diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
index b4e5d49f9193..10ad69c02da8 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -91,18 +91,6 @@
 		};
 	};
 
-	uart_clk: dummy25m {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <25000000>;
-	};
-
-	bus_clk: dummy280m {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <280000000>;
-	};
-
 	pwrap_clk: dummy40m {
 		compatible = "fixed-clock";
 		clock-frequency = <40000000>;
@@ -234,7 +222,8 @@
 			     "mediatek,mt6577-uart";
 		reg = <0 0x11002000 0 0x400>;
 		interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&uart_clk>, <&bus_clk>;
+		clocks = <&topckgen CLK_TOP_UART_SEL>,
+			 <&pericfg CLK_PERI_UART1_PD>;
 		clock-names = "baud", "bus";
 		status = "disabled";
 	};