1ROCKCHIP Built-in HDMI and DP audio 2 3Required properties: 4- compatible: "rockchip,rk3399-hdmi-dp" 5- rockchip,cpu: The phandle of the Rockchip I2S controller that's 6 connected to the CODEC 7- rockchip,codec: The phandle of audio codecs, should contain HDMI 8 or DP, or both. 9 10Example: 11 12sound { 13 compatible = "rockchip,rk3399-hdmi-dp"; 14 rockchip,cpu = <&i2s2>; 15 rockchip,codec = <&hdmi>, <&cdn_dp>; 16}; 17 18