linux-kernel - [PATCH v3 0/4] hwmon: Add support for INA780

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Message-ID: <20250829030512.1179998-1-chris.packham@alliedtelesis.co.nz>
Date: Fri, 29 Aug 2025 15:05:08 +1200
From: Chris Packham <chris.packham@...iedtelesis.co.nz>
To: jdelvare@...e.com,
	linux@...ck-us.net,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	corbet@....net,
	wenliang202407@....com,
	jre@...gutronix.de
Cc: linux-hwmon@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org,
	Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH v3 0/4] hwmon: Add support for INA780

This series adds support for the INA780 to the existing ina238.c driver.

v2: https://lore.kernel.org/linux-hwmon/20250808030510.552724-1-chris.packham@alliedtelesis.co.nz/
v1: https://lore.kernel.org/linux-hwmon/20250806005127.542298-1-chris.packham@alliedtelesis.co.nz/

One important bit of feedback I've not addressed is this

> Follow-up: I ordered evaluation boards for INA228, INA237, INA238, and INA780A.
> I'll want to see support added for current limits on all chips, using a similar
> approach as the one in the ina2xx driver. After all, the shunt voltage limits
> are really current limits in disguise. With that and appropriate chip specific
> parameters the differences between the chips should become relatively minor.
>
> This should also simplify adding support for INA700 which seems similar to INA780A.

I wasn't sure if that meant you were going to look at adding current limits to
the existing chips and I should wait or if you wanted me to try based on the
code. Given our timezone differences I figured I'd send the series anyway.
Patch 2 is a bugfix that you might want to pick up sooner.

Chris Packham (4):
  dt-bindings: hwmon: ti,ina2xx: Add INA780 device
  hwmon: (ina238) Correctly clamp temperature
  hwmon: (ina238) Add ina238_config fields
  hwmon: (ina238) Add support for INA780

 .../devicetree/bindings/hwmon/ti,ina2xx.yaml  |   1 +
 Documentation/hwmon/ina238.rst                |  20 ++
 drivers/hwmon/ina238.c                        | 273 ++++++++++++++----
 3 files changed, 238 insertions(+), 56 deletions(-)

-- 
2.51.0