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bumble-auracast/src/misc/pcm1862-i2s.dts

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/dts-v1/;
/plugin/;
/ {
compatible = "brcm,bcm2835";
/* Enable the I²S controller */
fragment@0 {
target = <&i2s>;
__overlay__ {
status = "okay";
};
};
/* PCM1862 on I2C1 at 0x4a (change if your bus/address differ) */
fragment@1 {
target = <&i2c1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
pcm1862: adc@4a {
compatible = "ti,pcm1862";
reg = <0x4a>;
#sound-dai-cells = <0>;
/* Rails are hard-powered on your board, so no regulators here */
};
};
};
/* Link bcm2835-i2s <-> pcm1862 via simple-audio-card */
fragment@2 {
target-path = "/";
__overlay__ {
pcm1862_sound: pcm1862-sound {
compatible = "simple-audio-card";
simple-audio-card,name = "pcm1862 on i2s";
simple-audio-card,format = "i2s";
/* Pi is master for BCLK/LRCLK */
simple-audio-card,bitclock-master = <&dai_cpu>;
simple-audio-card,frame-master = <&dai_cpu>;
dai_cpu: simple-audio-card,cpu {
sound-dai = <&i2s>;
dai-tdm-slot-num = <2>;
dai-tdm-slot-width = <32>;
};
simple-audio-card,codec {
sound-dai = <&pcm1862>;
};
};
};
};
};