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
inv_mpu_i2c_disable(struct iio_dev * indio_dev)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
inv_mpu_probe(struct spi_device * spi)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