1 /*
2  * 3-axis accelerometer driver supporting SPI Bosch-Sensortec accelerometer chip
3  * Copyright © 2015 Pengutronix, Markus Pargmann <mpa@pengutronix.de>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, see <http://www.gnu.org/licenses/>.
17  */
18 
19 #include <linux/device.h>
20 #include <linux/mod_devicetable.h>
21 #include <linux/module.h>
22 #include <linux/acpi.h>
23 #include <linux/regmap.h>
24 #include <linux/spi/spi.h>
25 
26 #include "bmc150-accel.h"
27 
28 static const struct regmap_config bmc150_spi_regmap_conf = {
29 	.reg_bits = 8,
30 	.val_bits = 8,
31 	.max_register = 0x3f,
32 };
33 
34 static int bmc150_accel_probe(struct spi_device *spi)
35 {
36 	struct regmap *regmap;
37 	const struct spi_device_id *id = spi_get_device_id(spi);
38 
39 	regmap = devm_regmap_init_spi(spi, &bmc150_spi_regmap_conf);
40 	if (IS_ERR(regmap)) {
41 		dev_err(&spi->dev, "Failed to initialize spi regmap\n");
42 		return PTR_ERR(regmap);
43 	}
44 
45 	return bmc150_accel_core_probe(&spi->dev, regmap, spi->irq, id->name,
46 				       true);
47 }
48 
49 static int bmc150_accel_remove(struct spi_device *spi)
50 {
51 	return bmc150_accel_core_remove(&spi->dev);
52 }
53 
54 static const struct acpi_device_id bmc150_accel_acpi_match[] = {
55 	{"BSBA0150",	bmc150},
56 	{"BMC150A",	bmc150},
57 	{"BMI055A",	bmi055},
58 	{"BMA0255",	bma255},
59 	{"BMA250E",	bma250e},
60 	{"BMA222E",	bma222e},
61 	{"BMA0280",	bma280},
62 	{ },
63 };
64 MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
65 
66 static const struct spi_device_id bmc150_accel_id[] = {
67 	{"bmc150_accel",	bmc150},
68 	{"bmi055_accel",	bmi055},
69 	{"bma255",		bma255},
70 	{"bma250e",		bma250e},
71 	{"bma222e",		bma222e},
72 	{"bma280",		bma280},
73 	{}
74 };
75 MODULE_DEVICE_TABLE(spi, bmc150_accel_id);
76 
77 static struct spi_driver bmc150_accel_driver = {
78 	.driver = {
79 		.name	= "bmc150_accel_spi",
80 		.acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
81 		.pm	= &bmc150_accel_pm_ops,
82 	},
83 	.probe		= bmc150_accel_probe,
84 	.remove		= bmc150_accel_remove,
85 	.id_table	= bmc150_accel_id,
86 };
87 module_spi_driver(bmc150_accel_driver);
88 
89 MODULE_AUTHOR("Markus Pargmann <mpa@pengutronix.de>");
90 MODULE_LICENSE("GPL v2");
91 MODULE_DESCRIPTION("BMC150 SPI accelerometer driver");
92