diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi
index 4b8031782555..e242d7211059 100644
--- a/arch/arm/boot/dts/stm32mp151.dtsi
+++ b/arch/arm/boot/dts/stm32mp151.dtsi
@@ -452,32 +452,36 @@ spdifrx: audio-controller@4000d000 {
 		usart2: serial@4000e000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x4000e000 0x400>;
-			interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 27 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc USART2_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
 		usart3: serial@4000f000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x4000f000 0x400>;
-			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 28 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc USART3_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
 		uart4: serial@40010000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x40010000 0x400>;
-			interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 30 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc UART4_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
 		uart5: serial@40011000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x40011000 0x400>;
-			interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 31 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc UART5_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
@@ -577,16 +581,18 @@ dac2: dac@2 {
 		uart7: serial@40018000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x40018000 0x400>;
-			interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 32 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc UART7_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
 		uart8: serial@40019000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x40019000 0x400>;
-			interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 33 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc UART8_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
@@ -665,8 +671,9 @@ counter {
 		usart6: serial@44003000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x44003000 0x400>;
-			interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 29 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc USART6_K>;
+			wakeup-source;
 			status = "disabled";
 		};
 
@@ -1505,8 +1512,9 @@ usbphyc_port1: usb-phy@1 {
 		usart1: serial@5c000000 {
 			compatible = "st,stm32h7-uart";
 			reg = <0x5c000000 0x400>;
-			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&exti 26 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&rcc USART1_K>;
+			wakeup-source;
 			status = "disabled";
 		};