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