arch/arm64/boot/dts/renesas/ulcb-kf-audio-graph-card.dtsi

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Device Tree for ULCB + Kingfisher + Audio Graph Card
   4  *
   5  * Copyright (C) 2022 Renesas Electronics Corp.
   6  */
   7
   8 /*
   9  *      (A) CPU0 <----> ak4613
  10  *      (B) CPU1  ----> HDMI
  11  *      (C) CPU2  ----> PCM3168A-p (8ch)
  12  *      (D) CPU3 <----  PCM3168A-c (6ch)
  13  *
  14  *      (A) aplay   -D plughw:0,0 xxx.wav
  15  *      (B) aplay   -D plughw:0,1 xxx.wav
  16  *      (C) aplay   -D plughw:1,0 xxx.wav
  17  *
  18  *      (A) arecord -D plughw:0,0 xxx.wav
  19  *      (D) arecord -D plughw:1,1 xxx.wav
  20  */
  21 / {
  22         sound_card_kf: expand-sound {
  23                 compatible = "audio-graph-card";
  24                 label = "snd-kf";
  25
  26                 dais = <&snd_kf1 /* (C) CPU2  -> PCM3168A-p */
  27                         &snd_kf2 /* (D) CPU3 <-  PCM3168A-c */
  28                 >;
  29         };
  30 };
  31
  32 &pcm3168a {
  33         ports {
  34                 #address-cells = <1>;
  35                 #size-cells = <0>;
  36                 mclk-fs = <512>;
  37                 /*
  38                  * (C) CPU2 -> PCM3168A-p
  39                  */
  40                 port@0 {
  41                         reg = <0>;
  42                         pcm3168a_endpoint_p: endpoint {
  43                                 remote-endpoint = <&rsnd_for_pcm3168a_play>;
  44                                 clocks = <&clksndsel>;
  45                         };
  46                 };
  47                 /*
  48                  * (D) CPU3 <- PCM3168A-c
  49                  */
  50                 port@1 {
  51                         reg = <1>;
  52                         pcm3168a_endpoint_c: endpoint {
  53                                 remote-endpoint = <&rsnd_for_pcm3168a_capture>;
  54                                 clocks = <&clksndsel>;
  55                         };
  56                 };
  57         };
  58 };
  59
  60 &rcar_sound {
  61         ports@1 {
  62                 #address-cells = <1>;
  63                 #size-cells = <0>;
  64                 reg = <1>;
  65
  66                 /*
  67                  * (C) CPU2 -> PCM3168A-p
  68                  */
  69                 snd_kf1: port@2 {
  70                         reg = <2>;
  71                         rsnd_for_pcm3168a_play: endpoint {
  72                                 remote-endpoint = <&pcm3168a_endpoint_p>;
  73                                 bitclock-master;
  74                                 frame-master;
  75                                 dai-tdm-slot-num = <8>;
  76                                 playback = <&ssi3>;
  77                         };
  78                 };
  79                 /*
  80                  * (D) CPU3 <- PCM3168A-c
  81                  */
  82                 snd_kf2: port@3 {
  83                         reg = <3>;
  84                         rsnd_for_pcm3168a_capture: endpoint {
  85                                 remote-endpoint = <&pcm3168a_endpoint_c>;
  86                                 bitclock-master;
  87                                 frame-master;
  88                                 dai-tdm-slot-num = <6>;
  89                                 capture = <&ssi4>;
  90                         };
  91                 };
  92         };
  93 };