diff --git a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
index 51118a4149d8..1049877e6cda 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
@@ -117,6 +117,7 @@ &i2c1 {
 	buck: da9211@68 {
 		compatible = "dlg,da9211";
 		reg = <0x68>;
+		interrupts-extended = <&pio 15 IRQ_TYPE_LEVEL_LOW>;
 
 		regulators {
 			da9211_vcpu_reg: BUCKA {
@@ -179,6 +180,13 @@ pins1 {
 		};
 	};
 
+	i2c1_pins_a: i2c1-pins {
+		pins-da9211 {
+			pinmux = <MT8173_PIN_15_EINT15__FUNC_GPIO15>;
+			bias-pull-up;
+		};
+	};
+
 	mmc0_pins_default: mmc0-default-pins {
 		pins-cmd-dat {
 			pinmux = <MT8173_PIN_57_MSDC0_DAT0__FUNC_MSDC0_DAT0>,