samples: drivers/adc: Support adc example for NXP frdm_mcxa153

/*

 * Copyright 2025 NXP

 *

 * SPDX-License-Identifier: Apache-2.0

 */

#include <zephyr/dt-bindings/adc/adc.h>

#include <zephyr/dt-bindings/adc/mcux-lpadc.h>

/ {

	zephyr,user {

		/* adjust channel number according to pinmux in board.dts */

		io-channels = <&lpadc0 0>;

	};

};

&lpadc0 {

	#address-cells = <1>;

	#size-cells = <0>;

	/*

	 * To use this sample:

	 * LPADC0 CH0A is set up in single ended mode

	 * - Connect LPADC0 CH0A signal to voltage between 0~3.3V (J4 pin 8)

	 */

	channel@0 {

		reg = <0>;

		zephyr,gain = "ADC_GAIN_1";

		zephyr,reference = "ADC_REF_EXTERNAL0";

		zephyr,vref-mv = <3300>;

		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

		zephyr,resolution = <16>;

		zephyr,input-positive = <MCUX_LPADC_CH0A>;

	};

};