1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Driver for NXP Fxas21002c Gyroscope - SPI
4  *
5  * Copyright (C) 2019 Linaro Ltd.
6  */
7 
8 #include <linux/err.h>
9 #include <linux/mod_devicetable.h>
10 #include <linux/module.h>
11 #include <linux/regmap.h>
12 #include <linux/spi/spi.h>
13 
14 #include "fxas21002c.h"
15 
16 static const struct regmap_config fxas21002c_regmap_spi_conf = {
17 	.reg_bits = 8,
18 	.val_bits = 8,
19 	.max_register = FXAS21002C_REG_CTRL3,
20 };
21 
22 static int fxas21002c_spi_probe(struct spi_device *spi)
23 {
24 	const struct spi_device_id *id = spi_get_device_id(spi);
25 	struct regmap *regmap;
26 
27 	regmap = devm_regmap_init_spi(spi, &fxas21002c_regmap_spi_conf);
28 	if (IS_ERR(regmap)) {
29 		dev_err(&spi->dev, "Failed to register spi regmap: %ld\n",
30 			PTR_ERR(regmap));
31 		return PTR_ERR(regmap);
32 	}
33 
34 	return fxas21002c_core_probe(&spi->dev, regmap, spi->irq, id->name);
35 }
36 
37 static int fxas21002c_spi_remove(struct spi_device *spi)
38 {
39 	fxas21002c_core_remove(&spi->dev);
40 
41 	return 0;
42 }
43 
44 static const struct spi_device_id fxas21002c_spi_id[] = {
45 	{ "fxas21002c", 0 },
46 	{ }
47 };
48 MODULE_DEVICE_TABLE(spi, fxas21002c_spi_id);
49 
50 static const struct of_device_id fxas21002c_spi_of_match[] = {
51 	{ .compatible = "nxp,fxas21002c", },
52 	{ }
53 };
54 MODULE_DEVICE_TABLE(of, fxas21002c_spi_of_match);
55 
56 static struct spi_driver fxas21002c_spi_driver = {
57 	.driver = {
58 		.name = "fxas21002c_spi",
59 		.pm = &fxas21002c_pm_ops,
60 		.of_match_table = fxas21002c_spi_of_match,
61 	},
62 	.probe		= fxas21002c_spi_probe,
63 	.remove		= fxas21002c_spi_remove,
64 	.id_table	= fxas21002c_spi_id,
65 };
66 module_spi_driver(fxas21002c_spi_driver);
67 
68 MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>");
69 MODULE_LICENSE("GPL v2");
70 MODULE_DESCRIPTION("FXAS21002C SPI Gyro driver");
71