linux-kernel - [PATCH v8 0/2] iio: imu: smi240: add bosch smi240 driver

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Message-ID: <20240923124017.43867-1-Jianping.Shen@de.bosch.com>
Date: Mon, 23 Sep 2024 14:40:15 +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 v8 0/2] iio: imu: smi240: add bosch smi240 driver

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

Add the iio driver for bosch imu smi240. The smi240 is a combined
three axis angular rate and three axis acceleration sensor module
with a measurement range of +/-300°/s and up to 16g. This driver
provides raw data access for each axis through sysfs, and tiggered
buffer for continuous sampling. A synchronous acc and gyro sampling
can be triggered by setting the capture bit in spi read command.

dt-bindings: 
v1 -> v2
    - Add more detail in description
    - Add maintainer
    - Add vdd and vddio power supply
    - Use generic node name
    - Order the properties according to DTS coding style

v2 -> v3
    - Improve description
    - Improve supply definition
    - Make supply definition as required
    - Add supply definition in example

v3 -> v4
    - No changes

v4 -> v5
    - No changes

v5 -> v6
    - Fix checkpatch findings

v6 -> v7
    - No changes

v7 -> v8
    - No changes

imu driver:
v1 -> v2
    - Use regmap for register access
    - Redefine channel for each singel axis
    - Provide triggered buffer
    - Fix findings in Kconfig
    - Remove unimportant functions

v2 -> v3
    - Use enum für capture mode
    - Using spi default init value instead manual init 
    - remove duplicated module declaration
    - Fix code to avoid warning

v3 -> v4
    - Use DMA safe buffer
    - Use channel info instead of custom ABI
    - Fix other findings

v4 -> v5
    - Merge the implementation in one simple file
    - Add channel info for acc/gyro data channel
    - Fix other findings

v5 -> v6
    - Fix checkpatch findings
    - Fix review findings

v6 -> v7
    - Fix offset and scale

v7 -> v8
    - Use memcpy in spi write to keep CPU endian
    - Fix some minor findings

Shen Jianping (2):
  dt-bindings: iio: imu: smi240: add Bosch smi240
  iio: imu: smi240: add driver

 .../bindings/iio/imu/bosch,smi240.yaml        |  51 ++
 drivers/iio/imu/Kconfig                       |  14 +
 drivers/iio/imu/Makefile                      |   2 +
 drivers/iio/imu/smi240.c                      | 622 ++++++++++++++++++
 4 files changed, 689 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml
 create mode 100644 drivers/iio/imu/smi240.c

-- 
2.34.1