[PATCH v4 1/2] dt-bindings: trivial-devices: Add Murata D1U74T PSU
From: Abdurrahman Hussain
Date: Thu May 14 2026 - 23:04:01 EST
The Murata D1U74T-W series are hot-pluggable 1U AC/DC front-end
power supplies in the Intel CRPS-185 / OCP M-CRPS form factor.
Each variant delivers a 12 V main output plus a 12 V standby output
from a wide AC input (90-264 Vac) or HVDC supply, and includes an
internal variable-speed cooling fan and on-board voltage, current,
power, fan-speed, and temperature telemetry.
The host-side digital interface is a PMBus 1.2 port on I2C. The
PSU's other electrical signals (status, alert, current-share) live
on the CRPS edge connector and are consumed by the chassis
controller rather than the host SoC, so there are no host-described
supplies, GPIOs, clocks, or interrupts. Add the compatible to
trivial-devices.yaml rather than carrying a standalone binding file.
Signed-off-by: Abdurrahman Hussain <abdurrahman@xxxxxxxxxx>
---
Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index 23fd4513933a..19c8c7220858 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -352,6 +352,8 @@ properties:
- mps,mp9941
# Monolithic Power Systems Inc. digital step-down converter mp9945
- mps,mp9945
+ # Murata D1U74T-W power supply unit
+ - murata,d1u74t
# Temperature sensor with integrated fan control
- national,lm63
# Temperature sensor with integrated fan control
--
2.53.0