linux-kernel - [PATCH v5 0/7] Add SPI offload support to AD4030

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Message-ID: <cover.1760479760.git.marcelo.schmitt@analog.com>
Date: Tue, 14 Oct 2025 19:20:49 -0300
From: Marcelo Schmitt <marcelo.schmitt@...log.com>
To: <linux-iio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <jic23@...nel.org>, <michael.hennerich@...log.com>, <nuno.sa@...log.com>,
        <eblanc@...libre.com>, <dlechner@...libre.com>, <andy@...nel.org>,
        <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <corbet@....net>, <marcelo.schmitt1@...il.com>
Subject: [PATCH v5 0/7] Add SPI offload support to AD4030

Hi,

Thanks for all reviews and suggestions to v4.

Most changes in v5 are improvements to the SPI offload support patch.

Change log v4 -> v5
[PWM]
- Dropped PWM patch.
  Since there are no longer changes to the PWM subsystem, I've also dropped the
  associated addresses from the recipients list.
[DT]
- Dropped leftover adi,pga-value.
[IIO]
- Made Kconfig entry depend on PWM and select other features.
- Reused ad4030_exit_config_mode() in ad4030_offload_buffer_postenable().
- Dropped common-mode voltage support on SPI offload setup.
- Adjusted offload trigger period calculation.
- No longer setting data frame mode from ad4030_set_avg_frame_len().
- Rearranged code to reduce patch diff.
- Dropped leftover adaq4216_hw_gains_db[].
- Tweaked ad4030_get_chan_scale() so val and val2 don't get overwritten.

Note there is also a patch to the SPI subsystem [1] that contains a feature
required by AD4030 offload support.

[1]: https://lore.kernel.org/linux-spi/cd315e95c0bd8523f00e91c400abcd6a418e5924.1759760519.git.marcelo.schmitt@analog.com/

Thanks,
Marcelo


Marcelo Schmitt (7):
  dt-bindings: iio: adc: adi,ad4030: Reference spi-peripheral-props
  Docs: iio: ad4030: Add double PWM SPI offload doc
  dt-bindings: iio: adc: adi,ad4030: Add PWM
  iio: adc: ad4030: Use BIT macro to improve code readability
  iio: adc: ad4030: Add SPI offload support
  dt-bindings: iio: adc: adi,ad4030: Add ADAQ4216 and ADAQ4224
  iio: adc: ad4030: Add support for ADAQ4216 and ADAQ4224

 .../bindings/iio/adc/adi,ad4030.yaml          |  76 ++-
 Documentation/iio/ad4030.rst                  |  39 ++
 drivers/iio/adc/Kconfig                       |   5 +
 drivers/iio/adc/ad4030.c                      | 636 +++++++++++++++++-
 4 files changed, 733 insertions(+), 23 deletions(-)


base-commit: 4b17a60d1e1c2d9d2ccbd58642f6f4ac2fa364ba
-- 
2.39.2