diff --git a/Documentation/devicetree/bindings/arm/airoha,en7581-chip-scu.yaml b/Documentation/devicetree/bindings/arm/airoha,en7581-chip-scu.yaml
index cc564dc7b414..4a10d024f5fa 100644
--- a/Documentation/devicetree/bindings/arm/airoha,en7581-chip-scu.yaml
+++ b/Documentation/devicetree/bindings/arm/airoha,en7581-chip-scu.yaml
@@ -26,7 +26,8 @@ properties:
     maxItems: 1
 
   '#thermal-sensor-cells':
-    const: 0
+    description: Sensor index, 0 bandgap, 1 GbE, 2 CPU.
+    const: 1
 
 required:
   - compatible