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/acpi.h> 11 #include <linux/kernel.h> 12 #include <linux/module.h> 13 #include <linux/mod_devicetable.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 const struct of_device_id st_press_of_match[] = { 22 { 23 .compatible = "st,lps001wp-press", 24 .data = LPS001WP_PRESS_DEV_NAME, 25 }, 26 { 27 .compatible = "st,lps25h-press", 28 .data = LPS25H_PRESS_DEV_NAME, 29 }, 30 { 31 .compatible = "st,lps331ap-press", 32 .data = LPS331AP_PRESS_DEV_NAME, 33 }, 34 { 35 .compatible = "st,lps22hb-press", 36 .data = LPS22HB_PRESS_DEV_NAME, 37 }, 38 { 39 .compatible = "st,lps33hw", 40 .data = LPS33HW_PRESS_DEV_NAME, 41 }, 42 { 43 .compatible = "st,lps35hw", 44 .data = LPS35HW_PRESS_DEV_NAME, 45 }, 46 { 47 .compatible = "st,lps22hh", 48 .data = LPS22HH_PRESS_DEV_NAME, 49 }, 50 { 51 .compatible = "st,lps22df", 52 .data = LPS22DF_PRESS_DEV_NAME, 53 }, 54 {}, 55 }; 56 MODULE_DEVICE_TABLE(of, st_press_of_match); 57 58 #ifdef CONFIG_ACPI 59 static const struct acpi_device_id st_press_acpi_match[] = { 60 {"SNO9210", LPS22HB}, 61 { }, 62 }; 63 MODULE_DEVICE_TABLE(acpi, st_press_acpi_match); 64 #endif 65 66 static const struct i2c_device_id st_press_id_table[] = { 67 { LPS001WP_PRESS_DEV_NAME, LPS001WP }, 68 { LPS25H_PRESS_DEV_NAME, LPS25H }, 69 { LPS331AP_PRESS_DEV_NAME, LPS331AP }, 70 { LPS22HB_PRESS_DEV_NAME, LPS22HB }, 71 { LPS33HW_PRESS_DEV_NAME, LPS33HW }, 72 { LPS35HW_PRESS_DEV_NAME, LPS35HW }, 73 { LPS22HH_PRESS_DEV_NAME, LPS22HH }, 74 { LPS22DF_PRESS_DEV_NAME, LPS22DF }, 75 {}, 76 }; 77 MODULE_DEVICE_TABLE(i2c, st_press_id_table); 78 79 static int st_press_i2c_probe(struct i2c_client *client) 80 { 81 const struct st_sensor_settings *settings; 82 struct st_sensor_data *press_data; 83 struct iio_dev *indio_dev; 84 int ret; 85 86 st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name)); 87 88 settings = st_press_get_settings(client->name); 89 if (!settings) { 90 dev_err(&client->dev, "device name %s not recognized.\n", 91 client->name); 92 return -ENODEV; 93 } 94 95 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data)); 96 if (!indio_dev) 97 return -ENOMEM; 98 99 press_data = iio_priv(indio_dev); 100 press_data->sensor_settings = (struct st_sensor_settings *)settings; 101 102 ret = st_sensors_i2c_configure(indio_dev, client); 103 if (ret < 0) 104 return ret; 105 106 ret = st_sensors_power_enable(indio_dev); 107 if (ret) 108 return ret; 109 110 return st_press_common_probe(indio_dev); 111 } 112 113 static struct i2c_driver st_press_driver = { 114 .driver = { 115 .name = "st-press-i2c", 116 .of_match_table = st_press_of_match, 117 .acpi_match_table = ACPI_PTR(st_press_acpi_match), 118 }, 119 .probe_new = st_press_i2c_probe, 120 .id_table = st_press_id_table, 121 }; 122 module_i2c_driver(st_press_driver); 123 124 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 125 MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver"); 126 MODULE_LICENSE("GPL v2"); 127 MODULE_IMPORT_NS(IIO_ST_SENSORS); 128