From: Riccardo Mereu <r.mereu@arduino.cc>
Date: Thu, 20 Nov 2025 15:58:21 +0000 (+0100)
Subject: dt-bindings: trivial-devices: add arduino spi mcu interface
X-Git-Tag: v6.19-rc1~150^2~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7bde7c10902a0f6f903d3bbe67461f2b402a9ca;p=thirdparty%2Fkernel%2Flinux.git

dt-bindings: trivial-devices: add arduino spi mcu interface

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>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://patch.msgid.link/20251120155825.121483-3-r.mereu.kernel@arduino.cc
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index 58ff948d93c96..9bff5f0201082 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -53,6 +53,8 @@ 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