seeed-voicecard/seeed-4mic-voicecard-overlay.dts

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/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 = "seeed-voicecard";
seeed-voice-card,format = "dsp_a";
seeed-voice-card,name = "seeed-4mic-voicecard";
status = "okay";
seeed-voice-card,bitclock-master = <&codec_dai>;
seeed-voice-card,frame-master = <&codec_dai>;
seeed-voice-card,channels-playback-override = <4>;
seeed-voice-card,channels-capture-override = <4>;
cpu_dai: seeed-voice-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: seeed-voice-card,codec {
sound-dai = <&ac108_a>;
clocks = <&ac108_mclk>;
};
};
};
__overrides__ {
card-name = <&sound_overlay>,"seeed-voice-card,name";
};
};