1*c66ec88fSEmmanuel VadotROCKCHIP with MAX98357A/RT5514/DA7219 codecs on GRU boards 2*c66ec88fSEmmanuel Vadot 3*c66ec88fSEmmanuel VadotRequired properties: 4*c66ec88fSEmmanuel Vadot- compatible: "rockchip,rk3399-gru-sound" 5*c66ec88fSEmmanuel Vadot- rockchip,cpu: The phandle of the Rockchip I2S controller that's 6*c66ec88fSEmmanuel Vadot connected to the codecs 7*c66ec88fSEmmanuel Vadot- rockchip,codec: The phandle of the audio codecs 8*c66ec88fSEmmanuel Vadot 9*c66ec88fSEmmanuel VadotOptional properties: 10*c66ec88fSEmmanuel Vadot- dmic-wakeup-delay-ms : specify delay time (ms) for DMIC ready. 11*c66ec88fSEmmanuel Vadot If this option is specified, which means it's required dmic need 12*c66ec88fSEmmanuel Vadot delay for DMIC to ready so that rt5514 can avoid recording before 13*c66ec88fSEmmanuel Vadot DMIC send valid data 14*c66ec88fSEmmanuel Vadot 15*c66ec88fSEmmanuel VadotExample: 16*c66ec88fSEmmanuel Vadot 17*c66ec88fSEmmanuel Vadotsound { 18*c66ec88fSEmmanuel Vadot compatible = "rockchip,rk3399-gru-sound"; 19*c66ec88fSEmmanuel Vadot rockchip,cpu = <&i2s0>; 20*c66ec88fSEmmanuel Vadot rockchip,codec = <&max98357a &rt5514 &da7219>; 21*c66ec88fSEmmanuel Vadot dmic-wakeup-delay-ms = <20>; 22*c66ec88fSEmmanuel Vadot}; 23