Add basic I2C support for the Bosch BMI270 IMU.

References:
https://www.bosch-sensortec.com/products/motion-sensors/imus/bmi270/

Signed-off-by: Alex Lanzano <lanzano.alex@gmail.com>
---
Changes in v4:
- Include linux/bitfield.h to bmi270_core.c
- Add comments documenting sleep functions
- Increase configuration delay to be inline with datasheet

Changes in v3:
- Remove code pertaining to buffer / triggered buffer
- Move register definitions from struct to defines
- Add bit mask defines for registers and replace hardcoded values
- Create macros for accel and gryo channels
- Code style cleanup

Changes in v2:
- Remove spi example in binding documentation
- Add more properties to i2c example in binding documentation
---

Alex Lanzano (2):
  dt-bindings: iio: imu: add bmi270 bindings
  iio: imu: Add i2c driver for bmi270 imu

 .../bindings/iio/imu/bosch,bmi270.yaml        |  77 ++++++
 MAINTAINERS                                   |   7 +
 drivers/iio/imu/Kconfig                       |   1 +
 drivers/iio/imu/Makefile                      |   1 +
 drivers/iio/imu/bmi270/Kconfig                |  21 ++
 drivers/iio/imu/bmi270/Makefile               |   6 +
 drivers/iio/imu/bmi270/bmi270.h               |  62 +++++
 drivers/iio/imu/bmi270/bmi270_core.c          | 258 ++++++++++++++++++
 drivers/iio/imu/bmi270/bmi270_i2c.c           |  48 ++++
 9 files changed, 481 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/imu/bosch,bmi270.yaml
 create mode 100644 drivers/iio/imu/bmi270/Kconfig
 create mode 100644 drivers/iio/imu/bmi270/Makefile
 create mode 100644 drivers/iio/imu/bmi270/bmi270.h
 create mode 100644 drivers/iio/imu/bmi270/bmi270_core.c
 create mode 100644 drivers/iio/imu/bmi270/bmi270_i2c.c

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2.46.0