seeed-voicecard/seeed-8mic-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__ {
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ac10x_mclk: codec-mclk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <24000000>;
};
};
};
fragment@2 {
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target = <&gpio>;
__overlay__ {
spk_amp_switch_pins: speaker_amp_switch_pins {
brcm,pins = <17>;
brcm,function = <1>; /* out */
};
gpclk0_pins: gpclk0_pins {
brcm,pins = <4>;
brcm,function = <4>; /* alt func 0 */
};
};
};
fragment@3 {
target = <&i2c1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
ac101: ac101@1a{
compatible = "x-power,ac101";
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pinctrl-names = "default";
pinctrl-0 = <&spk_amp_switch_pins>,<&gpclk0_pins>;
spk-amp-switch-gpios = <&gpio 17 0>;
reg = <0x1a>;
#sound-dai-cells = <0>;
};
ac108_a: ac108@35{
compatible = "x-power,ac108_0";
reg = <0x35>;
#sound-dai-cells = <0>;
data-protocol = <0>;
};
ac108_b: ac108@3b{
compatible = "x-power,ac108_1";
reg = <0x3b>;
#sound-dai-cells = <0>;
data-protocol = <0>;
};
};
};
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fragment@4 {
target = <&sound>;
sound_overlay: __overlay__ {
compatible = "simple-audio-card";
simple-audio-card,name = "seeed-8mic-voicecard";
simple-audio-card,channels-playback-override = <8>;
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simple-audio-card,channels-capture-override = <8>;
status = "okay";
simple-audio-card,dai-link@0 {
format = "dsp_a";
bitclock-master = <&codec0_dai>;
frame-master = <&codec0_dai>;
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>;
};
codec0_dai: codec {
sound-dai = <&ac108_b>;
clocks = <&ac10x_mclk>;
system-clock-id = <1>;
};
};
simple-audio-card,dai-link@1 {
format = "dsp_a";
bitclock-master = <&codec1_dai>;
frame-master = <&codec1_dai>;
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>;
};
codec1_dai: codec {
sound-dai = <&ac101>;
clocks = <&ac10x_mclk>;
system-clock-id = <1>;
};
};
};
};
__overrides__ {
card-name = <&sound_overlay>,"seeed-voicecard,name";
};
};