diff --git a/Documentation/devicetree/bindings/sound/nxp,tfa989x.yaml b/Documentation/devicetree/bindings/sound/nxp,tfa989x.yaml
index 68e5ad2a2acc..7667471be1e4 100644
--- a/Documentation/devicetree/bindings/sound/nxp,tfa989x.yaml
+++ b/Documentation/devicetree/bindings/sound/nxp,tfa989x.yaml
@@ -24,6 +24,8 @@ properties:
   '#sound-dai-cells':
     const: 0
 
+  sound-name-prefix: true
+
   vddd-supply:
     description: regulator phandle for the VDDD power supply.
 
diff --git a/Documentation/devicetree/bindings/sound/simple-audio-mux.yaml b/Documentation/devicetree/bindings/sound/simple-audio-mux.yaml
index c597d9dfb001..b5fc35ee9b65 100644
--- a/Documentation/devicetree/bindings/sound/simple-audio-mux.yaml
+++ b/Documentation/devicetree/bindings/sound/simple-audio-mux.yaml
@@ -24,6 +24,8 @@ properties:
     description: |
       GPIOs used to select the input line.
 
+  sound-name-prefix: true
+
 required:
   - compatible
   - mux-gpios