u-boot/arch/arm/dts/stm32mp25-pinctrl.dtsi

// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)
/*
 * Copyright (C) STMicroelectronics 2023 - All Rights Reserved
 * Author: Alexandre Torgue <alexandre.torgue@foss.st.com> for STMicroelectronics.
 */
#include <dt-bindings/pinctrl/stm32-pinfunc.h>

&pinctrl {
	usart2_pins_a: usart2-0 {
		pins1 {
			pinmux = <STM32_PINMUX('A', 4, AF6)>; /* USART2_TX */
			bias-disable;
			drive-push-pull;
			slew-rate = <0>;
		};
		pins2 {
			pinmux = <STM32_PINMUX('A', 8, AF8)>; /* USART2_RX */
			bias-disable;
		};
	};

	usart2_idle_pins_a: usart2-idle-0 {
		pins1 {
			pinmux = <STM32_PINMUX('A', 4, ANALOG)>; /* USART2_TX */
		};
		pins2 {
			pinmux = <STM32_PINMUX('A', 8, AF8)>; /* USART2_RX */
			bias-disable;
		};
	};

	usart2_sleep_pins_a: usart2-sleep-0 {
		pins {
			pinmux = <STM32_PINMUX('A', 4, ANALOG)>, /* USART2_TX */
				 <STM32_PINMUX('A', 8, ANALOG)>; /* USART2_RX */
		};
	};
};