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 	{"icm20600", INV_ICM20600},
80 	{"icm20602", INV_ICM20602},
81 	{"icm20690", INV_ICM20690},
82 	{"iam20680", INV_IAM20680},
83 	{}
84 };
85 
86 MODULE_DEVICE_TABLE(spi, inv_mpu_id);
87 
88 static const struct of_device_id inv_of_match[] = {
89 	{
90 		.compatible = "invensense,mpu6000",
91 		.data = (void *)INV_MPU6000
92 	},
93 	{
94 		.compatible = "invensense,mpu6500",
95 		.data = (void *)INV_MPU6500
96 	},
97 	{
98 		.compatible = "invensense,mpu6515",
99 		.data = (void *)INV_MPU6515
100 	},
101 	{
102 		.compatible = "invensense,mpu6880",
103 		.data = (void *)INV_MPU6880
104 	},
105 	{
106 		.compatible = "invensense,mpu9250",
107 		.data = (void *)INV_MPU9250
108 	},
109 	{
110 		.compatible = "invensense,mpu9255",
111 		.data = (void *)INV_MPU9255
112 	},
113 	{
114 		.compatible = "invensense,icm20608",
115 		.data = (void *)INV_ICM20608
116 	},
117 	{
118 		.compatible = "invensense,icm20608d",
119 		.data = (void *)INV_ICM20608D
120 	},
121 	{
122 		.compatible = "invensense,icm20609",
123 		.data = (void *)INV_ICM20609
124 	},
125 	{
126 		.compatible = "invensense,icm20689",
127 		.data = (void *)INV_ICM20689
128 	},
129 	{
130 		.compatible = "invensense,icm20600",
131 		.data = (void *)INV_ICM20600
132 	},
133 	{
134 		.compatible = "invensense,icm20602",
135 		.data = (void *)INV_ICM20602
136 	},
137 	{
138 		.compatible = "invensense,icm20690",
139 		.data = (void *)INV_ICM20690
140 	},
141 	{
142 		.compatible = "invensense,iam20680",
143 		.data = (void *)INV_IAM20680
144 	},
145 	{ }
146 };
147 MODULE_DEVICE_TABLE(of, inv_of_match);
148 
149 static const struct acpi_device_id inv_acpi_match[] = {
150 	{"INVN6000", INV_MPU6000},
151 	{ },
152 };
153 MODULE_DEVICE_TABLE(acpi, inv_acpi_match);
154 
155 static struct spi_driver inv_mpu_driver = {
156 	.probe		=	inv_mpu_probe,
157 	.id_table	=	inv_mpu_id,
158 	.driver = {
159 		.of_match_table = inv_of_match,
160 		.acpi_match_table = inv_acpi_match,
161 		.name	=	"inv-mpu6000-spi",
162 		.pm     =       pm_ptr(&inv_mpu_pmops),
163 	},
164 };
165 
166 module_spi_driver(inv_mpu_driver);
167 
168 MODULE_AUTHOR("Adriana Reus <adriana.reus@intel.com>");
169 MODULE_DESCRIPTION("Invensense device MPU6000 driver");
170 MODULE_LICENSE("GPL");
171 MODULE_IMPORT_NS(IIO_MPU6050);
172