arch/arm/boot/dts/overlays/tc358743-audio-overlay.dts

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 // Definitions to add I2S audio from the Toshiba TC358743 HDMI to CSI2 bridge.
   3 // Requires tc358743 overlay to have been loaded to actually function.
   4 /dts-v1/;
   5 /plugin/;
   6
   7 / {
   8         compatible = "brcm,bcm2835";
   9
  10         fragment@0 {
  11                 target = <&i2s>;
  12                 __overlay__ {
  13                         status = "okay";
  14                 };
  15         };
  16
  17         fragment@1 {
  18                 target-path = "/";
  19                 __overlay__ {
  20                         tc358743_codec: tc358743-codec {
  21                                 #sound-dai-cells = <0>;
  22                                 compatible = "linux,spdif-dir";
  23                                 status = "okay";
  24                         };
  25                 };
  26         };
  27
  28         fragment@2 {
  29                 target = <&sound>;
  30                 sound_overlay: __overlay__ {
  31                         compatible = "simple-audio-card";
  32                         simple-audio-card,format = "i2s";
  33                         simple-audio-card,name = "tc358743";
  34                         simple-audio-card,bitclock-master = <&dailink0_slave>;
  35                         simple-audio-card,frame-master = <&dailink0_slave>;
  36                         status = "okay";
  37
  38                         simple-audio-card,cpu {
  39                                 sound-dai = <&i2s>;
  40                                 dai-tdm-slot-num = <2>;
  41                                 dai-tdm-slot-width = <32>;
  42                         };
  43                         dailink0_slave: simple-audio-card,codec {
  44                                 sound-dai = <&tc358743_codec>;
  45                         };
  46                 };
  47         };
  48
  49         __overrides__ {
  50                 card-name = <&sound_overlay>,"simple-audio-card,name";
  51         };
  52 };