hsc030pa_spi.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Honeywell TruStability HSC Series pressure/temperature sensor
 4 *
 5 * Copyright (c) 2023 Petre Rodan <petre.rodan@subdimension.ro>
 6 *
 7 * Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/common/documents/sps-siot-spi-comms-digital-ouptu-pressure-sensors-tn-008202-3-en-ciid-45843.pdf
 8 * Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/common/documents/sps-siot-sleep-mode-technical-note-008286-1-en-ciid-155793.pdf
 9 */
10
11#include <linux/delay.h>
12#include <linux/device.h>
13#include <linux/mod_devicetable.h>
14#include <linux/module.h>
15#include <linux/spi/spi.h>
16#include <linux/stddef.h>
17#include <linux/types.h>
18
19#include <linux/iio/iio.h>
20
21#include "hsc030pa.h"
22
23static int hsc_spi_recv(struct hsc_data *data)
24{
25	struct spi_device *spi = to_spi_device(data->dev);
26
27	msleep_interruptible(HSC_RESP_TIME_MS);
28	return spi_read(spi, data->buffer, HSC_REG_MEASUREMENT_RD_SIZE);
29}
30
31static int hsc_spi_probe(struct spi_device *spi)
32{
33	return hsc_common_probe(&spi->dev, hsc_spi_recv);
34}
35
36static const struct of_device_id hsc_spi_match[] = {
37	{ .compatible = "honeywell,hsc030pa" },
38	{ }
39};
40MODULE_DEVICE_TABLE(of, hsc_spi_match);
41
42static const struct spi_device_id hsc_spi_id[] = {
43	{ "hsc030pa" },
44	{ }
45};
46MODULE_DEVICE_TABLE(spi, hsc_spi_id);
47
48static struct spi_driver hsc_spi_driver = {
49	.driver = {
50		.name = "hsc030pa",
51		.of_match_table = hsc_spi_match,
52	},
53	.probe = hsc_spi_probe,
54	.id_table = hsc_spi_id,
55};
56module_spi_driver(hsc_spi_driver);
57
58MODULE_AUTHOR("Petre Rodan <petre.rodan@subdimension.ro>");
59MODULE_DESCRIPTION("Honeywell HSC and SSC pressure sensor spi driver");
60MODULE_LICENSE("GPL");
61MODULE_IMPORT_NS("IIO_HONEYWELL_HSC030PA");