diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
index 6dd26ad31491..eb3755bdfdf7 100644
--- a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
@@ -25,6 +25,7 @@ properties:
           - mediatek,mt8135-mmc
           - mediatek,mt8173-mmc
           - mediatek,mt8183-mmc
+          - mediatek,mt8189-mmc
           - mediatek,mt8196-mmc
           - mediatek,mt8516-mmc
       - items:
@@ -192,6 +193,7 @@ allOf:
             - mediatek,mt8183-mmc
             - mediatek,mt8186-mmc
             - mediatek,mt8188-mmc
+            - mediatek,mt8189-mmc
             - mediatek,mt8195-mmc
             - mediatek,mt8196-mmc
             - mediatek,mt8516-mmc
@@ -240,6 +242,7 @@ allOf:
               - mediatek,mt7986-mmc
               - mediatek,mt7988-mmc
               - mediatek,mt8183-mmc
+              - mediatek,mt8189-mmc
               - mediatek,mt8196-mmc
     then:
       properties: