pipad-i2s-soundcard-overlay.dts

/dts-v1/;
/plugin/;

/ {
    compatible = "brcm,bcm2835";
    fragment@0 {
        target = <&gpio>;
        __overlay__ {
            amp_enable: amp_enable {
                brcm,pins = <17>;
                brcm,function = <1>;
                brcm,pull = <1>;
            };
        };
    };

    fragment@1 {
        target-path = "/";
        __overlay__ {

            vcc30: fixedregulator@1 {
                regulator-boot-on;
                compatible = "regulator-fixed";
                regulator-name = "soundcard30";
                regulator-min-microvolt = <3000000>;
                regulator-max-microvolt = <3000000>;
                gpio = <&gpio 22 0>;
                startup-delay-us = <70000>;
                enable-active-high;
                vin-supply = <&vdd_3v3_reg>;
            };
            vcc18: fixedregulator@2 {
                regulator-boot-on;
                compatible = "regulator-fixed";
                regulator-name = "soundcard18";
                regulator-min-microvolt = <1800000>;
                regulator-max-microvolt = <1800000>;
                gpio = <&gpio 22 0>;
                startup-delay-us = <70000>;
                enable-active-high;
                vin-supply = <&vdd_3v3_reg>;
            };

            amp: analog-amplifier {
                compatible = "simple-audio-amplifier";
                enable-gpios = <&gpio 17 0>;
                VCC-supply = <&vdd_3v3_reg>;
            };
        };
    };

    fragment@2 {
        target = <&i2c1>;
        __overlay__ {
            #address-cells = <1>;
            #size-cells = <0>;

            tlv320aic3104: tlv320aic3104@24 {
                // #address-cells = <1>;
                // #size-cells = <0>;
                status = "okay";
                #sound-dai-cells = <0>;
                compatible = "ti,tlv320aic3104";
                reg = <0x18>;

                reset-gpios = <&gpio 27 0>;
                ai3x-ocmv = <0>;
                // AVDD-supply = <&vcc30>;
                // DRVDD-supply = <&vcc30>;
                // DVDD-supply = <&vcc18>;
                // IOVDD-supply = <&vdd_3v3_reg>;
            };
        };
    };

    fragment@3 {
        target = <&i2s>;
        __overlay__ {
            status = "okay";
        };
    };

    fragment@4 {
        target = <&sound>;
        __overlay__ {
            compatible = "simple-audio-card";
            i2s_controller = <&i2s>;
            status = "okay";
            simple-audio-card,name = "pipad";
            simple-audio-card,format = "i2s";

            simple-audio-card,bitclock-master = <&dailink0_master>;
            simple-audio-card,frame-master = <&dailink0_master>;

            simple-audio-card,widgets =
                "Microphone", "Microphone Jack",
                "Microphone", "Internal Microphone",
                "Headphone", "Headphone Jack",
                "Line", "Line Out",
                "Speaker", "Internal Speaker";
            simple-audio-card,routing =
                "Line Out", "HPLCOM",
                "Line Out", "HPRCOM",
                "Headphone Jack", "HPLOUT",
                "Headphone Jack", "HPROUT",
                "Microphone Jack", "MIC2L",
                "Internal Microphone", "LINE1L",
                "Internal Speaker", "LLOUT",
                "Internal Speaker", "RLOUT";

            simple-audio-card,aux-devs = <&amp>;
            dailink0_master: simple-audio-card,cpu {
                sound-dai = <&i2s>;
            };
            simple-audio-card,codec {
                sound-dai = <&tlv320aic3104>;
                system-clock-frequency = <12288000>;
            };
        };
    };
};