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iio: accel: bmi088: add i2c support for bmi088 accel driver 

The BMI088, BMI085 and BMI090L accelerometer also support
I2C protocol, so let's add the missing I2C support.

The I2C interface of the {BMI085,BMI088,BMI090L} is compatible with
the I2C Specification UM10204 Rev. 03 (19 June 2007), available at
http://www.nxp.com. The {BMI085,BMI088,BMI090L} supports I2C standard
mode and fast mode, only 7-bit address mode is supported.

Datasheet: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmi085-ds001.pdf
Datasheet: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmi088-ds001.pdf
Datasheet: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4807/BST-BMI090L-DS000-00.pdf
Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312191325.jfiyeL5F-lkp@intel.com/
Link: https://lore.kernel.org/r/20231219150440.264033-1-jerrysteve1101@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jun Yan 2023-12-19 23:04:40 +08:00 committed by Jonathan Cameron
parent 3ab574ee39
commit b2463c49ab
3 changed files with 77 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/iio/accel/Kconfig
View File

@ -254,11 +254,11 @@ config BMC150_ACCEL_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
select BMI088_ACCEL_SPI if SPI
select BMI088_ACCEL_I2C if I2C
help
Say yes here to build support for the following Bosch accelerometers:
BMI088, BMI085, BMI090L. Note that all of these are combo module that
@ -267,6 +267,10 @@ config BMI088_ACCEL
This driver only implements the accelerometer part, which has its own
address and register map. BMG160 provides the gyroscope driver.
config BMI088_ACCEL_I2C
tristate
select REGMAP_I2C
config BMI088_ACCEL_SPI
tristate
select REGMAP_SPI

1
drivers/iio/accel/Makefile
View File

@ -30,6 +30,7 @@ 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-$(CONFIG_BMI088_ACCEL_I2C) += bmi088-accel-i2c.o
obj-$(CONFIG_BMI088_ACCEL_SPI) += bmi088-accel-spi.o
obj-$(CONFIG_DA280) += da280.o
obj-$(CONFIG_DA311) += da311.o

70
drivers/iio/accel/bmi088-accel-i2c.c Normal file
View File

@ -0,0 +1,70 @@
// SPDX-License-Identifier: GPL-2.0
/*
* 3-axis accelerometer driver supporting following Bosch-Sensortec chips:
* - BMI088
* - BMI085
* - BMI090L
*
* Copyright 2023 Jun Yan <jerrysteve1101@gmail.com>
*/
#include <linux/i2c.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include "bmi088-accel.h"
static int bmi088_accel_probe(struct i2c_client *i2c)
{
struct regmap *regmap;
const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
regmap = devm_regmap_init_i2c(i2c, &bmi088_regmap_conf);
if (IS_ERR(regmap)) {
dev_err(&i2c->dev, "Failed to initialize i2c regmap\n");
return PTR_ERR(regmap);
}
return bmi088_accel_core_probe(&i2c->dev, regmap, i2c->irq,
id->driver_data);
}
static void bmi088_accel_remove(struct i2c_client *i2c)
{
bmi088_accel_core_remove(&i2c->dev);
}
static const struct of_device_id bmi088_of_match[] = {
{ .compatible = "bosch,bmi085-accel" },
{ .compatible = "bosch,bmi088-accel" },
{ .compatible = "bosch,bmi090l-accel" },
{}
};
MODULE_DEVICE_TABLE(of, bmi088_of_match);
static const struct i2c_device_id bmi088_accel_id[] = {
{ "bmi085-accel", BOSCH_BMI085 },
{ "bmi088-accel", BOSCH_BMI088 },
{ "bmi090l-accel", BOSCH_BMI090L },
{}
};
MODULE_DEVICE_TABLE(i2c, bmi088_accel_id);
static struct i2c_driver bmi088_accel_driver = {
.driver = {
.name = "bmi088_accel_i2c",
.pm = pm_ptr(&bmi088_accel_pm_ops),
.of_match_table = bmi088_of_match,
},
.probe = bmi088_accel_probe,
.remove = bmi088_accel_remove,
.id_table = bmi088_accel_id,
};
module_i2c_driver(bmi088_accel_driver);
MODULE_AUTHOR("Jun Yan <jerrysteve1101@gmail.com>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("BMI088 accelerometer driver (I2C)");
MODULE_IMPORT_NS(IIO_BMI088);