linux-kernel - [PATCH v2 0/5] hwmon: pmbus: Add support for MPM82504 and MPM3695 family

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Message-ID: <20250509065237.2392692-1-paweldembicki@gmail.com>
Date: Fri,  9 May 2025 08:51:04 +0200
From: Pawel Dembicki <paweldembicki@...il.com>
To: linux-hwmon@...r.kernel.org
Cc: Pawel Dembicki <paweldembicki@...il.com>,
	Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jonathan Corbet <corbet@....net>,
	Noah Wang <noahwang.wang@...look.com>,
	Naresh Solanki <naresh.solanki@...ements.com>,
	Fabio Estevam <festevam@...il.com>,
	Michal Simek <michal.simek@....com>,
	Grant Peltier <grantpeltier93@...il.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	Shen Lichuan <shenlichuan@...o.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Charles Hsu <ythsu0511@...il.com>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org
Subject: [PATCH v2 0/5] hwmon: pmbus: Add support for MPM82504 and MPM3695 family

This series extends the hwmon PMBus driver for the MPS MPQ8785 to support
two additional Monolithic Power Systems devices: the MPM82504 and
MPM3695 family.

The driver is restructured to support multiple devices using device tree
matching. It also introduces an optional "mps,vout-fb-divider-ratio-permille"
property to configure the VOUT_SCALE_LOOP PMBus register, which adjusts
reported output voltages depending on the external feedback divider.

Device tree bindings are updated accordingly.

Changes have been tested on hardware with device-tree based matching
using the MPM82504 and MPM3695-10.

Signed-off-by: Pawel Dembicki <paweldembicki@...il.com>

Pawel Dembicki (5):
  hwmon: pmbus: mpq8785: Prepare driver for multiple device support
  hwmon: pmbus: mpq8785: Add support for MPM82504
  hwmon: pmbus: mpq8785: Add support for MPM3695 family
  hwmon: pmbus: mpq8785: Implement VOUT feedback resistor divider ratio
    configuration
  dt-bindings: hwmon: Add bindings for mpq8785 driver

 .../bindings/hwmon/pmbus/mps,mpq8785.yaml     | 88 ++++++++++++++++++
 .../devicetree/bindings/trivial-devices.yaml  |  2 -
 Documentation/hwmon/mpq8785.rst               | 27 ++++--
 drivers/hwmon/pmbus/mpq8785.c                 | 93 +++++++++++++++++--
 4 files changed, 194 insertions(+), 16 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq8785.yaml

-- 
2.43.0