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 - pio-transfer                  : use PIO transfer mode
  24
  25 SRC subnode properties:
  26 no properties at this point
  27
  28 DAI subnode properties:
  29 - playback                      : list of playback modules
  30 - capture                       : list of capture  modules
  31
  32 Example:
  33
  34 rcar_sound: rcar_sound@0xffd90000 {
  35         #sound-dai-cells = <1>;
  36         compatible = "renesas,rcar_sound-gen2";
  37         reg =   <0 0xec500000 0 0x1000>, /* SCU */
  38                 <0 0xec5a0000 0 0x100>,  /* ADG */
  39                 <0 0xec540000 0 0x1000>, /* SSIU */
  40                 <0 0xec541000 0 0x1280>; /* SSI */
  41
  42         rcar_sound,src {
  43                 src0: src@0 { };
  44                 src1: src@1 { };
  45                 src2: src@2 { };
  46                 src3: src@3 { };
  47                 src4: src@4 { };
  48                 src5: src@5 { };
  49                 src6: src@6 { };
  50                 src7: src@7 { };
  51                 src8: src@8 { };
  52                 src9: src@9 { };
  53         };
  54
  55         rcar_sound,ssi {
  56                 ssi0: ssi@0 {
  57                         interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>;
  58                 };
  59                 ssi1: ssi@1 {
  60                         interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>;
  61                 };
  62                 ssi2: ssi@2 {
  63                         interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>;
  64                 };
  65                 ssi3: ssi@3 {
  66                         interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>;
  67                 };
  68                 ssi4: ssi@4 {
  69                         interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>;
  70                 };
  71                 ssi5: ssi@5 {
  72                         interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>;
  73                 };
  74                 ssi6: ssi@6 {
  75                         interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>;
  76                 };
  77                 ssi7: ssi@7 {
  78                         interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>;
  79                 };
  80                 ssi8: ssi@8 {
  81                         interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>;
  82                 };
  83                 ssi9: ssi@9 {
  84                         interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>;
  85                 };
  86         };
  87
  88         rcar_sound,dai {
  89                 dai0 {
  90                         playback = <&ssi5 &src5>;
  91                         capture  = <&ssi6>;
  92                 };
  93                 dai1 {
  94                         playback = <&ssi3>;
  95                 };
  96                 dai2 {
  97                         capture  = <&ssi4>;
  98                 };
  99                 dai3 {
 100                         playback = <&ssi7>;
 101                 };
 102                 dai4 {
 103                         capture  = <&ssi8>;
 104                 };
 105         };
 106 };