/dts-v1/; /plugin/; / { compatible = "brcm,bcm2708"; fragment@0 { target = <&i2s>; __overlay__ { #sound-dai-cells = <0>; status = "okay"; }; }; fragment@1 { target-path = "/clocks"; __overlay__ { ac108_mclk: codec-mclk { compatible = "fixed-clock"; #clock-cells = <0>; clock-frequency = <24000000>; }; }; }; fragment@2 { target = <&i2c1>; __overlay__ { #address-cells = <1>; #size-cells = <0>; status = "okay"; ac108_a: ac108@3b{ compatible = "x-power,ac108_0"; reg = <0x3b>; #sound-dai-cells = <0>; data-protocol = <0>; }; }; }; fragment@3 { target = <&sound>; sound_overlay: __overlay__ { compatible = "simple-audio-card"; simple-audio-card,format = "dsp_a"; simple-audio-card,name = "seeed-4mic-voicecard"; status = "okay"; simple-audio-card,bitclock-master = <&codec_dai>; simple-audio-card,frame-master = <&codec_dai>; cpu_dai: simple-audio-card,cpu { sound-dai = <&i2s>; dai-tdm-slot-num = <2>; dai-tdm-slot-width = <32>; dai-tdm-slot-tx-mask = <1 1 0 0>; dai-tdm-slot-rx-mask = <1 1 0 0>; }; codec_dai: simple-audio-card,codec { sound-dai = <&ac108_a>; clocks = <&ac108_mclk>; }; }; }; __overrides__ { card-name = <&sound_overlay>,"seeed-voicecard,name"; }; };