diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
index 2f48cc3d3ddb..1dd54e8a3a90 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
@@ -9,7 +9,7 @@
 
 / {
 	model = "MediaTek MT7986a RFB";
-	compatible = "mediatek,mt7986a-rfb";
+	compatible = "mediatek,mt7986a-rfb", "mediatek,mt7986a";
 
 	aliases {
 		serial0 = &uart0;
diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
index a22e10e89ab9..90dbb3c6d348 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -10,6 +10,7 @@
 #include <dt-bindings/reset/mt7986-resets.h>
 
 / {
+	compatible = "mediatek,mt7986a";
 	interrupt-parent = <&gic>;
 	#address-cells = <2>;
 	#size-cells = <2>;
diff --git a/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts b/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
index 79c5c78f7a14..7cfcbb95bc52 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
@@ -9,7 +9,7 @@
 
 / {
 	model = "MediaTek MT7986b RFB";
-	compatible = "mediatek,mt7986b-rfb";
+	compatible = "mediatek,mt7986b-rfb", "mediatek,mt7986b";
 
 	aliases {
 		serial0 = &uart0;
diff --git a/arch/arm64/boot/dts/mediatek/mt7986b.dtsi b/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
index 23923b9f8944..db5189664c29 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
@@ -5,6 +5,9 @@
  */
 
 #include "mt7986a.dtsi"
+/ {
+	compatible = "mediatek,mt7986b";
+};
 
 &pio {
 	compatible = "mediatek,mt7986b-pinctrl";