[PATCH 0/2] hwmon: Add Murata D1U74T-W PSU driver

From: Abdurrahman Hussain

Date: Mon May 11 2026 - 21:45:52 EST


This series adds a PMBus driver for the Murata D1U74T-W AC/DC power
supply unit, used in some Open Compute Project platforms.

The PSU is PMBus-compliant and uses the linear data format. The driver
exposes:

- input/output voltage, current and power telemetry,
- three temperature sensors,
- dual fan tachometer monitoring,

through the standard hwmon/pmbus sysfs interface. Probe verifies the
PMBUS_MFR_ID and PMBUS_MFR_MODEL fields before binding so the driver
only attaches to actual D1U74T-W hardware.

Patch 1 adds the devicetree binding.
Patch 2 adds the driver, hwmon documentation, Kconfig/Makefile entries
and MAINTAINERS section.

Signed-off-by: Abdurrahman Hussain <abdurrahman@xxxxxxxxxx>
---
Abdurrahman Hussain (2):
dt-bindings: hwmon: pmbus: Add Murata D1U74T PSU
hwmon: (pmbus/d1u74t) Add Murata D1U74T PSU driver

.../bindings/hwmon/pmbus/murata,d1u74t.yaml | 41 +++++++++
Documentation/hwmon/d1u74t.rst | 97 ++++++++++++++++++++++
Documentation/hwmon/index.rst | 1 +
MAINTAINERS | 8 ++
drivers/hwmon/pmbus/Kconfig | 9 ++
drivers/hwmon/pmbus/Makefile | 1 +
drivers/hwmon/pmbus/d1u74t.c | 85 +++++++++++++++++++
7 files changed, 242 insertions(+)
---
base-commit: 5d6919055dec134de3c40167a490f33c74c12581
change-id: 20260511-d1u74t-c0cba8f1c344

Best regards,
--
Abdurrahman Hussain <abdurrahman@xxxxxxxxxx>