/* * STMicroelectronics pressures driver * * Copyright 2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> * * Licensed under the GPL-2. */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/acpi.h> #include <linux/i2c.h> #include <linux/iio/iio.h> #include <linux/iio/common/st_sensors.h> #include <linux/iio/common/st_sensors_i2c.h> #include "st_pressure.h" #ifdef CONFIG_OF static const struct of_device_id st_press_of_match[] = { { .compatible = "st,lps001wp-press", .data = LPS001WP_PRESS_DEV_NAME, }, { .compatible = "st,lps25h-press", .data = LPS25H_PRESS_DEV_NAME, }, { .compatible = "st,lps331ap-press", .data = LPS331AP_PRESS_DEV_NAME, }, { .compatible = "st,lps22hb-press", .data = LPS22HB_PRESS_DEV_NAME, }, {}, }; MODULE_DEVICE_TABLE(of, st_press_of_match); #else #define st_press_of_match NULL #endif #ifdef CONFIG_ACPI static const struct acpi_device_id st_press_acpi_match[] = { {"SNO9210", LPS22HB}, { }, }; MODULE_DEVICE_TABLE(acpi, st_press_acpi_match); #else #define st_press_acpi_match NULL #endif static const struct i2c_device_id st_press_id_table[] = { { LPS001WP_PRESS_DEV_NAME, LPS001WP }, { LPS25H_PRESS_DEV_NAME, LPS25H }, { LPS331AP_PRESS_DEV_NAME, LPS331AP }, { LPS22HB_PRESS_DEV_NAME, LPS22HB }, {}, }; MODULE_DEVICE_TABLE(i2c, st_press_id_table); static int st_press_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct iio_dev *indio_dev; struct st_sensor_data *press_data; int ret; indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data)); if (!indio_dev) return -ENOMEM; press_data = iio_priv(indio_dev); if (client->dev.of_node) { st_sensors_of_i2c_probe(client, st_press_of_match); } else if (ACPI_HANDLE(&client->dev)) { ret = st_sensors_match_acpi_device(&client->dev); if ((ret < 0) || (ret >= ST_PRESS_MAX)) return -ENODEV; strncpy(client->name, st_press_id_table[ret].name, sizeof(client->name)); client->name[sizeof(client->name) - 1] = '\0'; } else if (!id) return -ENODEV; st_sensors_i2c_configure(indio_dev, client, press_data); ret = st_press_common_probe(indio_dev); if (ret < 0) return ret; return 0; } static int st_press_i2c_remove(struct i2c_client *client) { st_press_common_remove(i2c_get_clientdata(client)); return 0; } static struct i2c_driver st_press_driver = { .driver = { .name = "st-press-i2c", .of_match_table = of_match_ptr(st_press_of_match), .acpi_match_table = ACPI_PTR(st_press_acpi_match), }, .probe = st_press_i2c_probe, .remove = st_press_i2c_remove, .id_table = st_press_id_table, }; module_i2c_driver(st_press_driver); MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver"); MODULE_LICENSE("GPL v2");