linux-kernel - [PATCH v4 0/2] iio: imu: smi330: add bosch smi330 driver

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Message-ID: <20250915160934.89208-1-Jianping.Shen@de.bosch.com>
Date: Mon, 15 Sep 2025 18:09:32 +0200
From: <Jianping.Shen@...bosch.com>
To: <jic23@...nel.org>, <lars@...afoo.de>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>, <dima.fedrau@...il.com>,
	<marcelo.schmitt1@...il.com>, <linux-iio@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<Jianping.Shen@...bosch.com>, <Christian.Lorenz3@...bosch.com>,
	<Ulrike.Frauendorf@...bosch.com>, <Kai.Dolde@...bosch.com>
Subject: [PATCH v4 0/2] iio: imu: smi330: add bosch smi330 driver

From: Jianping Shen <Jianping.Shen@...bosch.com>

Add the iio driver for bosch imu smi330. The smi330 is a combined
three axis angular rate and three axis acceleration sensor module.
This driver provides raw data access for each axis through sysfs, 
and tiggered buffer for continuous sampling.

dt-bindings:
v1 -> v2
    - Add missing type to drive-open-drain
    - Adapt description of drive-open-drain

v2 -> v3
    - No Changes

v3 -> v4
    - No Changes

imu driver:
v1 -> v2
    - Strip back to a more minimal initial driver

v2 -> v3
    - reorganize the driver as 1 core module, 1 I2C module, and 1 SPI module.
    - remove build time INT pin choice
    - change temperature channel definition
    - improved reading data from sensor
    - simplified timestamp acquisition
    - some other minor finding fixes

v3 -> v4
    - move #define from header to c file
    - add sanity check to i2c message size
    - use available_scan_masks to simplfy the copying data to buffer (dependent on [PATCH RFT] iio: Fix core buffer demux failure to account for unwanted channels at tail)
    - allow setting output data rate for acc and gyro separately
    - some other minor finding fixes

Jianping Shen (2):
  dt-bindings: iio: imu: smi330: Add binding
  iio: imu: smi330: Add driver

 .../bindings/iio/imu/bosch,smi330.yaml        |  90 ++
 drivers/iio/imu/Kconfig                       |   1 +
 drivers/iio/imu/Makefile                      |   1 +
 drivers/iio/imu/smi330/Kconfig                |  39 +
 drivers/iio/imu/smi330/Makefile               |   7 +
 drivers/iio/imu/smi330/smi330.h               |  25 +
 drivers/iio/imu/smi330/smi330_core.c          | 919 ++++++++++++++++++
 drivers/iio/imu/smi330/smi330_i2c.c           | 133 +++
 drivers/iio/imu/smi330/smi330_spi.c           |  85 ++
 9 files changed, 1300 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/imu/bosch,smi330.yaml
 create mode 100644 drivers/iio/imu/smi330/Kconfig
 create mode 100644 drivers/iio/imu/smi330/Makefile
 create mode 100644 drivers/iio/imu/smi330/smi330.h
 create mode 100644 drivers/iio/imu/smi330/smi330_core.c
 create mode 100644 drivers/iio/imu/smi330/smi330_i2c.c
 create mode 100644 drivers/iio/imu/smi330/smi330_spi.c

-- 
2.34.1