Re: [PATCH v2 0/2] iio: adc: add support for the MAX34417 Four-Channel High Dynamic Range Power Accumulator
From: Jonathan Cameron
Date: Thu Sep 24 2026 - 23:13:42 EST
On Thu, 24 Sep 2026 15:14:14 +0200
Neil Armstrong <neil.armstrong@xxxxxxxxxx> wrote:
> The MAX34417 is a specialized current and voltage monitor used to determine
> power consumption of portable systems. The driver support getting the channel
> voltage and accumulated average power over an I2C/SMBUS serial interface.
>
> Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Hi Neil,
As pointed out too fast for a v2. You aren't new upstream so
that shouldn't come as a surprise!
Secondly for devices that are all about monitoring power supplies
etc we always ask for a clear statement of why IIO rather than
hwmon + to CC at least the maintainer and often the hwmon list.
There are various valid reasons for that choice, but it is good
if they are clearly stated for discussion.
Thanks,
Jonathan
> ---
> Changes in v2:
> - switch to shunt-resistor-micro-ohms no more required
> - removed gpio.h from example
> - Fixed max34417->MAX34417 in Kconfig and comments
> - Added missing includes and remove unneeded
> - Fixed typos in comments
> - Switched to fsleep()
> - Better aligned max34417_read_power declararation
> - Handled 0 acc_count
> - Switched to GENMASK_ULL() for 32bits systems
> - Added missing empty lines
> - Moved the input correction into a helper
> - Set default input correction for all channels
> - Switched to dev_err_probe() to return from probe
> - Switched to device_for_each_child_node_scoped()
> - Handled invalid shunt-resistor-micro-ohms value
> - Link to v1: https://patch.msgid.link/20260923-topic-sm8x50-iio-max34417-adc-v1-0-41d4ba1bfc41@xxxxxxxxxx
>
> ---
> Neil Armstrong (2):
> dt-bindings: iio: add: document the MAX34417 Four-Channel High Dynamic Range Power Accumulator
> iio: adc: add driver for the MAX34417 Four-Channel High Dynamic Range Power Accumulator
>
> .../bindings/iio/adc/maxim,max34417.yaml | 100 ++++++
> drivers/iio/adc/Kconfig | 11 +
> drivers/iio/adc/Makefile | 1 +
> drivers/iio/adc/max34417.c | 374 +++++++++++++++++++++
> 4 files changed, 486 insertions(+)
> ---
> base-commit: fd73f4a6659897191fa0d40695fe370925dd3780
> change-id: 20260923-topic-sm8x50-iio-max34417-adc-209e880533fb
>
> Best regards,
> --
> Neil Armstrong <neil.armstrong@xxxxxxxxxx>
>