typec口支持DP吗？

支持……

1、arch/arm64/configs/rockchip_linux_defconfig  加上：CONFIG_ROCKCHIP_CDN_DP=y
2、arch/arm64/boot/dts/rockchip/rk3399pro-toybrick-prod.dtsi  修改 &cdn_dp {
       status = "okay";
        extcon = <&fusb0>;
        phys = <&tcphy0_dp>;
};
试下行不行