diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981-clkitg.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981-clkitg.dtsi
index 354c320..96cee87 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981-clkitg.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981-clkitg.dtsi
@@ -103,8 +103,8 @@
 			<&infracfg_ao CK_INFRA_MSDC_HCK_CK>,
 			<&infracfg_ao CK_INFRA_MSDC_133M_CK>,
 			<&infracfg_ao CK_INFRA_MSDC_66M_CK>,
-			<&infracfg_ao CK_INFRA_ADC_26M_CK>,
-			<&infracfg_ao CK_INFRA_ADC_FRC_CK>,
+			<&clk40m>,
+			<&clk40m>,
 			<&infracfg_ao CK_INFRA_FBIST2FPC_CK>,
 			<&infracfg_ao CK_INFRA_I2C_MCK_CK>,
 			<&infracfg_ao CK_INFRA_I2C_PCK_CK>,
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981.dtsi
index 832469e..b1e44ea 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981.dtsi
@@ -44,8 +44,9 @@
 		compatible = "mediatek,mt7981-auxadc",
 			     "mediatek,mt7622-auxadc";
 		reg = <0 0x1100d000 0 0x1000>;
-		clocks = <&system_clk>;
-		clock-names = "main";
+		clocks = <&infracfg_ao CK_INFRA_ADC_26M_CK>,
+			 <&infracfg_ao CK_INFRA_ADC_FRC_CK>;
+		clock-names = "main", "32k";
 		#io-channel-cells = <1>;
 	};