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124 lines
2.8 KiB
124 lines
2.8 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* STMicroelectronics pressures driver |
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* |
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* Copyright 2013 STMicroelectronics Inc. |
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* |
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* Denis Ciocca <[email protected]> |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/slab.h> |
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#include <linux/spi/spi.h> |
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#include <linux/iio/iio.h> |
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#include <linux/iio/common/st_sensors.h> |
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#include <linux/iio/common/st_sensors_spi.h> |
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#include "st_pressure.h" |
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/* |
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* For new single-chip sensors use <device_name> as compatible string. |
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* For old single-chip devices keep <device_name>-press to maintain |
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* compatibility |
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*/ |
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static const struct of_device_id st_press_of_match[] = { |
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{ |
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.compatible = "st,lps001wp-press", |
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.data = LPS001WP_PRESS_DEV_NAME, |
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}, |
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{ |
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.compatible = "st,lps25h-press", |
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.data = LPS25H_PRESS_DEV_NAME, |
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}, |
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{ |
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.compatible = "st,lps331ap-press", |
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.data = LPS331AP_PRESS_DEV_NAME, |
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}, |
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{ |
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.compatible = "st,lps22hb-press", |
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.data = LPS22HB_PRESS_DEV_NAME, |
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}, |
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{ |
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.compatible = "st,lps33hw", |
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.data = LPS33HW_PRESS_DEV_NAME, |
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}, |
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{ |
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.compatible = "st,lps35hw", |
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.data = LPS35HW_PRESS_DEV_NAME, |
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}, |
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{ |
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.compatible = "st,lps22hh", |
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.data = LPS22HH_PRESS_DEV_NAME, |
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}, |
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{}, |
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}; |
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MODULE_DEVICE_TABLE(of, st_press_of_match); |
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static int st_press_spi_probe(struct spi_device *spi) |
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{ |
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const struct st_sensor_settings *settings; |
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struct st_sensor_data *press_data; |
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struct iio_dev *indio_dev; |
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int err; |
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st_sensors_dev_name_probe(&spi->dev, spi->modalias, sizeof(spi->modalias)); |
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settings = st_press_get_settings(spi->modalias); |
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if (!settings) { |
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dev_err(&spi->dev, "device name %s not recognized.\n", |
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spi->modalias); |
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return -ENODEV; |
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} |
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indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*press_data)); |
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if (!indio_dev) |
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return -ENOMEM; |
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press_data = iio_priv(indio_dev); |
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press_data->sensor_settings = (struct st_sensor_settings *)settings; |
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err = st_sensors_spi_configure(indio_dev, spi); |
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if (err < 0) |
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return err; |
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err = st_press_common_probe(indio_dev); |
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if (err < 0) |
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return err; |
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return 0; |
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} |
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static int st_press_spi_remove(struct spi_device *spi) |
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{ |
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st_press_common_remove(spi_get_drvdata(spi)); |
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return 0; |
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} |
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static const struct spi_device_id st_press_id_table[] = { |
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{ LPS001WP_PRESS_DEV_NAME }, |
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{ LPS25H_PRESS_DEV_NAME }, |
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{ LPS331AP_PRESS_DEV_NAME }, |
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{ LPS22HB_PRESS_DEV_NAME }, |
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{ LPS33HW_PRESS_DEV_NAME }, |
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{ LPS35HW_PRESS_DEV_NAME }, |
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{ LPS22HH_PRESS_DEV_NAME }, |
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{}, |
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}; |
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MODULE_DEVICE_TABLE(spi, st_press_id_table); |
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static struct spi_driver st_press_driver = { |
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.driver = { |
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.name = "st-press-spi", |
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.of_match_table = st_press_of_match, |
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}, |
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.probe = st_press_spi_probe, |
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.remove = st_press_spi_remove, |
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.id_table = st_press_id_table, |
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}; |
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module_spi_driver(st_press_driver); |
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MODULE_AUTHOR("Denis Ciocca <[email protected]>"); |
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MODULE_DESCRIPTION("STMicroelectronics pressures spi driver"); |
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MODULE_LICENSE("GPL v2");
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