iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

iio: accel: Add support for the Bosch-Sensortec BMI088

Browse Source 
The BMI088 is a combined module with both accelerometer and gyroscope.
This adds the accelerometer driver support for the SPI interface.
The gyroscope part is already supported by the BMG160 driver.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210125150732.23873-2-mike.looijmans@topic.nl
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Mike Looijmans 2021-01-25 16:07:32 +01:00 committed by Jonathan Cameron
parent 14aae60174
commit c19ae6be75
5 changed files with 688 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/iio/accel/Kconfig
View File

@ -157,6 +157,24 @@ config BMC150_ACCEL_SPI
tristate
select REGMAP_SPI
config BMI088_ACCEL
tristate "Bosch BMI088 Accelerometer Driver"
depends on SPI
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
select REGMAP
select BMI088_ACCEL_SPI
help
Say yes here to build support for the Bosch BMI088 accelerometer.
This is a combo module with both accelerometer and gyroscope. This
driver only implements the accelerometer part, which has its own
address and register map. BMG160 provides the gyroscope driver.
config BMI088_ACCEL_SPI
tristate
select REGMAP_SPI
config DA280
tristate "MiraMEMS DA280 3-axis 14-bit digital accelerometer driver"
depends on I2C

2
drivers/iio/accel/Makefile
View File

@ -20,6 +20,8 @@ obj-$(CONFIG_BMA400_SPI) += bma400_spi.o
obj-$(CONFIG_BMC150_ACCEL) += bmc150-accel-core.o
obj-$(CONFIG_BMC150_ACCEL_I2C) += bmc150-accel-i2c.o
obj-$(CONFIG_BMC150_ACCEL_SPI) += bmc150-accel-spi.o
obj-$(CONFIG_BMI088_ACCEL) += bmi088-accel-core.o
obj-$(CONFIG_BMI088_ACCEL_SPI) += bmi088-accel-spi.o
obj-$(CONFIG_DA280) += da280.o
obj-$(CONFIG_DA311) += da311.o
obj-$(CONFIG_DMARD06) += dmard06.o

567
drivers/iio/accel/bmi088-accel-core.c Normal file
View File

@ -0,0 +1,567 @@
// SPDX-License-Identifier: GPL-2.0
/*
* 3-axis accelerometer driver supporting following Bosch-Sensortec chips:
* - BMI088
*
* Copyright (c) 2018-2021, Topic Embedded Products
*/
#include <linux/delay.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <asm/unaligned.h>
#include "bmi088-accel.h"
#define BMI088_ACCEL_REG_CHIP_ID 0x00
#define BMI088_ACCEL_REG_ERROR 0x02
#define BMI088_ACCEL_REG_INT_STATUS 0x1D
#define BMI088_ACCEL_INT_STATUS_BIT_DRDY BIT(7)
#define BMI088_ACCEL_REG_RESET 0x7E
#define BMI088_ACCEL_RESET_VAL 0xB6
#define BMI088_ACCEL_REG_PWR_CTRL 0x7D
#define BMI088_ACCEL_REG_PWR_CONF 0x7C
#define BMI088_ACCEL_REG_INT_MAP_DATA 0x58
#define BMI088_ACCEL_INT_MAP_DATA_BIT_INT1_DRDY BIT(2)
#define BMI088_ACCEL_INT_MAP_DATA_BIT_INT2_FWM BIT(5)
#define BMI088_ACCEL_REG_INT1_IO_CONF 0x53
#define BMI088_ACCEL_INT1_IO_CONF_BIT_ENABLE_OUT BIT(3)
#define BMI088_ACCEL_INT1_IO_CONF_BIT_LVL BIT(1)
#define BMI088_ACCEL_REG_INT2_IO_CONF 0x54
#define BMI088_ACCEL_INT2_IO_CONF_BIT_ENABLE_OUT BIT(3)
#define BMI088_ACCEL_INT2_IO_CONF_BIT_LVL BIT(1)
#define BMI088_ACCEL_REG_ACC_CONF 0x40
#define BMI088_ACCEL_MODE_ODR_MASK 0x0f
#define BMI088_ACCEL_REG_ACC_RANGE 0x41
#define BMI088_ACCEL_RANGE_3G 0x00
#define BMI088_ACCEL_RANGE_6G 0x01
#define BMI088_ACCEL_RANGE_12G 0x02
#define BMI088_ACCEL_RANGE_24G 0x03
#define BMI088_ACCEL_REG_TEMP 0x22
#define BMI088_ACCEL_REG_TEMP_SHIFT 5
#define BMI088_ACCEL_TEMP_UNIT 125
#define BMI088_ACCEL_TEMP_OFFSET 23000
#define BMI088_ACCEL_REG_XOUT_L 0x12
#define BMI088_ACCEL_AXIS_TO_REG(axis) \
(BMI088_ACCEL_REG_XOUT_L + (axis * 2))
#define BMI088_ACCEL_MAX_STARTUP_TIME_US 1000
#define BMI088_AUTO_SUSPEND_DELAY_MS 2000
#define BMI088_ACCEL_REG_FIFO_STATUS 0x0E
#define BMI088_ACCEL_REG_FIFO_CONFIG0 0x48
#define BMI088_ACCEL_REG_FIFO_CONFIG1 0x49
#define BMI088_ACCEL_REG_FIFO_DATA 0x3F
#define BMI088_ACCEL_FIFO_LENGTH 100
#define BMI088_ACCEL_FIFO_MODE_FIFO 0x40
#define BMI088_ACCEL_FIFO_MODE_STREAM 0x80
enum bmi088_accel_axis {
AXIS_X,
AXIS_Y,
AXIS_Z,
};
static const int bmi088_sample_freqs[] = {
12, 500000,
25, 0,
50, 0,
100, 0,
200, 0,
400, 0,
800, 0,
1600, 0,
};
/* Available OSR (over sampling rate) sets the 3dB cut-off frequency */
enum bmi088_osr_modes {
BMI088_ACCEL_MODE_OSR_NORMAL = 0xA,
BMI088_ACCEL_MODE_OSR_2 = 0x9,
BMI088_ACCEL_MODE_OSR_4 = 0x8,
};
/* Available ODR (output data rates) in Hz */
enum bmi088_odr_modes {
BMI088_ACCEL_MODE_ODR_12_5 = 0x5,
BMI088_ACCEL_MODE_ODR_25 = 0x6,
BMI088_ACCEL_MODE_ODR_50 = 0x7,
BMI088_ACCEL_MODE_ODR_100 = 0x8,
BMI088_ACCEL_MODE_ODR_200 = 0x9,
BMI088_ACCEL_MODE_ODR_400 = 0xa,
BMI088_ACCEL_MODE_ODR_800 = 0xb,
BMI088_ACCEL_MODE_ODR_1600 = 0xc,
};
struct bmi088_scale_info {
int scale;
u8 reg_range;
};
struct bmi088_accel_chip_info {
const char *name;
u8 chip_id;
const struct iio_chan_spec *channels;
int num_channels;
};
struct bmi088_accel_data {
struct regmap *regmap;
const struct bmi088_accel_chip_info *chip_info;
u8 buffer[2] ____cacheline_aligned; /* shared DMA safe buffer */
};
static const struct regmap_range bmi088_volatile_ranges[] = {
/* All registers below 0x40 are volatile, except the CHIP ID. */
regmap_reg_range(BMI088_ACCEL_REG_ERROR, 0x3f),
/* Mark the RESET as volatile too, it is self-clearing */
regmap_reg_range(BMI088_ACCEL_REG_RESET, BMI088_ACCEL_REG_RESET),
};
static const struct regmap_access_table bmi088_volatile_table = {
.yes_ranges = bmi088_volatile_ranges,
.n_yes_ranges = ARRAY_SIZE(bmi088_volatile_ranges),
};
const struct regmap_config bmi088_regmap_conf = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0x7E,
.volatile_table = &bmi088_volatile_table,
.cache_type = REGCACHE_RBTREE,
};
EXPORT_SYMBOL_GPL(bmi088_regmap_conf);
static int bmi088_accel_power_up(struct bmi088_accel_data *data)
{
int ret;
/* Enable accelerometer and temperature sensor */
ret = regmap_write(data->regmap, BMI088_ACCEL_REG_PWR_CTRL, 0x4);
if (ret)
return ret;
/* Datasheet recommends to wait at least 5ms before communication */
usleep_range(5000, 6000);
/* Disable suspend mode */
ret = regmap_write(data->regmap, BMI088_ACCEL_REG_PWR_CONF, 0x0);
if (ret)
return ret;
/* Recommended at least 1ms before further communication */
usleep_range(1000, 1200);
return 0;
}
static int bmi088_accel_power_down(struct bmi088_accel_data *data)
{
int ret;
/* Enable suspend mode */
ret = regmap_write(data->regmap, BMI088_ACCEL_REG_PWR_CONF, 0x3);
if (ret)
return ret;
/* Recommended at least 1ms before further communication */
usleep_range(1000, 1200);
/* Disable accelerometer and temperature sensor */
ret = regmap_write(data->regmap, BMI088_ACCEL_REG_PWR_CTRL, 0x0);
if (ret)
return ret;
/* Datasheet recommends to wait at least 5ms before communication */
usleep_range(5000, 6000);
return 0;
}
static int bmi088_accel_get_sample_freq(struct bmi088_accel_data *data,
int *val, int *val2)
{
unsigned int value;
int ret;
ret = regmap_read(data->regmap, BMI088_ACCEL_REG_ACC_CONF,
&value);
if (ret)
return ret;
value &= BMI088_ACCEL_MODE_ODR_MASK;
value -= BMI088_ACCEL_MODE_ODR_12_5;
value <<= 1;
if (value >= ARRAY_SIZE(bmi088_sample_freqs) - 1)
return -EINVAL;
*val = bmi088_sample_freqs[value];
*val2 = bmi088_sample_freqs[value + 1];
return IIO_VAL_INT_PLUS_MICRO;
}
static int bmi088_accel_set_sample_freq(struct bmi088_accel_data *data, int val)
{
unsigned int regval;
int index = 0;
while (index < ARRAY_SIZE(bmi088_sample_freqs) &&
bmi088_sample_freqs[index] != val)
index += 2;
if (index >= ARRAY_SIZE(bmi088_sample_freqs))
return -EINVAL;
regval = (index >> 1) + BMI088_ACCEL_MODE_ODR_12_5;
return regmap_update_bits(data->regmap, BMI088_ACCEL_REG_ACC_CONF,
BMI088_ACCEL_MODE_ODR_MASK, regval);
}
static int bmi088_accel_get_temp(struct bmi088_accel_data *data, int *val)
{
int ret;
s16 temp;
ret = regmap_bulk_read(data->regmap, BMI088_ACCEL_REG_TEMP,
&data->buffer, sizeof(__be16));
if (ret)
return ret;
/* data->buffer is cacheline aligned */
temp = be16_to_cpu(*(__be16 *)data->buffer);
*val = temp >> BMI088_ACCEL_REG_TEMP_SHIFT;
return IIO_VAL_INT;
}
static int bmi088_accel_get_axis(struct bmi088_accel_data *data,
struct iio_chan_spec const *chan,
int *val)
{
int ret;
s16 raw_val;
ret = regmap_bulk_read(data->regmap,
BMI088_ACCEL_AXIS_TO_REG(chan->scan_index),
data->buffer, sizeof(__le16));
if (ret)
return ret;
raw_val = le16_to_cpu(*(__le16 *)data->buffer);
*val = raw_val;
return IIO_VAL_INT;
}
static int bmi088_accel_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val, int *val2, long mask)
{
struct bmi088_accel_data *data = iio_priv(indio_dev);
struct device *dev = regmap_get_device(data->regmap);
int ret;
switch (mask) {
case IIO_CHAN_INFO_RAW:
switch (chan->type) {
case IIO_TEMP:
pm_runtime_get_sync(dev);
ret = bmi088_accel_get_temp(data, val);
goto out_read_raw_pm_put;
case IIO_ACCEL:
pm_runtime_get_sync(dev);
ret = iio_device_claim_direct_mode(indio_dev);
if (ret)
goto out_read_raw_pm_put;
ret = bmi088_accel_get_axis(data, chan, val);
iio_device_release_direct_mode(indio_dev);
if (!ret)
ret = IIO_VAL_INT;
goto out_read_raw_pm_put;
default:
return -EINVAL;
}
case IIO_CHAN_INFO_OFFSET:
switch (chan->type) {
case IIO_TEMP:
/* Offset applies before scale */
*val = BMI088_ACCEL_TEMP_OFFSET/BMI088_ACCEL_TEMP_UNIT;
return IIO_VAL_INT;
default:
return -EINVAL;
}
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_TEMP:
/* 0.125 degrees per LSB */
*val = BMI088_ACCEL_TEMP_UNIT;
return IIO_VAL_INT;
case IIO_ACCEL:
pm_runtime_get_sync(dev);
ret = regmap_read(data->regmap,
BMI088_ACCEL_REG_ACC_RANGE, val);
if (ret)
goto out_read_raw_pm_put;
*val2 = 15 - (*val & 0x3);
*val = 3 * 980;
ret = IIO_VAL_FRACTIONAL_LOG2;
goto out_read_raw_pm_put;
default:
return -EINVAL;
}
case IIO_CHAN_INFO_SAMP_FREQ:
pm_runtime_get_sync(dev);
ret = bmi088_accel_get_sample_freq(data, val, val2);
goto out_read_raw_pm_put;
default:
break;
}
return -EINVAL;
out_read_raw_pm_put:
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
return ret;
}
static int bmi088_accel_read_avail(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
const int **vals, int *type, int *length,
long mask)
{
switch (mask) {
case IIO_CHAN_INFO_SAMP_FREQ:
*type = IIO_VAL_INT_PLUS_MICRO;
*vals = bmi088_sample_freqs;
*length = ARRAY_SIZE(bmi088_sample_freqs);
return IIO_AVAIL_LIST;
default:
return -EINVAL;
}
}
static int bmi088_accel_write_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int val, int val2, long mask)
{
struct bmi088_accel_data *data = iio_priv(indio_dev);
struct device *dev = regmap_get_device(data->regmap);
int ret;
switch (mask) {
case IIO_CHAN_INFO_SAMP_FREQ:
pm_runtime_get_sync(dev);
ret = bmi088_accel_set_sample_freq(data, val);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
return ret;
default:
return -EINVAL;
}
}
#define BMI088_ACCEL_CHANNEL(_axis) { \
.type = IIO_ACCEL, \
.modified = 1, \
.channel2 = IIO_MOD_##_axis, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \
BIT(IIO_CHAN_INFO_SAMP_FREQ), \
.info_mask_shared_by_type_available = BIT(IIO_CHAN_INFO_SAMP_FREQ), \
.scan_index = AXIS_##_axis, \
}
static const struct iio_chan_spec bmi088_accel_channels[] = {
{
.type = IIO_TEMP,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_SCALE) |
BIT(IIO_CHAN_INFO_OFFSET),
.scan_index = -1,
},
BMI088_ACCEL_CHANNEL(X),
BMI088_ACCEL_CHANNEL(Y),
BMI088_ACCEL_CHANNEL(Z),
IIO_CHAN_SOFT_TIMESTAMP(3),
};
static const struct bmi088_accel_chip_info bmi088_accel_chip_info_tbl[] = {
[0] = {
.name = "bmi088a",
.chip_id = 0x1E,
.channels = bmi088_accel_channels,
.num_channels = ARRAY_SIZE(bmi088_accel_channels),
},
};
static const struct iio_info bmi088_accel_info = {
.read_raw = bmi088_accel_read_raw,
.write_raw = bmi088_accel_write_raw,
.read_avail = bmi088_accel_read_avail,
};
static const unsigned long bmi088_accel_scan_masks[] = {
BIT(AXIS_X) | BIT(AXIS_Y) | BIT(AXIS_Z),
0
};
static int bmi088_accel_chip_init(struct bmi088_accel_data *data)
{
struct device *dev = regmap_get_device(data->regmap);
int ret, i;
unsigned int val;
/* Do a dummy read to enable SPI interface, won't harm I2C */
regmap_read(data->regmap, BMI088_ACCEL_REG_INT_STATUS, &val);
/*
* Reset chip to get it in a known good state. A delay of 1ms after
* reset is required according to the data sheet
*/
ret = regmap_write(data->regmap, BMI088_ACCEL_REG_RESET,
BMI088_ACCEL_RESET_VAL);
if (ret)
return ret;
usleep_range(1000, 2000);
/* Do a dummy read again after a reset to enable the SPI interface */
regmap_read(data->regmap, BMI088_ACCEL_REG_INT_STATUS, &val);
/* Read chip ID */
ret = regmap_read(data->regmap, BMI088_ACCEL_REG_CHIP_ID, &val);
if (ret) {
dev_err(dev, "Error: Reading chip id\n");
return ret;
}
/* Validate chip ID */
for (i = 0; i < ARRAY_SIZE(bmi088_accel_chip_info_tbl); i++) {
if (bmi088_accel_chip_info_tbl[i].chip_id == val) {
data->chip_info = &bmi088_accel_chip_info_tbl[i];
break;
}
}
if (i == ARRAY_SIZE(bmi088_accel_chip_info_tbl)) {
dev_err(dev, "Invalid chip %x\n", val);
return -ENODEV;
}
return 0;
}
int bmi088_accel_core_probe(struct device *dev, struct regmap *regmap,
int irq, const char *name, bool block_supported)
{
struct bmi088_accel_data *data;
struct iio_dev *indio_dev;
int ret;
indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
if (!indio_dev)
return -ENOMEM;
data = iio_priv(indio_dev);
dev_set_drvdata(dev, indio_dev);
data->regmap = regmap;
ret = bmi088_accel_chip_init(data);
if (ret)
return ret;
indio_dev->dev.parent = dev;
indio_dev->channels = data->chip_info->channels;
indio_dev->num_channels = data->chip_info->num_channels;
indio_dev->name = name ? name : data->chip_info->name;
indio_dev->available_scan_masks = bmi088_accel_scan_masks;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &bmi088_accel_info;
/* Enable runtime PM */
pm_runtime_get_noresume(dev);
pm_runtime_set_suspended(dev);
pm_runtime_enable(dev);
/* We need ~6ms to startup, so set the delay to 6 seconds */
pm_runtime_set_autosuspend_delay(dev, 6000);
pm_runtime_use_autosuspend(dev);
pm_runtime_put(dev);
ret = iio_device_register(indio_dev);
if (ret)
dev_err(dev, "Unable to register iio device\n");
return ret;
}
EXPORT_SYMBOL_GPL(bmi088_accel_core_probe);
int bmi088_accel_core_remove(struct device *dev)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct bmi088_accel_data *data = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
pm_runtime_disable(dev);
pm_runtime_set_suspended(dev);
pm_runtime_put_noidle(dev);
bmi088_accel_power_down(data);
return 0;
}
EXPORT_SYMBOL_GPL(bmi088_accel_core_remove);
static int __maybe_unused bmi088_accel_runtime_suspend(struct device *dev)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct bmi088_accel_data *data = iio_priv(indio_dev);
return bmi088_accel_power_down(data);
}
static int __maybe_unused bmi088_accel_runtime_resume(struct device *dev)
{
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct bmi088_accel_data *data = iio_priv(indio_dev);
return bmi088_accel_power_up(data);
}
const struct dev_pm_ops bmi088_accel_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
SET_RUNTIME_PM_OPS(bmi088_accel_runtime_suspend,
bmi088_accel_runtime_resume, NULL)
};
EXPORT_SYMBOL_GPL(bmi088_accel_pm_ops);
MODULE_AUTHOR("Niek van Agt <niek.van.agt@topicproducts.com>");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("BMI088 accelerometer driver (core)");

83
drivers/iio/accel/bmi088-accel-spi.c Normal file
View File

@ -0,0 +1,83 @@
// SPDX-License-Identifier: GPL-2.0
/*
* 3-axis accelerometer driver supporting following Bosch-Sensortec chips:
* - BMI088
*
* Copyright (c) 2018-2020, Topic Embedded Products
*/
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>
#include "bmi088-accel.h"
static int bmi088_regmap_spi_write(void *context, const void *data, size_t count)
{
struct spi_device *spi = context;
/* Write register is same as generic SPI */
return spi_write(spi, data, count);
}
static int bmi088_regmap_spi_read(void *context, const void *reg,
size_t reg_size, void *val, size_t val_size)
{
struct spi_device *spi = context;
u8 addr[2];
addr[0] = *(u8 *)reg;
addr[0] |= BIT(7); /* Set RW = '1' */
addr[1] = 0; /* Read requires a dummy byte transfer */
return spi_write_then_read(spi, addr, sizeof(addr), val, val_size);
}
static struct regmap_bus bmi088_regmap_bus = {
.write = bmi088_regmap_spi_write,
.read = bmi088_regmap_spi_read,
};
static int bmi088_accel_probe(struct spi_device *spi)
{
struct regmap *regmap;
const struct spi_device_id *id = spi_get_device_id(spi);
regmap = devm_regmap_init(&spi->dev, &bmi088_regmap_bus,
spi, &bmi088_regmap_conf);
if (IS_ERR(regmap)) {
dev_err(&spi->dev, "Failed to initialize spi regmap\n");
return PTR_ERR(regmap);
}
return bmi088_accel_core_probe(&spi->dev, regmap, spi->irq, id->name,
true);
}
static int bmi088_accel_remove(struct spi_device *spi)
{
return bmi088_accel_core_remove(&spi->dev);
}
static const struct spi_device_id bmi088_accel_id[] = {
{"bmi088-accel", },
{}
};
MODULE_DEVICE_TABLE(spi, bmi088_accel_id);
static struct spi_driver bmi088_accel_driver = {
.driver = {
.name = "bmi088_accel_spi",
.pm = &bmi088_accel_pm_ops,
},
.probe = bmi088_accel_probe,
.remove = bmi088_accel_remove,
.id_table = bmi088_accel_id,
};
module_spi_driver(bmi088_accel_driver);
MODULE_AUTHOR("Niek van Agt <niek.van.agt@topicproducts.com>");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("BMI088 accelerometer driver (SPI)");

18
drivers/iio/accel/bmi088-accel.h Normal file
View File

@ -0,0 +1,18 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef BMI088_ACCEL_H
#define BMI088_ACCEL_H
#include <linux/pm.h>
#include <linux/regmap.h>
#include <linux/types.h>
struct device;
extern const struct regmap_config bmi088_regmap_conf;
extern const struct dev_pm_ops bmi088_accel_pm_ops;
int bmi088_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
const char *name, bool block_supported);
int bmi088_accel_core_remove(struct device *dev);
#endif /* BMI088_ACCEL_H */