xref: /openbmc/linux/drivers/iio/accel/kxsd9-spi.c (revision 8957261c)
1 // SPDX-License-Identifier: GPL-2.0-only
2 #include <linux/device.h>
3 #include <linux/kernel.h>
4 #include <linux/of.h>
5 #include <linux/spi/spi.h>
6 #include <linux/module.h>
7 #include <linux/slab.h>
8 #include <linux/regmap.h>
9 
10 #include "kxsd9.h"
11 
12 static int kxsd9_spi_probe(struct spi_device *spi)
13 {
14 	static const struct regmap_config config = {
15 		.reg_bits = 8,
16 		.val_bits = 8,
17 		.max_register = 0x0e,
18 	};
19 	struct regmap *regmap;
20 
21 	spi->mode = SPI_MODE_0;
22 	regmap = devm_regmap_init_spi(spi, &config);
23 	if (IS_ERR(regmap)) {
24 		dev_err(&spi->dev, "%s: regmap allocation failed: %ld\n",
25 			__func__, PTR_ERR(regmap));
26 		return PTR_ERR(regmap);
27 	}
28 
29 	return kxsd9_common_probe(&spi->dev,
30 				  regmap,
31 				  spi_get_device_id(spi)->name);
32 }
33 
34 static void kxsd9_spi_remove(struct spi_device *spi)
35 {
36 	kxsd9_common_remove(&spi->dev);
37 }
38 
39 static const struct spi_device_id kxsd9_spi_id[] = {
40 	{"kxsd9", 0},
41 	{ },
42 };
43 MODULE_DEVICE_TABLE(spi, kxsd9_spi_id);
44 
45 static const struct of_device_id kxsd9_of_match[] = {
46 	{ .compatible = "kionix,kxsd9" },
47 	{ }
48 };
49 MODULE_DEVICE_TABLE(of, kxsd9_of_match);
50 
51 static struct spi_driver kxsd9_spi_driver = {
52 	.driver = {
53 		.name = "kxsd9",
54 		.pm = pm_ptr(&kxsd9_dev_pm_ops),
55 		.of_match_table = kxsd9_of_match,
56 	},
57 	.probe = kxsd9_spi_probe,
58 	.remove = kxsd9_spi_remove,
59 	.id_table = kxsd9_spi_id,
60 };
61 module_spi_driver(kxsd9_spi_driver);
62 
63 MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
64 MODULE_DESCRIPTION("Kionix KXSD9 SPI driver");
65 MODULE_LICENSE("GPL v2");
66 MODULE_IMPORT_NS(IIO_KXSD9);
67