On 03/11/2022 17:06, richard.yu@xxxxxxx wrote:
> From: Richard Yu <richard.yu@xxxxxxx>
>
> Add support for the USB drivers on HPE GXP SoC.
>
> Signed-off-by: Richard Yu <richard.yu@xxxxxxx>
> ---
> arch/arm/boot/dts/hpe-gxp.dtsi | 30 ++++++++++++++++++++++++++++++
> 1 file changed, 30 insertions(+)
>
> diff --git a/arch/arm/boot/dts/hpe-gxp.dtsi b/arch/arm/boot/dts/hpe-gxp.dtsi
> index cf735b3c4f35..60f2d3b15d90 100644
> --- a/arch/arm/boot/dts/hpe-gxp.dtsi
> +++ b/arch/arm/boot/dts/hpe-gxp.dtsi
> @@ -59,6 +59,36 @@
> ranges = <0x0 0xc0000000 0x30000000>;
> dma-ranges;
>
> + vuhc0: vuhc@80400000 {
> + compatible = "hpe,gxp-vuhc", "syscon";
> + reg = <0x80400000 0x80>;
> + };
> +
> + udc_system_controller: system-controller@80400800 {
> + compatible = "hpe,gxp-udcg", "syscon";
> + reg = <0x80400800 0x200>;
> + };
> +
> + gadget0: udc@80401000 {
> + compatible = "hpe,gxp-udc";
> + reg = <0x80401000 0x1000>;
> + interrupts = <13>;
> + interrupt-parent = <&vic1>;
> + vdevnum = <0>;
> + fepnum = <7>;
> + hpe,syscon-phandle = <&udc_system_controller>;
> + };
> +
> + gadget1: udc@80402000 {
> + compatible = "hpe,gxp-udc";
> + reg = <0x80402000 0x1000>;
> + interrupts = <13>;
> + interrupt-parent = <&vic1>;
> + vdevnum = <1>;
> + fepnum = <7>;
> + hpe,syscon-phandle = <&udc_system_controller>;
Based on your bindings explanation, UDC should be rather the device
with multiple children representing actual devices.
Best regards,
Krzysztof
