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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Device Tree for ULCB + Audio Graph Card (MIX)
   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                 compatible = "audio-graph-scu-card";
  24                 label = "snd-ulcb-mix";
  25
  26                 routing = "ak4613 Playback", "DAI0 Playback",
  27                           "ak4613 Playback", "DAI1 Playback",
  28                           "DAI0 Capture",    "ak4613 Capture";
  29
  30                 dais = <&snd_ulcb1 /* (A) CPU0 */
  31                         &snd_ulcb2 /* (B) CPU1 */
  32                 >;
  33         };
  34 };
  35
  36 &ak4613 {
  37         port {
  38                 #address-cells = <1>;
  39                 #size-cells = <0>;
  40
  41                 /*
  42                  * (X) ak4613
  43                  */
  44                 prefix = "ak4613";
  45                 convert-rate = <48000>;
  46
  47                 /* (A) CPU0 <-> (X) ak4613 */
  48                 ak4613_ep1: endpoint@0 {
  49                         reg = <0>;
  50                         remote-endpoint = <&rsnd_for_ak4613_1>;
  51                 };
  52                 /* (B) CPU1 -> (X) ak4613 */
  53                 ak4613_ep2: endpoint@1 {
  54                         reg = <1>;
  55                         remote-endpoint = <&rsnd_for_ak4613_2>;
  56                 };
  57         };
  58 };
  59
  60 &rcar_sound {
  61         #address-cells = <1>;
  62         #size-cells = <0>;
  63
  64         ports@0 {
  65                 #address-cells = <1>;
  66                 #size-cells = <0>;
  67                 reg = <0>;
  68
  69                 /*
  70                  * (A) CPU0
  71                  */
  72                 snd_ulcb1: port@0 {
  73                         reg = <0>;
  74                         rsnd_for_ak4613_1: endpoint {
  75                                 remote-endpoint = <&ak4613_ep1>;
  76                                 bitclock-master;
  77                                 frame-master;
  78                                 playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
  79                                 capture  = <&ssi1 &src0 &dvc1>;
  80                         };
  81                 };
  82                 /*
  83                  * (B) CPU1
  84                  */
  85                 snd_ulcb2: port@1 {
  86                         reg = <1>;
  87                         rsnd_for_ak4613_2: endpoint {
  88                                 remote-endpoint = <&ak4613_ep2>;
  89                                 bitclock-master;
  90                                 frame-master;
  91                                 playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
  92                         };
  93                 };
  94         };
  95 };