1ROCKCHIP with MAX98357A/RT5514/DA7219 codecs on GRU boards 2 3Required properties: 4- compatible: "rockchip,rk3399-gru-sound" 5- rockchip,cpu: The phandle of the Rockchip I2S controller that's 6 connected to the codecs 7- rockchip,codec: The phandle of the audio codecs 8 9Optional properties: 10- dmic-wakeup-delay-ms : specify delay time (ms) for DMIC ready. 11 If this option is specified, which means it's required dmic need 12 delay for DMIC to ready so that rt5514 can avoid recording before 13 DMIC send valid data 14 15Example: 16 17sound { 18 compatible = "rockchip,rk3399-gru-sound"; 19 rockchip,cpu = <&i2s0>; 20 rockchip,codec = <&max98357a &rt5514 &da7219>; 21 dmic-wakeup-delay-ms = <20>; 22}; 23