[PATCH 0/4] iio: adc: ade9000: add support for ADE9039

[Antoniu Miclaus <antoniu.miclaus@analog.com>]

Add support for the ADE9039, a polyphase energy monitoring device in the
ADE9000 family. It is register compatible with the ADE9000 for every
register the driver touches. The differences that matter here are:

 - full-scale codes match the ADE9078, not the ADE9000;
 - dip/swell detection and the digital integrator are both present;
 - there is no total reactive power: no AVAR at 0x211, no AVAROS at
   0x010, only the fundamental AFVAR and AFVAROS;
 - maximum SPI clock is 10 MHz, as on the ADE9078.

It is the first part needing dip/swell present together with total
reactive power absent, which the channel-array macro could not express.
Patch 1 adds a second selector argument for the reactive power entry; it
is a no-op for the existing parts, with the preprocessed ade9000_channels
and ade9078_channels tables byte identical before and after.

The missing total reactive power channel is omitted rather than
repointed at AFVAR, which would make in_power[0-2]_reactive_raw mean
total power on the ADE9000 and fundamental power on the ADE9039 with no
IIO modifier to tell them apart. The fundamental reactive energy
channels are unaffected.

Patch 4 also clears three stray characters left in the ade9000.rst
introduction by the ADE9430 merge resolution. Happy to split that out.

Antoniu Miclaus (4):
  iio: adc: ade9000: parameterise the reactive power channel
  dt-bindings: iio: adc: adi,ade9000: add adi,ade9039 compatible
  iio: adc: ade9000: add support for ADE9039
  docs: iio: ade9000: document ADE9039 support

 .../bindings/iio/adc/adi,ade9000.yaml         | 29 ++++++++------
 Documentation/iio/ade9000.rst                 | 24 +++++++-----
 drivers/iio/adc/Kconfig                       |  1 +
 drivers/iio/adc/ade9000.c                     | 39 ++++++++++++++++---
 4 files changed, 66 insertions(+), 27 deletions(-)


base-commit: a22dc7ebb21a6bd4c8b63bc2c1dd46a24945aae7
-- 
2.43.0