TABLE(of, st_press_of_match); 56 57 static const struct acpi_device_id st_press_acpi_match[] = { 58 {"SNO9210", LPS22HB}, 59 { }, 60 }; 61 MODULE_DEVICE_TABLE(acpi, st_press_acpi_match); 62 63 static const struct i2c_device_id st_press_id_table[] = { 64 { LPS001WP_PRESS_DEV_NAME, LPS001WP }, 65 { LPS25H_PRESS_DEV_NAME, LPS25H }, 66 { LPS331AP_PRESS_DEV_NAME, LPS331AP }, 67 { LPS22HB_PRESS_DEV_NAME, LPS22HB }, 68 { LPS33HW_PRESS_DEV_NAME, LPS33HW }, 69 { LPS35HW_PRESS_DEV_NAME, LPS35HW }, 70 { LPS22HH_PRESS_DEV_NAME, LPS22HH }, 71 { LPS22DF_PRESS_DEV_NAME, LPS22DF }, 72 {}, 73 }; 74 MODULE_DEVICE_TABLE(i2c, st_press_id_table); 75 76 static int st_press_i2c_probe(struct i2c_client *client) 77 { 78 const struct st_sensor_settings *settings; 79 struct st_sensor_data *press_data; 80 struct iio_dev *indio_dev; 81 int ret; 82 83 st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name)); 84 85 settings = st_press_get_settings(client->name); 86 if (!settings) { 87 dev_err(&client->dev, "device name %s not recognized.\n", 88 client->name); 89 return -ENODEV; 90 } 91 92 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data)); 93 if (!indio_dev) 94 return -ENOMEM; 95 96 press_data = iio_priv(indio_dev); 97 press_data->sensor_settings = (struct st_sensor_settings *)settings; 98 99 ret = st_sensors_i2c_configure(indio_dev, client); 100 if (ret < 0) 101 return ret; 102 103 ret = st_sensors_power_enable(indio_dev); 104 if (ret) 105 return ret; 106 107 return st_press_common_probe(indio_dev); 108 } 109 110 static struct i2c_driver st_press_driver = { 111 .driver = { 112 .name = "st-press-i2c", 113 .of_match_table = st_press_of_match, 114 .acpi_match_table = st_press_acpi_match, 115 }, 116 .probe = st_press_i2c_probe, 117 .id_table = st_press_id_table, 118 }; 119 module_i2c_driver(st_press_driver); 120 121 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 122 MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver"); 123 MODULE_LICENSE("GPL v2"); 124 MODULE_IMPORT_NS(IIO_ST_SENSORS); 125