diff --git a/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml b/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml
index c43fc4c56f77..9f7a7296b57f 100644
--- a/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml
+++ b/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.yaml
@@ -57,6 +57,9 @@ properties:
     oneOf:
       - const: nvidia,tegra186-hsp
       - const: nvidia,tegra194-hsp
+      - items:
+          - const: nvidia,tegra234-hsp
+          - const: nvidia,tegra194-hsp
 
   reg:
     maxItems: 1