diff --git a/Documentation/devicetree/bindings/sound/mt6358.txt b/Documentation/devicetree/bindings/sound/mt6358.txt
index 59a73ffdf1d34d3fa67c9551896884be3c02a468..fbe9e55c68f59a05715a44821faf7f3145a22231 100644
--- a/Documentation/devicetree/bindings/sound/mt6358.txt
+++ b/Documentation/devicetree/bindings/sound/mt6358.txt
@@ -7,7 +7,9 @@ Must be a child node of PMIC wrapper.
 
 Required properties:
 
-- compatible : "mediatek,mt6358-sound".
+- compatible - "string" - One of:
+    "mediatek,mt6358-sound"
+    "mediatek,mt6366-sound"
 - Avdd-supply : power source of AVDD
 
 Optional properties: