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,dvc                : Should contain DVC feature.
  17                                   The number of DVC subnode should be same as HW.
  18                                   see below for detail.
  19 - rcar_sound,dai                : DAI contents.
  20                                   The number of DAI subnode should be same as HW.
  21                                   see below for detail.
  22
  23 SSI subnode properties:
  24 - interrupts                    : Should contain SSI interrupt for PIO transfer
  25 - shared-pin                    : if shared clock pin
  26 - pio-transfer                  : use PIO transfer mode
  27 - no-busif                      : BUSIF is not ussed when [mem -> SSI] via DMA case
  28
  29 SRC subnode properties:
  30 no properties at this point
  31
  32 DAI subnode properties:
  33 - playback                      : list of playback modules
  34 - capture                       : list of capture  modules
  35
  36 Example:
  37
  38 rcar_sound: rcar_sound@0xffd90000 {
  39         #sound-dai-cells = <1>;
  40         compatible = "renesas,rcar_sound-gen2";
  41         reg =   <0 0xec500000 0 0x1000>, /* SCU */
  42                 <0 0xec5a0000 0 0x100>,  /* ADG */
  43                 <0 0xec540000 0 0x1000>, /* SSIU */
  44                 <0 0xec541000 0 0x1280>; /* SSI */
  45
  46         rcar_sound,dvc {
  47                 dvc0: dvc@0 { };
  48                 dvc1: dvc@1 { };
  49         };
  50
  51         rcar_sound,src {
  52                 src0: src@0 { };
  53                 src1: src@1 { };
  54                 src2: src@2 { };
  55                 src3: src@3 { };
  56                 src4: src@4 { };
  57                 src5: src@5 { };
  58                 src6: src@6 { };
  59                 src7: src@7 { };
  60                 src8: src@8 { };
  61                 src9: src@9 { };
  62         };
  63
  64         rcar_sound,ssi {
  65                 ssi0: ssi@0 {
  66                         interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>;
  67                 };
  68                 ssi1: ssi@1 {
  69                         interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>;
  70                 };
  71                 ssi2: ssi@2 {
  72                         interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>;
  73                 };
  74                 ssi3: ssi@3 {
  75                         interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>;
  76                 };
  77                 ssi4: ssi@4 {
  78                         interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>;
  79                 };
  80                 ssi5: ssi@5 {
  81                         interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>;
  82                 };
  83                 ssi6: ssi@6 {
  84                         interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>;
  85                 };
  86                 ssi7: ssi@7 {
  87                         interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>;
  88                 };
  89                 ssi8: ssi@8 {
  90                         interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>;
  91                 };
  92                 ssi9: ssi@9 {
  93                         interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>;
  94                 };
  95         };
  96
  97         rcar_sound,dai {
  98                 dai0 {
  99                         playback = <&ssi5 &src5>;
 100                         capture  = <&ssi6>;
 101                 };
 102                 dai1 {
 103                         playback = <&ssi3>;
 104                 };
 105                 dai2 {
 106                         capture  = <&ssi4>;
 107                 };
 108                 dai3 {
 109                         playback = <&ssi7>;
 110                 };
 111                 dai4 {
 112                         capture  = <&ssi8>;
 113                 };
 114         };
 115 };