USB Type C Port controller (TCPCI) with STM32H7S78-DK missing binding

[Sambsc19]

The USB1 (HS) does not have VBUS detect. I am building USB C Source zephyr sample for PD and USB detect.

The STM32H7S78-DK has the tcpp03-m20 USB Type C Port Controller (TCPCI) device.

zephyr\drivers\usb_c\tcpc\tcpci.c does not have a COMPAT property so I am unsure which binding to use for &i2c1 tcpc: tcpc@68? Am I missing a driver and/or binding?

My current conf and overlay:

CONFIG_USBC_STACK=y
CONFIG_USBC_CSM_SOURCE_ONLY=y
CONFIG_USBC_THREAD_PRIORITY=10
CONFIG_ADC=n
CONFIG_PWM=n
CONFIG_LOG=y
CONFIG_GPIO=y
CONFIG_USBC_TCPC_DRIVER=y
CONFIG_USBC_VBUS_DRIVER=y

/* Overlay for STM32H7S78-DK with TCPP03-M20 for usb-c-source sample */

#include <dt-bindings/usb-c/pd.h>

&ucpd1 {
	status = "okay";
	psc-ucpdclk = <1>;
	hbitclkdiv = <27>;
	pinctrl-0 = <&ucpd1_cc1_pm0 &ucpd1_cc2_pm1>;
	pinctrl-names = "default";
};

&i2c1 {
	status = "okay";

	/* TCPP03-M20 */
	tcpc: tcpc@68 {
		compatible = "zephyr,tcpc-i2c";
		reg = <0x68>;
		label = "TCPC";
		irq-gpios = <&gpiom 8 GPIO_ACTIVE_LOW>; /* PM8 = FLGn */
		vbus-supply = <&vbus1>;
		status = "okay";

		vbus1: vbus {
			compatible = "zephyr,usb-c-vbus-tcpci";
		};
	};
};

/ {
	aliases {
		usbc-port0 = &port1;
	};

	pwrctrl {
		compatible = "gpio-leds";

		source_en: g1 {
			gpios = <&gpiom 9 GPIO_ACTIVE_HIGH>; /* PM9 = VBUS EN */
			label = "SOURCE_EN";
		};

		// dcdc_en: g2 {
		// 	gpios = <&gpiom 10 GPIO_ACTIVE_HIGH>; /* PM10 = DCDC_EN */
		// 	label = "DCDC_EN";
		// };

		/* If you have GPIOs for VCONN, you can add them like this: */
		// vconn1_en: vconn1_en {
		// 	gpios = <&gpiom X GPIO_ACTIVE_LOW>;
		// 	label = "VCONN1_EN";
		// };
		// vconn2_en: vconn2_en {
		// 	gpios = <&gpiom Y GPIO_ACTIVE_LOW>;
		// 	label = "VCONN2_EN";
		// };
	};

	// vbus1: vbus {
	// 	// compatible = "zephyr,usb-c-vbus-gpio";
	// 	compatible = "zephyr,usb-c-vbus-tcpci";
	// 	// You can add `enable-gpios = <...>;` if needed.
	// };

	ports {
		#address-cells = <1>;
		#size-cells = <0>;

		port1: usbc-port@1 {
			compatible = "usb-c-connector";
			reg = <1>;
			// tcpc = <&ucpd1>;
			tcpc = <&tcpc>;
			vbus = <&vbus1>;
			power-role = "source";
			typec-power-opmode = "3.0A";
			source-pdos = <PDO_FIXED(5000, 100, 0)
			               PDO_FIXED(9000, 100, 0)
			               PDO_FIXED(15000, 100, 0)>;
		};
	};
};