arch/arm/boot/dts/overlays/mbed-dac-overlay.dts

   1 // Definitions for mbed DAC
   2 /dts-v1/;
   3 /plugin/;
   4
   5 / {
   6         compatible = "brcm,bcm2835";
   7
   8         fragment@0 {
   9                 target = <&i2s>;
  10                 __overlay__ {
  11                         status = "okay";
  12                 };
  13         };
  14
  15         fragment@1 {
  16                 target = <&i2c1>;
  17                 __overlay__ {
  18                         #address-cells = <1>;
  19                         #size-cells = <0>;
  20                         status = "okay";
  21
  22                         tlv320aic23: codec@1a {
  23                                 #sound-dai-cells = <0>;
  24                                 reg = <0x1a>;
  25                                 compatible = "ti,tlv320aic23";
  26                                 status = "okay";
  27                         };
  28                 };
  29         };
  30
  31         fragment@2 {
  32                 target = <&sound>;
  33                 __overlay__ {
  34                         compatible = "simple-audio-card";
  35                         i2s-controller = <&i2s>;
  36                         status = "okay";
  37
  38                         simple-audio-card,name = "mbed-DAC";
  39
  40                         simple-audio-card,widgets =
  41                                 "Microphone", "Mic Jack",
  42                                 "Line", "Line In",
  43                                 "Headphone", "Headphone Jack";
  44
  45                         simple-audio-card,routing =
  46                                 "Headphone Jack", "LHPOUT",
  47                                 "Headphone Jack", "RHPOUT",
  48                                 "LLINEIN", "Line In",
  49                                 "RLINEIN", "Line In",
  50                                 "MICIN", "Mic Jack";
  51
  52                         simple-audio-card,format = "i2s";
  53
  54                         simple-audio-card,cpu {
  55                                 sound-dai = <&i2s>;
  56                         };
  57
  58                         sound_master: simple-audio-card,codec {
  59                                 sound-dai = <&tlv320aic23>;
  60                                 system-clock-frequency = <12288000>;
  61                         };
  62                 };
  63         };
  64 };