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https://github.com/Lichee-Pi/linux/blob/zero-4.13.y/arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts

        leds {
                compatible = "gpio-leds";

                blue_led {
                        label = "licheepi:blue:usr";
                        gpios = <&pio 6 1 GPIO_ACTIVE_LOW>; /* PG1 */
                };

                green_led {
                        label = "licheepi:green:usr";
                        gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */
                        default-state = "on";
                };

                red_led {
                        label = "licheepi:red:usr";
                        gpios = <&pio 6 2 GPIO_ACTIVE_LOW>; /* PG2 */
                };
        };