[PATCH v3 1/8] dt-bindings: mfd: khadas: Add new compatible for Khadas VIM4 MCU

Ronald Claveau
2026-04-17T16:37:15Z

The Khadas VIM4 MCU register is slightly different
from previous boards' MCU.
This board also features a switchable power source for its fan.

Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr>
---
Documentation/devicetree/bindings/mfd/khadas,mcu.yaml | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
index 084960fd5a1fd..a80718f7595ce 100644
--- a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
+++ b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
@@ -18,6 +18,7 @@ properties:
compatible:
enum:
- khadas,mcu # MCU revision is discoverable
+ - khadas,vim4-mcu # Different MCU variant, not discoverable

"#cooling-cells": # Only needed for boards having FAN control feature
const: 2
@@ -25,6 +26,10 @@ properties:
reg:
maxItems: 1

+ fan-supply:
+ description: Phandle to the regulator that powers the fan.
+ $ref: /schemas/types.yaml#/definitions/phandle
+
required:
- compatible
- reg

--
2.49.0