diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
index eb41e55..2c8a752 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
@@ -551,20 +551,7 @@ &adc0 {
 
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_adc0_default &pinctrl_adc1_default
-		&pinctrl_adc2_default &pinctrl_adc3_default
-		&pinctrl_adc4_default &pinctrl_adc5_default
-		&pinctrl_adc6_default &pinctrl_adc7_default>;
-};
-
-&adc1 {
-	ref_voltage = <2500>;
-	status = "okay";
-
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_adc8_default &pinctrl_adc9_default
-		&pinctrl_adc10_default &pinctrl_adc11_default
-		&pinctrl_adc12_default &pinctrl_adc13_default
-		&pinctrl_adc14_default &pinctrl_adc15_default>;
+		&pinctrl_adc2_default>;
 };
 
 &vhub {