dt-bindings: trivial-devices: Add Murata D1U74T PSU

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@nexthop.ai>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260514-d1u74t-v4-1-1f1ee7b002ec@nexthop.ai
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index d7940c488ab638d87576dec96f511bf57a17eed7..1e870bb1bb6ec202e6e23e9c6944c411671a16c0 100644 (file)
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -358,6 +358,8 @@ 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