[PATCH v2 2/2] arm64: dts: rockchip: Fix USB Type-C host mode for Radxa ROCK 5 ITX

[FUKAUMI Naoki]

Please ignore this patch.

By the way, could someone try a bus-powered USB Type-C device with the 
ROCK 5 ITX(+) and let me know the result?

Best regards,

--
FUKAUMI Naoki
Radxa Computer (Shenzhen) Co., Ltd.

On 10/29/25 22:02, FUKAUMI Naoki wrote:
> The Radxa ROCK 5 ITX USB Type-C port supports Dual Role Data and
> should also act as a host. However, currently, when acting as a host,
> only self-powered devices work.
> 
> As a workaround, set the power-role property to "dual" and the
> try-power-role property to "sink". (along with related properties)
> 
> This allows the port to act as a host, supply power to the port, and
> allow bus-powered devices to work.
> 
> Note that there is a separate known issue where USB 3.0 SuperSpeed
> devices do not work when oriented in reverse. This issue should be
> addressed separately. (USB 2.0/1.1 devices work in both orientations)
> 
> Fixes: 31390eb8ffbf2 ("arm64: dts: rockchip: add ROCK 5 ITX board")
> Signed-off-by: FUKAUMI Naoki <naoki at radxa.com>
> ---
> Changes in v2:
> - Refine commit message
> ---
>   arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts | 7 ++++++-
>   1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
> index bc8140883de47..1664f85db4aaa 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
> @@ -484,9 +484,14 @@ usb_con: connector {
>   			compatible = "usb-c-connector";
>   			data-role = "dual";
>   			label = "USB-C";
> -			power-role = "source";
> +			op-sink-microwatt = <50000>;
> +			/* fusb302 supports PD Rev 2.0 Ver 1.2 */
> +			pd-revision = /bits/ 8 <0x2 0x0 0x1 0x2>;
> +			power-role = "dual";
> +			sink-pdos = <PDO_FIXED(5000, 10, PDO_FIXED_USB_COMM)>;
>   			source-pdos =
>   				<PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
> +			try-power-role = "sink";
>   
>   			ports {
>   				#address-cells = <1>;