Pillgram::Audio

TLV320AIC3110

Schematics

Device Tree

/dts-v1/; /plugin/; / { compatible = "brcm,bcm2712", "brcm,bcm2711", "brcm,bcm2835"; fragment@0 { target = <&i2s>; // For RPi4 __overlay__ { status = "okay"; #sound-dai-cells = <0>; brcm,tx-channels = <2>; brcm,rx-channels = <2>; }; }; fragment@2 { target-path = "/"; __overlay__ { codec_1v8_reg: codec-1v8-reg { compatible = "regulator-fixed"; regulator-name = "tlv320aic3104_1v8"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; regulator-always-on; }; }; }; fragment@3 { target = <&i2c1>; __overlay__ { #address-cells = <1>; /* Single cell for I2C address */ #size-cells = <0>; /* No size cells for I2C devices */ status = "okay"; tlv320aic3110: tlv320aic3110@18 { compatible = "ti,tlv320aic3110", "ti,tlv320aic311x"; reg = <0x18>; #sound-dai-cells = <0>; // system-clock-frequency = <12288000>; // Codec clock config // system-clock-direction-out; // Codec as master status = "okay"; HPVDD-supply = <&vdd_3v3_reg>; SPRVDD-supply = <&vdd_5v0_reg>; SPLVDD-supply = <&vdd_5v0_reg>; AVDD-supply = <&vdd_3v3_reg>; IOVDD-supply = <&vdd_3v3_reg>; DVDD-supply = <&codec_1v8_reg>; clocks = <&mclk_external>; clock-names = "mclk"; // system-clk-frequency = <12288000>; mclk-frequency = <12288000>; // gpio-controller; /* PLL configuration for 48kHz with 12.288MHz MCLK */ pll-p = <1>; pll-r = <1>; pll-j = <7>; pll-d = <1680>; reset-gpios = <&gpio 13 0>; // GPIO 13 as active high reset-delay-us = <10000>; /* 10ms delay */ // Debug properties debug; linux,debug; }; }; }; fragment@5 { target = <&sound>; __overlay__ { compatible = "simple-audio-card"; simple-audio-card,name = "TLV320AIC3110"; simple-audio-card,format = "i2s"; // simple-audio-card,bitclock-master = <&dailink0_master>; // simple-audio-card,frame-master = <&dailink0_master>; simple-audio-card,widgets = "Microphone", "Mic Jack", "Speaker", "Speaker Left", "Speaker", "Speaker Right"; simple-audio-card,routing = "Speaker Left", "SPL", "Speaker Right", "SPR", "MIC1LP", "Mic Jack", "MIC1LM", "Mic Jack"; status = "okay"; simple-audio-card,cpu { sound-dai = <&i2s>; }; dailink0_master: simple-audio-card,codec { sound-dai = <&tlv320aic3110>; clocks = <&mclk_external>; system-clock-frequency = <12288000>; //*** added LAX mclk-fs = <256>; //*** added LAX }; }; }; fragment@6 { target-path = "/"; __overlay__ { mclk_external: mclk_external { compatible = "fixed-clock"; #clock-cells = <0>; clock-frequency = <12288000>; // 12.288 MHz clock-output-names = "mclk"; }; }; }; };