Documentation/devicetree/bindings/sound/renesas,rsnd.txt

   1 Renesas R-Car sound
   2
   3 Required properties:
   4 - compatible                    : "renesas,rcar_sound-gen1" if generation1
   5                                   "renesas,rcar_sound-gen2" if generation2
   6 - reg                           : Should contain the register physical address.
   7                                   required register is
   8                                    SRU/ADG/SSI      if generation1
   9                                    SRU/ADG/SSIU/SSI if generation2
  10 - rcar_sound,ssi                : Should contain SSI feature.
  11                                   The number of SSI subnode should be same as HW.
  12                                   see below for detail.
  13 - rcar_sound,src                : Should contain SRC feature.
  14                                   The number of SRC subnode should be same as HW.
  15                                   see below for detail.
  16 - rcar_sound,dai                : DAI contents.
  17                                   The number of DAI subnode should be same as HW.
  18                                   see below for detail.
  19
  20 SSI subnode properties:
  21 - interrupts                    : Should contain SSI interrupt for PIO transfer
  22 - shared-pin                    : if shared clock pin
  23
  24 SRC subnode properties:
  25 no properties at this point
  26
  27 DAI subnode properties:
  28 - playback                      : list of playback modules
  29 - capture                       : list of capture  modules
  30
  31 Example:
  32
  33 rcar_sound: rcar_sound@0xffd90000 {
  34         #sound-dai-cells = <1>;
  35         compatible = "renesas,rcar_sound-gen2";
  36         reg =   <0 0xec500000 0 0x1000>, /* SCU */
  37                 <0 0xec5a0000 0 0x100>,  /* ADG */
  38                 <0 0xec540000 0 0x1000>, /* SSIU */
  39                 <0 0xec541000 0 0x1280>; /* SSI */
  40
  41         rcar_sound,src {
  42                 src0: src@0 { };
  43                 src1: src@1 { };
  44                 src2: src@2 { };
  45                 src3: src@3 { };
  46                 src4: src@4 { };
  47                 src5: src@5 { };
  48                 src6: src@6 { };
  49                 src7: src@7 { };
  50                 src8: src@8 { };
  51                 src9: src@9 { };
  52         };
  53
  54         rcar_sound,ssi {
  55                 ssi0: ssi@0 {
  56                         interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>;
  57                 };
  58                 ssi1: ssi@1 {
  59                         interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>;
  60                 };
  61                 ssi2: ssi@2 {
  62                         interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>;
  63                 };
  64                 ssi3: ssi@3 {
  65                         interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>;
  66                 };
  67                 ssi4: ssi@4 {
  68                         interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>;
  69                 };
  70                 ssi5: ssi@5 {
  71                         interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>;
  72                 };
  73                 ssi6: ssi@6 {
  74                         interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>;
  75                 };
  76                 ssi7: ssi@7 {
  77                         interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>;
  78                 };
  79                 ssi8: ssi@8 {
  80                         interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>;
  81                 };
  82                 ssi9: ssi@9 {
  83                         interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>;
  84                 };
  85         };
  86
  87         rcar_sound,dai {
  88                 dai0 {
  89                         playback = <&ssi5 &src5>;
  90                         capture  = <&ssi6>;
  91                 };
  92                 dai1 {
  93                         playback = <&ssi3>;
  94                 };
  95                 dai2 {
  96                         capture  = <&ssi4>;
  97                 };
  98                 dai3 {
  99                         playback = <&ssi7>;
 100                 };
 101                 dai4 {
 102                         capture  = <&ssi8>;
 103                 };
 104         };
 105 };