1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (C) 2015 Intel Corporation Inc.
4 */
5 #include <linux/mod_devicetable.h>
6 #include <linux/module.h>
7 #include <linux/property.h>
8 #include <linux/spi/spi.h>
9 #include <linux/regmap.h>
10 #include <linux/iio/iio.h>
11 #include "inv_mpu_iio.h"
12 
13 static const struct regmap_config inv_mpu_regmap_config = {
14 	.reg_bits = 8,
15 	.val_bits = 8,
16 };
17 
18 static int inv_mpu_i2c_disable(struct iio_dev *indio_dev)
19 {
20 	struct inv_mpu6050_state *st = iio_priv(indio_dev);
21 	int ret = 0;
22 
23 	if (st->reg->i2c_if) {
24 		ret = regmap_write(st->map, st->reg->i2c_if,
25 				   INV_ICM20602_BIT_I2C_IF_DIS);
26 	} else {
27 		st->chip_config.user_ctrl |= INV_MPU6050_BIT_I2C_IF_DIS;
28 		ret = regmap_write(st->map, st->reg->user_ctrl,
29 				   st->chip_config.user_ctrl);
30 	}
31 
32 	return ret;
33 }
34 
35 static int inv_mpu_probe(struct spi_device *spi)
36 {
37 	const void *match;
38 	struct regmap *regmap;
39 	const struct spi_device_id *spi_id;
40 	const char *name = NULL;
41 	enum inv_devices chip_type;
42 
43 	if ((spi_id = spi_get_device_id(spi))) {
44 		chip_type = (enum inv_devices)spi_id->driver_data;
45 		name = spi_id->name;
46 	} else if ((match = device_get_match_data(&spi->dev))) {
47 		chip_type = (uintptr_t)match;
48 		name = dev_name(&spi->dev);
49 	} else {
50 		return -ENODEV;
51 	}
52 
53 	regmap = devm_regmap_init_spi(spi, &inv_mpu_regmap_config);
54 	if (IS_ERR(regmap)) {
55 		dev_err(&spi->dev, "Failed to register spi regmap: %pe\n",
56 			regmap);
57 		return PTR_ERR(regmap);
58 	}
59 
60 	return inv_mpu_core_probe(regmap, spi->irq, name,
61 				  inv_mpu_i2c_disable, chip_type);
62 }
63 
64 /*
65  * device id table is used to identify what device can be
66  * supported by this driver
67  */
68 static const struct spi_device_id inv_mpu_id[] = {
69 	{"mpu6000", INV_MPU6000},
70 	{"mpu6500", INV_MPU6500},
71 	{"mpu6515", INV_MPU6515},
72 	{"mpu6880", INV_MPU6880},
73 	{"mpu9250", INV_MPU9250},
74 	{"mpu9255", INV_MPU9255},
75 	{"icm20608", INV_ICM20608},
76 	{"icm20608d", INV_ICM20608D},
77 	{"icm20609", INV_ICM20609},
78 	{"icm20689", INV_ICM20689},
79 	{"icm20602", INV_ICM20602},
80 	{"icm20690", INV_ICM20690},
81 	{"iam20680", INV_IAM20680},
82 	{}
83 };
84 
85 MODULE_DEVICE_TABLE(spi, inv_mpu_id);
86 
87 static const struct of_device_id inv_of_match[] = {
88 	{
89 		.compatible = "invensense,mpu6000",
90 		.data = (void *)INV_MPU6000
91 	},
92 	{
93 		.compatible = "invensense,mpu6500",
94 		.data = (void *)INV_MPU6500
95 	},
96 	{
97 		.compatible = "invensense,mpu6515",
98 		.data = (void *)INV_MPU6515
99 	},
100 	{
101 		.compatible = "invensense,mpu6880",
102 		.data = (void *)INV_MPU6880
103 	},
104 	{
105 		.compatible = "invensense,mpu9250",
106 		.data = (void *)INV_MPU9250
107 	},
108 	{
109 		.compatible = "invensense,mpu9255",
110 		.data = (void *)INV_MPU9255
111 	},
112 	{
113 		.compatible = "invensense,icm20608",
114 		.data = (void *)INV_ICM20608
115 	},
116 	{
117 		.compatible = "invensense,icm20608d",
118 		.data = (void *)INV_ICM20608D
119 	},
120 	{
121 		.compatible = "invensense,icm20609",
122 		.data = (void *)INV_ICM20609
123 	},
124 	{
125 		.compatible = "invensense,icm20689",
126 		.data = (void *)INV_ICM20689
127 	},
128 	{
129 		.compatible = "invensense,icm20602",
130 		.data = (void *)INV_ICM20602
131 	},
132 	{
133 		.compatible = "invensense,icm20690",
134 		.data = (void *)INV_ICM20690
135 	},
136 	{
137 		.compatible = "invensense,iam20680",
138 		.data = (void *)INV_IAM20680
139 	},
140 	{ }
141 };
142 MODULE_DEVICE_TABLE(of, inv_of_match);
143 
144 static const struct acpi_device_id inv_acpi_match[] = {
145 	{"INVN6000", INV_MPU6000},
146 	{ },
147 };
148 MODULE_DEVICE_TABLE(acpi, inv_acpi_match);
149 
150 static struct spi_driver inv_mpu_driver = {
151 	.probe		=	inv_mpu_probe,
152 	.id_table	=	inv_mpu_id,
153 	.driver = {
154 		.of_match_table = inv_of_match,
155 		.acpi_match_table = inv_acpi_match,
156 		.name	=	"inv-mpu6000-spi",
157 		.pm     =       &inv_mpu_pmops,
158 	},
159 };
160 
161 module_spi_driver(inv_mpu_driver);
162 
163 MODULE_AUTHOR("Adriana Reus <adriana.reus@intel.com>");
164 MODULE_DESCRIPTION("Invensense device MPU6000 driver");
165 MODULE_LICENSE("GPL");
166