Re: [PATCH 2/3] usb: typec: Add Hynetek HUSB320 Type-C controller driver

[Meng Li]

On Mon, Jul 20, 2026 at 04:17:12PM +0800, Hongyang Zhao wrote:
> The HUSB320 is an autonomous Configuration Channel controller which
> supports fixed source or sink operation and dual-role ports without USB
> Power Delivery.
> 
> Add a Type-C class driver for attach and detach detection, orientation
> and Rp current reporting, platform VBUS control, USB role switching,
> Try.SRC and Try.SNK, and audio and debug accessories.
> 
> Signed-off-by: Hongyang Zhao <hongyang.zhao@xxxxxxx>

I tested this driver on a Thundercomm I615 DK based on Qualcomm
QCS615, using the following device tree configuration:

&i2c3 {
	clock-frequency = <400000>;

	status = "okay";

	typec@31 {
		compatible = "hynetek,husb320";
		reg = <0x31>;

		interrupts-extended = <&tlmm 55 IRQ_TYPE_LEVEL_LOW>;
		pinctrl-0 = <&husb320_interrupt>;
		pinctrl-names = "default";

		connector {
			compatible = "usb-c-connector";
			label = "USB-C";
			vbus-supply = <&vreg_usb0_vbus>;
			data-role = "dual";
			power-role = "dual";
			typec-power-opmode = "default";
			pd-disable;

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

				port@0 {
					reg = <0>;

					husb320_hs: endpoint {
						remote-endpoint = <&usb_1_hs>;
					};
				};

				port@1 {
					reg = <1>;

					husb320_ss: endpoint {
						remote-endpoint = <&usb_qmpphy_out>;
					};
				};
			};
		};
	};
};

The following tests passed:

- USB device/ADB in both connector orientations at 5 Gbit/s
- USB host with a USB 3.0 flash drive in both orientations at 5 Gbit/s
- 1 GiB read-only direct reads at 115 MB/s and 111 MB/s
- VBUS, data role and orientation switching
- No interrupt storm, USB enumeration error or I/O error was observed

Tested-by: Meng Li <meng.li_g@xxxxxxxxxxxxxxx>