1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/*
* Copyright (c) 2025 Robert Bosch GmbH.
*/
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/spi/spi.h>
#include "smi330.h"
static int smi330_regmap_spi_read(void *context, const void *reg_buf,
size_t reg_size, void *val_buf,
size_t val_size)
{
struct spi_device *spi = context;
/* Insert pad byte for reading */
u8 reg[] = { *(u8 *)reg_buf, 0 };
if (reg_size + 1 != ARRAY_SIZE(reg)) {
dev_err(&spi->dev, "Invalid register size %zu\n", reg_size);
return -EINVAL;
}
return spi_write_then_read(spi, reg, ARRAY_SIZE(reg), val_buf,
val_size);
}
static int smi330_regmap_spi_write(void *context, const void *data,
size_t count)
{
struct spi_device *spi = context;
return spi_write(spi, data, count);
}
static const struct regmap_bus smi330_regmap_bus = {
.read = smi330_regmap_spi_read,
.write = smi330_regmap_spi_write,
.read_flag_mask = 0x80,
};
static int smi330_spi_probe(struct spi_device *spi)
{
struct regmap *regmap;
regmap = devm_regmap_init(&spi->dev, &smi330_regmap_bus, &spi->dev,
&smi330_regmap_config);
if (IS_ERR(regmap))
return dev_err_probe(&spi->dev, PTR_ERR(regmap),
"Failed to initialize SPI Regmap\n");
return smi330_core_probe(&spi->dev, regmap);
}
static const struct spi_device_id smi330_spi_device_id[] = {
{ .name = "smi330" },
{ }
};
MODULE_DEVICE_TABLE(spi, smi330_spi_device_id);
static const struct of_device_id smi330_of_match[] = {
{ .compatible = "bosch,smi330" },
{ }
};
MODULE_DEVICE_TABLE(of, smi330_of_match);
static struct spi_driver smi330_spi_driver = {
.probe = smi330_spi_probe,
.id_table = smi330_spi_device_id,
.driver = {
.of_match_table = smi330_of_match,
.name = "smi330_spi",
},
};
module_spi_driver(smi330_spi_driver);
MODULE_AUTHOR("Stefan Gutmann <stefan.gutmann@de.bosch.com>");
MODULE_AUTHOR("Roman Huber <roman.huber@de.bosch.com>");
MODULE_AUTHOR("Filip Andrei <Andrei.Filip@ro.bosch.com>");
MODULE_AUTHOR("Drimbarean Avram Andrei <Avram-Andrei.Drimbarean@ro.bosch.com>");
MODULE_DESCRIPTION("Bosch SMI330 SPI driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_IMPORT_NS("IIO_SMI330");
|
