2 * Copyright (C) 2015 Intel Corporation Inc.
4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and
6 * may be copied, distributed, and modified under those terms.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 #include <linux/module.h>
14 #include <linux/acpi.h>
15 #include <linux/spi/spi.h>
16 #include <linux/regmap.h>
17 #include <linux/iio/iio.h>
18 #include "inv_mpu_iio.h"
20 static const struct regmap_config inv_mpu_regmap_config = {
25 static int inv_mpu_i2c_disable(struct iio_dev *indio_dev)
27 struct inv_mpu6050_state *st = iio_priv(indio_dev);
30 ret = inv_mpu6050_set_power_itg(st, true);
34 ret = regmap_write(st->map, INV_MPU6050_REG_USER_CTRL,
35 INV_MPU6050_BIT_I2C_IF_DIS);
37 inv_mpu6050_set_power_itg(st, false);
41 return inv_mpu6050_set_power_itg(st, false);
44 static int inv_mpu_probe(struct spi_device *spi)
46 struct regmap *regmap;
47 const struct spi_device_id *id = spi_get_device_id(spi);
48 const char *name = id ? id->name : NULL;
49 const int chip_type = id ? id->driver_data : 0;
51 regmap = devm_regmap_init_spi(spi, &inv_mpu_regmap_config);
53 dev_err(&spi->dev, "Failed to register spi regmap %d\n",
54 (int)PTR_ERR(regmap));
55 return PTR_ERR(regmap);
58 return inv_mpu_core_probe(regmap, spi->irq, name,
59 inv_mpu_i2c_disable, chip_type);
62 static int inv_mpu_remove(struct spi_device *spi)
64 return inv_mpu_core_remove(&spi->dev);
68 * device id table is used to identify what device can be
69 * supported by this driver
71 static const struct spi_device_id inv_mpu_id[] = {
72 {"mpu6000", INV_MPU6000},
76 MODULE_DEVICE_TABLE(spi, inv_mpu_id);
78 static const struct acpi_device_id inv_acpi_match[] = {
82 MODULE_DEVICE_TABLE(acpi, inv_acpi_match);
84 static struct spi_driver inv_mpu_driver = {
85 .probe = inv_mpu_probe,
86 .remove = inv_mpu_remove,
87 .id_table = inv_mpu_id,
89 .acpi_match_table = ACPI_PTR(inv_acpi_match),
90 .name = "inv-mpu6000-spi",
95 module_spi_driver(inv_mpu_driver);
97 MODULE_AUTHOR("Adriana Reus <adriana.reus@intel.com>");
98 MODULE_DESCRIPTION("Invensense device MPU6000 driver");
99 MODULE_LICENSE("GPL");