[PATCH v4 0/1] iio: stx104: Add IIO support for the ADC channels

[William Breathitt Gray]

Changes in v4:
  - Replace "DAC" with "IIO" in the MAINTAINERS file entry for the STX104 since
    this driver now supports the ADC functionality rather than simply the DAC
Changes in v3:
  - Squash move patch as unneeded thanks to "git format-patch -M"
  - Fix multiline comment syntax for value conversion math explanation
  - Select between two const iio_chan_spec structures in order to support
    differential input channels configuration correctly for multiple devices
Changes in v2:
  - IIO_CHAN_INFO_RAW mask used for analog input channels
  - STX104_ prefix added to IN_CHAN_OFFSET define
  - STX104_MAX_NUM_CHAN define removed as unnecessary
  - Whitespace added to pad comment about ADC sample capture and completion wait
  - Switch statement in write_raw callback refactored to return 0
  - Comma added to last element initialization of stx104_info
  - Comment added to warn why stx104_channels is not const
  - Comment added to explain GPIO offset in gpio_get_direction callback
  - ARRAY_SIZE macro utilized to get number of channels in stx104_channels
  - Replace devm_iio_device_register with iio_device_register call and
    respective iio_device_unregister call
  - Perform GPIO chip registration before iio_device_register to prevent race
    condition

The first patch of version 2 of this patchset ("iio: stx104: Unregister IIO
device on remove callback") has been removed from this patchset since it was
picked up in the iio.git fixes-togreg-post-rc1 branch.

The move patch of version 2 of this patchset has been squashed with the ADC
support implementation code since the "git format-patch -M" command has been
used to clarify the rename of the stx104.c file from the dac directory to the
adc directory.

William Breathitt Gray (1):
  iio: stx104: Add IIO support for the ADC channels

 MAINTAINERS                       |   4 +-
 drivers/iio/adc/Kconfig           |  15 ++++
 drivers/iio/adc/Makefile          |   1 +
 drivers/iio/{dac => adc}/stx104.c | 157 ++++++++++++++++++++++++++++++++------
 drivers/iio/dac/Kconfig           |  10 ---
 drivers/iio/dac/Makefile          |   1 -
 6 files changed, 151 insertions(+), 37 deletions(-)
 rename drivers/iio/{dac => adc}/stx104.c (59%)

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2.7.3