diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index 7eb858732d6d..7cf535dc05f5 100644
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -1648,6 +1648,23 @@ pins2 {
 		};
 	};
 
+	uart4_idle_pins_a: uart4-idle-0 {
+		   pins1 {
+			 pinmux = <STM32_PINMUX('G', 11, ANALOG)>; /* UART4_TX */
+		   };
+		   pins2 {
+			 pinmux = <STM32_PINMUX('B', 2, AF8)>; /* UART4_RX */
+			 bias-disable;
+		   };
+	};
+
+	uart4_sleep_pins_a: uart4-sleep-0 {
+		   pins {
+			pinmux = <STM32_PINMUX('G', 11, ANALOG)>, /* UART4_TX */
+				 <STM32_PINMUX('B', 2, ANALOG)>; /* UART4_RX */
+		    };
+	};
+
 	uart4_pins_b: uart4-1 {
 		pins1 {
 			pinmux = <STM32_PINMUX('D', 1, AF8)>; /* UART4_TX */