arch/arm64/boot/dts/renesas/ulcb-simple-audio-card-mix+split.dtsi

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Device Tree for ULCB + Simple Audio Card (MIXer)
   4  *
   5  * Copyright (C) 2022 Renesas Electronics Corp.
   6  */
   7
   8 /*
   9  * Note:
  10  * The HDMI output is ignored due to the limited number of subdevices
  11  *
  12  *      (A) CPU0 (2ch) <----> (2ch) (X) ak4613  (MIX-0)
  13  *      (B) CPU1 (2ch)  --/                     (MIX-1)
  14  *
  15  *      (A) aplay   -D plughw:0,0 xxx.wav
  16  *      (B) aplay   -D plughw:0,1 xxx.wav
  17  *
  18  *      (A) arecord -D plughw:0,0 xxx.wav
  19  */
  20
  21 / {
  22         sound_card: sound {
  23                 #address-cells = <1>;
  24                 #size-cells = <0>;
  25
  26                 compatible = "simple-scu-audio-card";
  27                 label = "snd-ulcb-mix";
  28
  29                 simple-audio-card,prefix  = "ak4613";
  30                 simple-audio-card,routing = "ak4613 Playback", "DAI0 Playback",
  31                                             "ak4613 Playback", "DAI1 Playback",
  32                                             "DAI0 Capture",    "ak4613 Capture";
  33
  34                 simple-audio-card,dai-link@0 {
  35                         #address-cells = <1>;
  36                         #size-cells = <0>;
  37                         reg = <0>;
  38                         convert-rate = <48000>;
  39
  40                         /*
  41                          * (A) CPU0
  42                          */
  43                         cpu@0 {
  44                                 reg = <0>;
  45                                 bitclock-master;
  46                                 frame-master;
  47                                 sound-dai = <&rcar_sound 0>;
  48                         };
  49                         /*
  50                          * (B) CPU1
  51                          */
  52                         cpu@1 {
  53                                 reg = <1>;
  54                                 sound-dai = <&rcar_sound 1>;
  55                         };
  56                         /*
  57                          * (X) ak4613
  58                          */
  59                         codec {
  60                                 prefix = "ak4613";
  61                                 sound-dai = <&ak4613>;
  62                         };
  63                 };
  64         };
  65 };
  66
  67 &ak4613 {
  68         /*
  69          * (X) ak4613
  70          */
  71         #sound-dai-cells = <0>;
  72 };
  73
  74 &rcar_sound {
  75         #address-cells = <1>;
  76         #size-cells = <0>;
  77         #sound-dai-cells = <1>;
  78
  79         rcar_sound,dai@0 {
  80                 reg = <0>;
  81
  82                 /*
  83                  * (A) CPU0
  84                  */
  85                 dai0 {
  86                         playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
  87                         capture  = <&ssi1 &src0 &dvc1>;
  88                 };
  89                 /*
  90                  * (B) CPU1
  91                  */
  92                 dai1 {
  93                         playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
  94                 };
  95         };
  96 };