linux-kernel - [PATCH v3 0/2] hwmon: (tps23861) add class restrictions and semi-auto mode support

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Message-Id: <20250904-hwmon-tps23861-add-class-restrictions-v3-0-b4e33e6d066c@gmail.com>
Date: Thu, 04 Sep 2025 10:33:43 -0700
From: Gregory Fuchedgi via B4 Relay <devnull+gfuchedgi.gmail.com@...nel.org>
To: Robert Marko <robert.marko@...tura.hr>, 
 Luka Perkov <luka.perkov@...tura.hr>, Jean Delvare <jdelvare@...e.com>, 
 Guenter Roeck <linux@...ck-us.net>, Jonathan Corbet <corbet@....net>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-hwmon@...r.kernel.org, linux-doc@...r.kernel.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 Gregory Fuchedgi <gfuchedgi@...il.com>
Subject: [PATCH v3 0/2] hwmon: (tps23861) add class restrictions and
 semi-auto mode support

This patch series introduces per-port device tree configuration with poe
class restrictions. Also adds optional reset/shutdown gpios.

Tested with hw poe tester:
 - Auto mode tested with no per-port DT settings as well as explicit port
   DT ti,class=4. Tested that no IRQ is required in this case.
 - Semi-Auto mode with class restricted to 0, 1, 2 or 3. IRQ required.
 - Tested current cut-offs in Semi-Auto mode.
 - On/off by default setting tested for both Auto and Semi-Auto modes.
 - Tested fully disabling the ports in DT.
 - Tested with both reset and ti,ports-shutdown gpios defined, as well as
   with reset only, as well as with neither reset nor shutdown.

Signed-off-by: Gregory Fuchedgi <gfuchedgi@...il.com>
---
Changes in v3:
 - cleaned up dt bindings in response to v2 review
 - Link to v2: https://lore.kernel.org/r/20250811-hwmon-tps23861-add-class-restrictions-v2-0-ebd122ec5e3b@gmail.com

Changes in v2:
 - code cleanup
 - split bindings into separate patch
 - use patternProperties
 - use labels instead of DT node names
 - add few comments for clarity

---
Gregory Fuchedgi (2):
      dt-bindings: hwmon: update TI TPS23861 with per-port schema
      hwmon: (tps23861) add class restrictions and semi-auto mode support

 .../devicetree/bindings/hwmon/ti,tps23861.yaml     |  93 +++++++-
 Documentation/hwmon/tps23861.rst                   |   6 +-
 drivers/hwmon/tps23861.c                           | 249 ++++++++++++++++++++-
 3 files changed, 341 insertions(+), 7 deletions(-)
---
base-commit: 3db46a82d467bd23d9ebc473d872a865785299d8
change-id: 20250808-hwmon-tps23861-add-class-restrictions-83ce3c02d885

Best regards,
-- 
Gregory Fuchedgi <gfuchedgi@...il.com>