Mikroe-PROTO audio board Required properties: - compatible: "mikroe,mikroe-proto" - dai-format: Must be "i2s". - i2s-controller: The phandle of the I2S controller. - audio-codec: The phandle of the WM8731 audio codec. Optional properties: - model: The user-visible name of this sound complex. - bitclock-master: Indicates dai-link bit clock master; for details see simple-card.txt (1). - frame-master: Indicates dai-link frame master; for details see simple-card.txt (1). (1) : There must be the same master for both bit and frame clocks. Example: sound { compatible = "mikroe,mikroe-proto"; model = "wm8731 @ sama5d2_xplained"; i2s-controller = <&i2s0>; audio-codec = <&wm8731>; dai-format = "i2s"; }; };