From: Riccardo Mereu <r.mereu@arduino.cc>

Add unoq mcu interface. It describes an iterface between Qualcomm
QRB2210 microprocessor and STMicroelectronics STM32U585 microcontroller
on Arduino UnoQ single-board computer.
This is a trivial device since it's usage is handled in user space
by the arduino-router service.

Signed-off-by: Riccardo Mereu <r.mereu@arduino.cc>
---
 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 2eff6f274302..d0f7dbf15d6f 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -59,6 +59,8 @@ properties:
           - adi,lt7182s
             # AMS iAQ-Core VOC Sensor
           - ams,iaq-core
+            # Arduino microcontroller interface over SPI on UnoQ board
+          - arduino,unoq-mcu
             # Temperature monitoring of Astera Labs PT5161L PCIe retimer
           - asteralabs,pt5161l
             # i2c h/w elliptic curve crypto module
-- 
2.52.0

On 20/11/2025 16:58, Riccardo Mereu wrote:
> From: Riccardo Mereu <r.mereu@arduino.cc>
> 
> Add unoq mcu interface. It describes an iterface between Qualcomm
> QRB2210 microprocessor and STMicroelectronics STM32U585 microcontroller
> on Arduino UnoQ single-board computer.
> This is a trivial device since it's usage is handled in user space
> by the arduino-router service.

I was rather thinking about triviality in context of managing hardware,
like its hardware resources (power, pins), but it's good enough for me,
thanks for the changes.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>


Best regards,
Krzysztof