arch/arm64/boot/dts/renesas/ulcb-audio-graph-card2-mix+split.dtsi

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Device Tree for ULCB + Audio Graph Card2 (MIX + TDM Split)
   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         sound_card: sound {
  22                 compatible = "audio-graph-card2";
  23                 label = "snd-ulcb-mix";
  24
  25                 routing = "ak4613 Playback", "DAI0 Playback",
  26                           "ak4613 Playback", "DAI1 Playback",
  27                           "DAI0 Capture",    "ak4613 Capture";
  28
  29                 links = <&fe_a          /* (A) CPU0   */
  30                          &fe_b          /* (B) CPU1   */
  31                          &be_x          /* (X) ak4613 */
  32                 >;
  33
  34                 dpcm {
  35                         #address-cells = <1>;
  36                         #size-cells = <0>;
  37
  38                         ports@0 {
  39                                 #address-cells = <1>;
  40                                 #size-cells = <0>;
  41                                 reg = <0>;
  42                                 /*
  43                                  * FE
  44                                  * (A) CPU0 (MIX-0)
  45                                  * (B) CPU1 (MIX-1)
  46                                  */
  47                                 fe_a: port@0 { reg = <0>; fe_a_ep: endpoint { remote-endpoint = <&rsnd_a_ep>; }; };
  48                                 fe_b: port@1 { reg = <1>; fe_b_ep: endpoint { remote-endpoint = <&rsnd_b_ep>; }; };
  49                         };
  50
  51                         ports@1 {
  52                                 reg = <1>;
  53                                 /*
  54                                  * BE
  55                                  * (X) ak4613
  56                                  */
  57                                 be_x: port { be_x_ep: endpoint { remote-endpoint = <&ak4613_x_ep>; }; };
  58                         };
  59                 };
  60         };
  61 };
  62
  63 &ak4613 {
  64         port {
  65                 /*
  66                  * (X) ak4613
  67                  */
  68                 prefix = "ak4613";
  69                 convert-rate = <48000>;
  70
  71                 ak4613_x_ep: endpoint {
  72                         remote-endpoint = <&be_x_ep>;
  73                 };
  74         };
  75 };
  76
  77 &rcar_sound {
  78         #address-cells = <1>;
  79         #size-cells = <0>;
  80
  81         ports@0 {
  82                 #address-cells = <1>;
  83                 #size-cells = <0>;
  84                 reg = <0>;
  85
  86                 /*
  87                  * (A) CPU0
  88                  */
  89                 port@0 {
  90                         reg = <0>;
  91                         rsnd_a_ep: endpoint {
  92                                 remote-endpoint = <&fe_a_ep>;
  93                                 bitclock-master;
  94                                 frame-master;
  95                                 playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
  96                                 capture  = <&ssi1 &src0 &dvc1>;
  97                         };
  98                 };
  99                 /*
 100                  * (B) CPU1
 101                  */
 102                 port@1 {
 103                         reg = <1>;
 104                         rsnd_b_ep: endpoint {
 105                                 remote-endpoint = <&fe_b_ep>;
 106                                 bitclock-master;
 107                                 frame-master;
 108                                 playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
 109                         };
 110                 };
 111         };
 112 };