diff --git a/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt b/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt
index a1e7b8142715e1d7b8b906127f95a89ac89004b4..5e2c7e84c43e1e7c00e22f96d4909f146bb1c583 100644
--- a/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt
+++ b/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt
@@ -7,6 +7,7 @@ Required Properties:
 	  - "renesas,r8a7744-usb-dmac" (RZ/G1N)
 	  - "renesas,r8a7745-usb-dmac" (RZ/G1E)
 	  - "renesas,r8a77470-usb-dmac" (RZ/G1C)
+	  - "renesas,r8a774a1-usb-dmac" (RZ/G2M)
 	  - "renesas,r8a7790-usb-dmac" (R-Car H2)
 	  - "renesas,r8a7791-usb-dmac" (R-Car M2-W)
 	  - "renesas,r8a7793-usb-dmac" (R-Car M2-N)