diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi
index 0e64c7635127..b7491017460f 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -256,7 +256,7 @@ pfc: pfc@fffc0000 {
 	};
 
 	thermal@ffc48000 {
-		compatible = "renesas,rcar-thermal";
+		compatible = "renesas,thermal-r8a7779", "renesas,rcar-thermal";
 		reg = <0xffc48000 0x38>;
 	};