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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * STMicroelectronics pressures driver4 *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/spi/spi.h>14#include <linux/iio/iio.h>15 16#include <linux/iio/common/st_sensors.h>17#include <linux/iio/common/st_sensors_spi.h>18#include "st_pressure.h"19 20/*21 * For new single-chip sensors use <device_name> as compatible string.22 * For old single-chip devices keep <device_name>-press to maintain23 * compatibility24 */25static const struct of_device_id st_press_of_match[] = {26 {27 .compatible = "st,lps001wp-press",28 .data = LPS001WP_PRESS_DEV_NAME,29 },30 {31 .compatible = "st,lps25h-press",32 .data = LPS25H_PRESS_DEV_NAME,33 },34 {35 .compatible = "st,lps331ap-press",36 .data = LPS331AP_PRESS_DEV_NAME,37 },38 {39 .compatible = "st,lps22hb-press",40 .data = LPS22HB_PRESS_DEV_NAME,41 },42 {43 .compatible = "st,lps33hw",44 .data = LPS33HW_PRESS_DEV_NAME,45 },46 {47 .compatible = "st,lps35hw",48 .data = LPS35HW_PRESS_DEV_NAME,49 },50 {51 .compatible = "st,lps22hh",52 .data = LPS22HH_PRESS_DEV_NAME,53 },54 {55 .compatible = "st,lps22df",56 .data = LPS22DF_PRESS_DEV_NAME,57 },58 {},59};60MODULE_DEVICE_TABLE(of, st_press_of_match);61 62static int st_press_spi_probe(struct spi_device *spi)63{64 const struct st_sensor_settings *settings;65 struct st_sensor_data *press_data;66 struct iio_dev *indio_dev;67 int err;68 69 st_sensors_dev_name_probe(&spi->dev, spi->modalias, sizeof(spi->modalias));70 71 settings = st_press_get_settings(spi->modalias);72 if (!settings) {73 dev_err(&spi->dev, "device name %s not recognized.\n",74 spi->modalias);75 return -ENODEV;76 }77 78 indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*press_data));79 if (!indio_dev)80 return -ENOMEM;81 82 press_data = iio_priv(indio_dev);83 press_data->sensor_settings = (struct st_sensor_settings *)settings;84 85 err = st_sensors_spi_configure(indio_dev, spi);86 if (err < 0)87 return err;88 89 err = st_sensors_power_enable(indio_dev);90 if (err)91 return err;92 93 return st_press_common_probe(indio_dev);94}95 96static const struct spi_device_id st_press_id_table[] = {97 { LPS001WP_PRESS_DEV_NAME },98 { LPS25H_PRESS_DEV_NAME },99 { LPS331AP_PRESS_DEV_NAME },100 { LPS22HB_PRESS_DEV_NAME },101 { LPS33HW_PRESS_DEV_NAME },102 { LPS35HW_PRESS_DEV_NAME },103 { LPS22HH_PRESS_DEV_NAME },104 { LPS22DF_PRESS_DEV_NAME },105 { "lps001wp-press" },106 { "lps25h-press", },107 { "lps331ap-press" },108 { "lps22hb-press" },109 {},110};111MODULE_DEVICE_TABLE(spi, st_press_id_table);112 113static struct spi_driver st_press_driver = {114 .driver = {115 .name = "st-press-spi",116 .of_match_table = st_press_of_match,117 },118 .probe = st_press_spi_probe,119 .id_table = st_press_id_table,120};121module_spi_driver(st_press_driver);122 123MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");124MODULE_DESCRIPTION("STMicroelectronics pressures spi driver");125MODULE_LICENSE("GPL v2");126MODULE_IMPORT_NS(IIO_ST_SENSORS);127