diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 8f64ac2c7568..560dad02ef62 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -274,6 +274,12 @@
 			AM62AX_IOPAD(0x084, PIN_INPUT, 2) /* (L18) GPMC0_ADVn_ALE.MCASP1_AXR2 */
 		>;
 	};
+
+	main_gpio1_ioexp_intr_pins_default: main-gpio1-ioexp-intr-default-pins {
+		pinctrl-single,pins = <
+			AM62AX_IOPAD(0x01d4, PIN_INPUT, 7) /* (C15) UART0_RTSn.GPIO1_23 */
+		>;
+	};
 };
 
 &mcu_pmx0 {
@@ -407,6 +413,12 @@
 		reg = <0x22>;
 		gpio-controller;
 		#gpio-cells = <2>;
+		interrupt-parent = <&main_gpio1>;
+		interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&main_gpio1_ioexp_intr_pins_default>;
 
 		gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST",
 				   "BT_EN_SOC", "MMC1_SD_EN",