diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt7986-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt7986-pinctrl.yaml
index 31c36689438c..0f615ada290a 100644
--- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt7986-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt7986-pinctrl.yaml
@@ -72,7 +72,7 @@ patternProperties:
     additionalProperties: false
 
     patternProperties:
-      '.*mux.*':
+      '^.*mux.*$':
         type: object
         additionalProperties: false
         description: |
@@ -256,7 +256,7 @@ patternProperties:
                   items:
                     enum: [wf_2g, wf_5g, wf_dbdc]
                   maxItems: 3
-      '.*conf.*':
+      '^.*conf.*$':
         type: object
         additionalProperties: false
         description: