[PATCH v3 0/5] iio: common: ssp_sensors: Add sensorhub driver

[Karol Wrona]

This patchset adds support for sensorhub. It is an external mcu which
manages and collects data from several sensors i.e. on Galaxy Gear 2 watch.

It contains:
- spi driver for sensorhub device
- DT binding for the device
- IIO common utils for ssp sensors (iio kfifo setup helpers, pre/post callbacks)
- IIO accelerometer driver
- IIO gyroscope driver

For now the driver supports "traditional" sensors but new ones types are
intended to be used.

>From v1:
  - Adopted to new stm32fwu v5
  - Fixed sensors' data process callbacks
  - Fixed comments style

>From v2:
  - Fixes after Hartmut Knaack review
  - Sensorhub driver was moved from misc to iio after the discussion with Arnd
    and Jonathan
  - Firmware upgrade is not supported in this patchset. I hope it will be
    applied when it will find its own place in the tree.



Karol Wrona (5):
  iio: common: ssp_sensors: Add sensorhub driver
  iio: sensorhub: Add sensorhub bindings
  iio: common: ssp_sensors: Add sensorhub iio commons
  iio: common: ssp_sensors: Add sensorhub accelerometer sensor
  iio: common: ssp_sensors: Add sensorhub gyroscope sensor

 .../devicetree/bindings/iio/sensorhub.txt          |   46 ++
 drivers/iio/accel/Makefile                         |    1 +
 drivers/iio/accel/ssp_accel_sensor.c               |  203 ++++++
 drivers/iio/common/Kconfig                         |    1 +
 drivers/iio/common/Makefile                        |    1 +
 drivers/iio/common/ssp_sensors/Kconfig             |   24 +
 drivers/iio/common/ssp_sensors/Makefile            |    6 +
 drivers/iio/common/ssp_sensors/ssp.h               |  254 +++++++
 drivers/iio/common/ssp_sensors/ssp_dev.c           |  693 ++++++++++++++++++++
 drivers/iio/common/ssp_sensors/ssp_iio.c           |   82 +++
 drivers/iio/common/ssp_sensors/ssp_iio_sensor.h    |   56 ++
 drivers/iio/common/ssp_sensors/ssp_spi.c           |  644 ++++++++++++++++++
 drivers/iio/gyro/Makefile                          |    2 +
 drivers/iio/gyro/ssp_gyro_sensor.c                 |  202 ++++++
 include/linux/iio/common/ssp_sensors.h             |   80 +++
 15 files changed, 2295 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/sensorhub.txt
 create mode 100644 drivers/iio/accel/ssp_accel_sensor.c
 create mode 100644 drivers/iio/common/ssp_sensors/Kconfig
 create mode 100644 drivers/iio/common/ssp_sensors/Makefile
 create mode 100644 drivers/iio/common/ssp_sensors/ssp.h
 create mode 100644 drivers/iio/common/ssp_sensors/ssp_dev.c
 create mode 100644 drivers/iio/common/ssp_sensors/ssp_iio.c
 create mode 100644 drivers/iio/common/ssp_sensors/ssp_iio_sensor.h
 create mode 100644 drivers/iio/common/ssp_sensors/ssp_spi.c
 create mode 100644 drivers/iio/gyro/ssp_gyro_sensor.c
 create mode 100644 include/linux/iio/common/ssp_sensors.h

-- 
1.7.9.5

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