tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * ADXL355 3-Axis Digital Accelerometer SPI driver
4 *
5 * Copyright (c) 2021 Puranjay Mohan <puranjay12@gmail.com>
6 */
7
8#include <linux/module.h>
9#include <linux/mod_devicetable.h>
10#include <linux/regmap.h>
11#include <linux/spi/spi.h>
12
13#include "adxl355.h"
14
15static const struct regmap_config adxl355_spi_regmap_config = {
16 .reg_bits = 7,
17 .pad_bits = 1,
18 .val_bits = 8,
19 .read_flag_mask = BIT(0),
20 .max_register = 0x2F,
21 .rd_table = &adxl355_readable_regs_tbl,
22 .wr_table = &adxl355_writeable_regs_tbl,
23};
24
25static int adxl355_spi_probe(struct spi_device *spi)
26{
27 const struct spi_device_id *id = spi_get_device_id(spi);
28 struct regmap *regmap;
29
30 regmap = devm_regmap_init_spi(spi, &adxl355_spi_regmap_config);
31 if (IS_ERR(regmap)) {
32 dev_err(&spi->dev, "Error initializing spi regmap: %ld\n",
33 PTR_ERR(regmap));
34
35 return PTR_ERR(regmap);
36 }
37
38 return adxl355_core_probe(&spi->dev, regmap, id->name);
39}
40
41static const struct spi_device_id adxl355_spi_id[] = {
42 { "adxl355", 0 },
43 { }
44};
45MODULE_DEVICE_TABLE(spi, adxl355_spi_id);
46
47static const struct of_device_id adxl355_of_match[] = {
48 { .compatible = "adi,adxl355" },
49 { }
50};
51MODULE_DEVICE_TABLE(of, adxl355_of_match);
52
53static struct spi_driver adxl355_spi_driver = {
54 .driver = {
55 .name = "adxl355_spi",
56 .of_match_table = adxl355_of_match,
57 },
58 .probe = adxl355_spi_probe,
59 .id_table = adxl355_spi_id,
60};
61module_spi_driver(adxl355_spi_driver);
62
63MODULE_AUTHOR("Puranjay Mohan <puranjay12@gmail.com>");
64MODULE_DESCRIPTION("ADXL355 3-Axis Digital Accelerometer SPI driver");
65MODULE_LICENSE("GPL v2");
66MODULE_IMPORT_NS(IIO_ADXL355);