Complement the ad4000 driver with a timestamp channel, a minor adjust in
transfer timing, and support for single-channel PulSAR devices.

This series was tested with ADAQ4003, AD7687, and AD7691 on CoraZ7 board.

Link to v1: https://lore.kernel.org/linux-iio/cover.1731626099.git.marcelo.schmitt@analog.com/

Change log v1 -> v2
- Added Suggested-by and Reviewed-by tags.
[IIO]
- Commented the removal of unused AD4000_TQUIET1_NS define in commit body.
- Made a common macro to assign ad4000_time_spec.
- Explicitly initialized PulSAR t_quiet2_ns with 0 as those don't need any quiet time.
- Improved PulSAR support commit description with more context.
- Dropped support for AD7694.
[Device tree]
- Made "cs" the default adi,sdi-pin value for PulSAR devices.

Additional comments in patch number 1.

Marcelo Schmitt (4):
  dt-bindings: iio: adc: adi,ad4000: Add PulSAR
  iio: adc: ad4000: Add timestamp channel
  iio: adc: ad4000: Use device specific timing for SPI transfers
  iio: adc: ad4000: Add support for PulSAR devices

 .../bindings/iio/adc/adi,ad4000.yaml          |  71 +++++
 drivers/iio/adc/ad4000.c                      | 290 +++++++++++++++---
 2 files changed, 310 insertions(+), 51 deletions(-)


base-commit: 9dd2270ca0b38ee16094817f4a53e7ba78e31567
-- 
2.45.2