diff --git a/Documentation/devicetree/bindings/iio/adc/mediatek,mt2701-auxadc.yaml b/Documentation/devicetree/bindings/iio/adc/mediatek,mt2701-auxadc.yaml
index 14363389f30a..d9e825e5054f 100644
--- a/Documentation/devicetree/bindings/iio/adc/mediatek,mt2701-auxadc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/mediatek,mt2701-auxadc.yaml
@@ -42,6 +42,7 @@ properties:
               - mediatek,mt8183-auxadc
               - mediatek,mt8186-auxadc
               - mediatek,mt8188-auxadc
+              - mediatek,mt8189-auxadc
               - mediatek,mt8195-auxadc
               - mediatek,mt8516-auxadc
           - const: mediatek,mt8173-auxadc