minico2-firmware/boards/xtensa/minico2/minico2-pinctrl.dtsi

#include <zephyr/dt-bindings/pinctrl/esp-pinctrl-common.h>
#include <dt-bindings/pinctrl/esp32-pinctrl.h>
#include <zephyr/dt-bindings/pinctrl/esp32-gpio-sigmap.h>

&pinctrl {
	uart0_default: uart0_default {
		group1 {
			pinmux = <UART0_TX_GPIO1>;
			output-high;
		};
		group2 {
			pinmux = <UART0_RX_GPIO3>;
			bias-pull-up;
		};
	};

	i2c0_default: i2c0_default {
		group1 {
			pinmux = <I2C0_SDA_GPIO32>,
				 <I2C0_SDA_GPIO33>;
			bias-pull-up;
			drive-open-drain;
			output-high;
		};
	};

	spi2_default: spi2_default {
		group1 {
			pinmux = <SPIM2_SCLK_GPIO16>,
				 <SPIM2_CSEL_GPIO17>;
		};
		group2 {
			pinmux = <SPIM2_MOSI_GPIO4>;
		};
	};
};