linux-kernel - [PATCH v3 0/2] Add ADXL367 driver

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Message-Id: <20211217114548.1659721-1-cosmin.tanislav@analog.com>
Date:   Fri, 17 Dec 2021 13:45:46 +0200
From:   Cosmin Tanislav <demonsingur@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     cosmin.tanislav@...log.com, demonsingur@...il.com,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Rob Herring <robh+dt@...nel.org>, linux-iio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 0/2] Add ADXL367 driver

The ADXL367 is an ultralow power, 3-axis MEMS accelerometer.

The ADXL367 does not alias input signals to achieve ultralow power
consumption, it samples the full bandwidth of the sensor at all
data rates. Measurement ranges of +-2g, +-4g, and +-8g are available,
with a resolution of 0.25mg/LSB on the +-2 g range.

In addition to its ultralow power consumption, the ADXL367
has many features to enable true system level power reduction.
It includes a deep multimode output FIFO, a built-in micropower
temperature sensor, and an internal ADC for synchronous conversion
of an additional analog input.

V1 -> V2
 * add support for vdd and vddio supplies
 * lock fifo_watermark retrieval
 * fix indentation of sysfs_emit for fifo_mode
 * dt-bindings: add spi-max-frequency: true
 * dt-bindings: remove cs-gpios property
 * dt-bindings: remove status property
 * dt-bindings: add support for vdd

V2 -> V3
 * MAINTAINERS: use wildcard for adxl367
 * dt-bindings: adxl367@...r -> accelerometer@...r
 * put asm include after linux includes
 * drop registers accessed implicitly
 * fifo_full -> fifo_watermark
 * print expected device id
 * remove INDIO_BUFFER_HARDWARE
 * inline ADXL367_EVENT macro
 * inline ADXL367_14BIT_SCAN_INFO
 * inline regulator enum
 * remove of.h in spi driver
 * cast const void * to const u8 * in spi read
 * switch to trigger-less buffer
 * increase reset time as advised by hardware team
 * let iio framework validate available channel masks
 * enable adc or temp channel automatically on single read
 * wait for 100ms after enabling adc or temp for output
   to settle on single read (waiting on hardware team input)
 * enable adc or temp channel automatically on buffered read
 * claim direct mode when setting range
 * claim direct mode when setting odr
 * claim direct mode when setting event config
 * sort status masks in descending bit order
 * hardcode indio_dev name
 * add some comments regarding spi message layout
 * use bulk_write for activity and inactivity threshold
 * use bulk_write for inactivity time
 * use bool as return type of fifo format finding function
 * remove shift from channels scan type

Cosmin Tanislav (2):
  dt-bindings: iio: accel: add ADXL367
  iio: accel: add ADXL367 driver

 .../bindings/iio/accel/adi,adxl367.yaml       |   79 +
 MAINTAINERS                                   |    8 +
 drivers/iio/accel/Kconfig                     |   27 +
 drivers/iio/accel/Makefile                    |    3 +
 drivers/iio/accel/adxl367.c                   | 1617 +++++++++++++++++
 drivers/iio/accel/adxl367.h                   |   23 +
 drivers/iio/accel/adxl367_i2c.c               |   89 +
 drivers/iio/accel/adxl367_spi.c               |  163 ++
 8 files changed, 2009 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/accel/adi,adxl367.yaml
 create mode 100644 drivers/iio/accel/adxl367.c
 create mode 100644 drivers/iio/accel/adxl367.h
 create mode 100644 drivers/iio/accel/adxl367_i2c.c
 create mode 100644 drivers/iio/accel/adxl367_spi.c

-- 
2.34.1