linux-kernel - [PATCH v4 0/4] iio: accel: adxl345: Split driver into core and I2C then add SPI support

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Date:   Sun, 26 Feb 2017 21:45:03 +0800
From:   Eva Rachel Retuya <eraretuya@...il.com>
To:     jic23@...nel.org, linux-iio@...r.kernel.org
Cc:     knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net,
        dmitry.torokhov@...il.com, michael.hennerich@...log.com,
        daniel.baluta@...il.com, amsfield22@...il.com,
        florian.vaussard@...g-vd.ch, linux-kernel@...r.kernel.org,
        robh+dt@...nel.org, mark.rutland@....com,
        devicetree@...r.kernel.org, Eva Rachel Retuya <eraretuya@...il.com>
Subject: [PATCH v4 0/4] iio: accel: adxl345: Split driver into core and I2C then add SPI support

This patchset modifies the adxl345 to use regmap. In doing so, we can
easily introduce SPI support and let regmap handle the rest.

Recap of basic features: read_raw for x, y and z axes, scale. After
applying this series, driver now supports the SPI protocol and enumeration
of device via device tree.

Changes from v3:
[PATCH 1/4] Documentation: dt-bindings: Document ADXL345 accelerometer binding
* None
[PATCH 2/4] iio: accel: adxl345: Use I2C regmap instead of direct I2C access
* Keep intact I2C client structure which was deleted from v3
* Make use of regmap_get_device to retrieve struct device, use these for
  debugging prints instead of &client->dev.
[PATCH 3/4] iio: accel: adxl345: Split driver into core and I2C
 and
[PATCH 4/4] iio: accel: adxl345: Add SPI support
* Revert to explicit and separate I2C and SPI configuration
* Add OF match table, make it enumerable in ACPI environment (Andy's suggestion)

Changes from v2:
* Drop PATCH 4 iio: accel: adxl345: Add ACPI support
* Add OF match table on both I2C and SPI files and document them

Changes from v1:
[PATCH 1/4]
* Move other deletions from patch 2 in here -- make it clear what got deleted
  and/or modified that is hard to see previously
* Introduce the driver header file "adxl345.h" here instead of doing it in the
  next patch
* Completely omit traces of i2c_client and let this file (adxl345.c) mirror the
  core file on the next patch.
* Improve debugging print about invalid device ID in probe.
[PATCH 2/4]
* Update Kconfig to Jonathan's preferred style
* Improve similarity index from 78% to 100% (rename detection)
[PATCH 4/4]
* Correct acpi_device_id: ADX0345 -> ADS0345

Eva Rachel Retuya (4):
  Documentation: dt-bindings: Document ADXL345 accelerometer binding
  iio: accel: adxl345: Use I2C regmap instead of direct I2C access
  iio: accel: adxl345: Split driver into core and I2C
  iio: accel: adxl345: Add SPI support

 .../devicetree/bindings/iio/accel/adxl345.txt      | 38 +++++++++
 drivers/iio/accel/Kconfig                          | 26 ++++++-
 drivers/iio/accel/Makefile                         |  4 +-
 drivers/iio/accel/adxl345.h                        | 18 +++++
 drivers/iio/accel/{adxl345.c => adxl345_core.c}    | 89 +++++++++-------------
 drivers/iio/accel/adxl345_i2c.c                    | 78 +++++++++++++++++++
 drivers/iio/accel/adxl345_spi.c                    | 83 ++++++++++++++++++++
 7 files changed, 281 insertions(+), 55 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/iio/accel/adxl345.txt
 create mode 100644 drivers/iio/accel/adxl345.h
 rename drivers/iio/accel/{adxl345.c => adxl345_core.c} (62%)
 create mode 100644 drivers/iio/accel/adxl345_i2c.c
 create mode 100644 drivers/iio/accel/adxl345_spi.c

-- 
2.7.4