[PATCH RFC 0/3] iio: adc: add new ad7625 driver

[Trevor Gamblin <tgamblin@baylibre.com>]

This series adds a new driver for the Analog Devices Inc. AD7625,
AD7626, AD7960, and AD7961. These chips are part of a family of
LVDS-based SAR ADCs. The initial driver implementation does not support
the devices' self-clocked mode, although that can be added later.

One aspect that is still uncertain is whether there should be a
devicetree property indicating if the DCO+/- pins are connected, so
specific feedback on that is appreciated.

The devices make use of two offset PWM signals, one to trigger
conversions and the other as a burst signal for transferring data to the
host. These rely on the new PWM waveform functionality being
reviewed in [1].

This work is being done by BayLibre and on behalf of Analog Devices
Inc., hence the maintainers are @analog.com.

Special thanks to David Lechner for his guidance and reviews.

Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
---
Trevor Gamblin (3):
      dt-bindings: iio: adc: add AD762x/AD796x ADCs
      iio: adc: ad7625: add driver
      docs: iio: new docs for ad7625 driver

 .../devicetree/bindings/iio/adc/adi,ad7625.yaml    | 176 ++++++
 Documentation/iio/ad7625.rst                       |  91 +++
 MAINTAINERS                                        |  11 +
 drivers/iio/adc/Kconfig                            |  15 +
 drivers/iio/adc/Makefile                           |   1 +
 drivers/iio/adc/ad7625.c                           | 626 +++++++++++++++++++++
 6 files changed, 920 insertions(+)
---
base-commit: ac6a258892793f0a255fe7084ec2b612131c67fc
change-id: 20240730-ad7625_r1-60d17ea28958

Best regards,
-- 
Trevor Gamblin <tgamblin@baylibre.com>