[PATCH v4 3/4] arm64: dts: rockchip: Add devicetree for the FriendlyElec NanoPi R28S

[Chukun Pan]

Hi,

> +		button-user {
> +			debounce-interval = <50>;
> +			gpios = <&gpio4 RK_PB2 GPIO_ACTIVE_LOW>;
> +			label = "USER";
> +			linux,code = <KEY_RESTART>;

This is a custom button.
linux,code = <BTN_1>;

> +	leds {
> +		led-lan {
> +		led-sys {
> +		led-wan {   

Use led-[0-9] for naming.
Two of them are the same as zero2.

> +&pinctrl {
> +	leds {
> +		led1: led1 {
> +		led2: led2 {
> +		led_sys: led-sys {

Two of them are the same as zero2.