diff --git a/Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml b/Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml
index cc8dc264fc72..335717e15970 100644
--- a/Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml
+++ b/Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml
@@ -36,6 +36,7 @@ properties:
         - const: amlogic,gx-vdec
       - enum:
         - amlogic,g12a-vdec # G12A (S905X2, S905D2)
+        - amlogic,sm1-vdec # SM1 (S905X3, S905D3)
 
   interrupts:
     minItems: 2
@@ -103,6 +104,7 @@ allOf:
           contains:
             enum:
               - amlogic,g12a-vdec
+              - amlogic,sm1-vdec
 
     then:
       properties: