114 lines
2.9 KiB
C
114 lines
2.9 KiB
C
/*
|
|
* Copyright (C) 2015 Intel Corporation Inc.
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/acpi.h>
|
|
#include <linux/spi/spi.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/iio/iio.h>
|
|
#include "inv_mpu_iio.h"
|
|
|
|
static const struct regmap_config inv_mpu_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
};
|
|
|
|
static int inv_mpu_i2c_disable(struct iio_dev *indio_dev)
|
|
{
|
|
struct inv_mpu6050_state *st = iio_priv(indio_dev);
|
|
int ret = 0;
|
|
|
|
ret = inv_mpu6050_set_power_itg(st, true);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = regmap_write(st->map, INV_MPU6050_REG_USER_CTRL,
|
|
INV_MPU6050_BIT_I2C_IF_DIS);
|
|
if (ret) {
|
|
inv_mpu6050_set_power_itg(st, false);
|
|
return ret;
|
|
}
|
|
|
|
return inv_mpu6050_set_power_itg(st, false);
|
|
}
|
|
|
|
static int inv_mpu_probe(struct spi_device *spi)
|
|
{
|
|
struct regmap *regmap;
|
|
const struct spi_device_id *spi_id;
|
|
const struct acpi_device_id *acpi_id;
|
|
const char *name = NULL;
|
|
enum inv_devices chip_type;
|
|
|
|
if ((spi_id = spi_get_device_id(spi))) {
|
|
chip_type = (enum inv_devices)spi_id->driver_data;
|
|
name = spi_id->name;
|
|
} else if ((acpi_id = acpi_match_device(spi->dev.driver->acpi_match_table, &spi->dev))) {
|
|
chip_type = (enum inv_devices)acpi_id->driver_data;
|
|
} else {
|
|
return -ENODEV;
|
|
}
|
|
|
|
regmap = devm_regmap_init_spi(spi, &inv_mpu_regmap_config);
|
|
if (IS_ERR(regmap)) {
|
|
dev_err(&spi->dev, "Failed to register spi regmap %d\n",
|
|
(int)PTR_ERR(regmap));
|
|
return PTR_ERR(regmap);
|
|
}
|
|
|
|
return inv_mpu_core_probe(regmap, spi->irq, name,
|
|
inv_mpu_i2c_disable, chip_type);
|
|
}
|
|
|
|
static int inv_mpu_remove(struct spi_device *spi)
|
|
{
|
|
return inv_mpu_core_remove(&spi->dev);
|
|
}
|
|
|
|
/*
|
|
* device id table is used to identify what device can be
|
|
* supported by this driver
|
|
*/
|
|
static const struct spi_device_id inv_mpu_id[] = {
|
|
{"mpu6000", INV_MPU6000},
|
|
{"mpu6500", INV_MPU6500},
|
|
{"mpu9150", INV_MPU9150},
|
|
{"mpu9250", INV_MPU9250},
|
|
{"icm20608", INV_ICM20608},
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(spi, inv_mpu_id);
|
|
|
|
static const struct acpi_device_id inv_acpi_match[] = {
|
|
{"INVN6000", INV_MPU6000},
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(acpi, inv_acpi_match);
|
|
|
|
static struct spi_driver inv_mpu_driver = {
|
|
.probe = inv_mpu_probe,
|
|
.remove = inv_mpu_remove,
|
|
.id_table = inv_mpu_id,
|
|
.driver = {
|
|
.acpi_match_table = ACPI_PTR(inv_acpi_match),
|
|
.name = "inv-mpu6000-spi",
|
|
.pm = &inv_mpu_pmops,
|
|
},
|
|
};
|
|
|
|
module_spi_driver(inv_mpu_driver);
|
|
|
|
MODULE_AUTHOR("Adriana Reus <adriana.reus@intel.com>");
|
|
MODULE_DESCRIPTION("Invensense device MPU6000 driver");
|
|
MODULE_LICENSE("GPL");
|