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

   1 Renesas R-Car sound
   2
   3 =============================================
   4 * Modules
   5 =============================================
   6
   7 Renesas R-Car and RZ/G sound is constructed from below modules
   8 (for Gen2 or later)
   9
  10  SCU            : Sampling Rate Converter Unit
  11   - SRC         : Sampling Rate Converter
  12   - CMD
  13    - CTU        : Channel Transfer Unit
  14    - MIX        : Mixer
  15    - DVC        : Digital Volume and Mute Function
  16  SSIU           : Serial Sound Interface Unit
  17  SSI            : Serial Sound Interface
  18
  19 See detail of each module's channels, connection, limitation on datasheet
  20
  21 =============================================
  22 * Multi channel
  23 =============================================
  24
  25 Multi channel is supported by Multi-SSI, or TDM-SSI.
  26
  27  Multi-SSI      : 6ch case, you can use stereo x 3 SSI
  28  TDM-SSI        : 6ch case, you can use TDM
  29
  30 =============================================
  31 * Enable/Disable each modules
  32 =============================================
  33
  34 See datasheet to check SRC/CTU/MIX/DVC connect-limitation.
  35 DT controls enabling/disabling module.
  36 ${LINUX}/arch/arm/boot/dts/r8a7790-lager.dts can be good example.
  37 This is example of
  38
  39 Playback: [MEM] -> [SRC2] -> [DVC0] -> [SSIU0/SSI0] -> [codec]
  40 Capture:  [MEM] <- [DVC1] <- [SRC3] <- [SSIU1/SSI1] <- [codec]
  41
  42         &rcar_sound {
  43                 ...
  44                 rcar_sound,dai {
  45                         dai0 {
  46                                 playback = <&ssi0 &src2 &dvc0>;
  47                                 capture  = <&ssi1 &src3 &dvc1>;
  48                         };
  49                 };
  50         };
  51
  52 You can use below.
  53 ${LINUX}/arch/arm/boot/dts/r8a7790.dts can be good example.
  54
  55         &src0   &ctu00  &mix0   &dvc0   &ssi0
  56         &src1   &ctu01  &mix1   &dvc1   &ssi1
  57         &src2   &ctu02                  &ssi2
  58         &src3   &ctu03                  &ssi3
  59         &src4                           &ssi4
  60         &src5   &ctu10                  &ssi5
  61         &src6   &ctu11                  &ssi6
  62         &src7   &ctu12                  &ssi7
  63         &src8   &ctu13                  &ssi8
  64         &src9                           &ssi9
  65
  66 =============================================
  67 * SRC (Sampling Rate Converter)
  68 =============================================
  69
  70  [xx]Hz        [yy]Hz
  71  ------> [SRC] ------>
  72
  73 SRC can convert [xx]Hz to [yy]Hz. Then, it has below 2 modes
  74
  75  Asynchronous mode:     input data / output data are based on different clocks.
  76                         you can use this mode on Playback / Capture
  77  Synchronous mode:      input data / output data are based on same clocks.
  78                         This mode will be used if system doesn't have its input clock,
  79                         for example digital TV case.
  80                         you can use this mode on Playback
  81
  82 ------------------
  83 **     Asynchronous mode
  84 ------------------
  85
  86 You need to use "simple-scu-audio-card" sound card for it.
  87 example)
  88
  89         sound {
  90                 compatible = "simple-scu-audio-card";
  91                 ...
  92                 /*
  93                  * SRC Asynchronous mode setting
  94                  * Playback:
  95                  * All input data will be converted to 48kHz
  96                  * Capture:
  97                  * Inputed 48kHz data will be converted to
  98                  * system specified Hz
  99                  */
 100                 simple-audio-card,convert-rate = <48000>;
 101                 ...
 102                 simple-audio-card,cpu {
 103                         sound-dai = <&rcar_sound>;
 104                 };
 105                 simple-audio-card,codec {
 106                         ...
 107                 };
 108         };
 109
 110 ------------------
 111 **     Synchronous mode
 112 ------------------
 113
 114         > amixer set "SRC Out Rate" on
 115         > aplay xxxx.wav
 116         > amixer set "SRC Out Rate" 48000
 117         > amixer set "SRC Out Rate" 44100
 118
 119 =============================================
 120 * CTU (Channel Transfer Unit)
 121 =============================================
 122
 123  [xx]ch        [yy]ch
 124  ------> [CTU] -------->
 125
 126 CTU can convert [xx]ch to [yy]ch, or exchange outputed channel.
 127 CTU conversion needs matrix settings.
 128 For more detail information, see below
 129
 130         Renesas R-Car datasheet
 131          - Sampling Rate Converter Unit (SCU)
 132           - SCU Operation
 133            - CMD Block
 134             - Functional Blocks in CMD
 135
 136         Renesas R-Car datasheet
 137          - Sampling Rate Converter Unit (SCU)
 138           - Register Description
 139            - CTUn Scale Value exx Register (CTUn_SVxxR)
 140
 141         ${LINUX}/sound/soc/sh/rcar/ctu.c
 142          - comment of header
 143
 144 You need to use "simple-scu-audio-card" sound card for it.
 145 example)
 146
 147         sound {
 148                 compatible = "simple-scu-audio-card";
 149                 ...
 150                 /*
 151                  * CTU setting
 152                  * All input data will be converted to 2ch
 153                  * as output data
 154                  */
 155                 simple-audio-card,convert-channels = <2>;
 156                 ...
 157                 simple-audio-card,cpu {
 158                         sound-dai = <&rcar_sound>;
 159                 };
 160                 simple-audio-card,codec {
 161                         ...
 162                 };
 163         };
 164
 165 Ex) Exchange output channel
 166  Input -> Output
 167   1ch  ->  0ch
 168   0ch  ->  1ch
 169
 170   example of using matrix
 171         output 0ch = (input 0ch x 0) + (input 1ch x 1)
 172         output 1ch = (input 0ch x 1) + (input 1ch x 0)
 173
 174         amixer set "CTU Reset" on
 175         amixer set "CTU Pass" 9,10
 176         amixer set "CTU SV0" 0,4194304
 177         amixer set "CTU SV1" 4194304,0
 178
 179  example of changing connection
 180         amixer set "CTU Reset" on
 181         amixer set "CTU Pass" 2,1
 182
 183 =============================================
 184 * MIX (Mixer)
 185 =============================================
 186
 187 MIX merges 2 sounds path. You can see 2 sound interface on system,
 188 and these sounds will be merged by MIX.
 189
 190         aplay -D plughw:0,0 xxxx.wav &
 191         aplay -D plughw:0,1 yyyy.wav
 192
 193 You need to use "simple-scu-audio-card" sound card for it.
 194 Ex)
 195         [MEM] -> [SRC1] -> [CTU02] -+-> [MIX0] -> [DVC0] -> [SSI0]
 196                                     |
 197         [MEM] -> [SRC2] -> [CTU03] -+
 198
 199         sound {
 200                 #address-cells = <1>;
 201                 #size-cells = <0>;
 202
 203                 compatible = "simple-scu-audio-card";
 204                 ...
 205                 simple-audio-card,cpu@0 {
 206                         reg = <0>;
 207                         sound-dai = <&rcar_sound 0>;
 208                 };
 209                 simple-audio-card,cpu@1 {
 210                         reg = <1>;
 211                         sound-dai = <&rcar_sound 1>;
 212                 };
 213                 simple-audio-card,codec {
 214                         ...
 215                 };
 216         };
 217
 218         &rcar_sound {
 219                 ...
 220                 rcar_sound,dai {
 221                         dai0 {
 222                                 playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
 223                         };
 224                         dai1 {
 225                                 playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
 226                         };
 227                 };
 228         };
 229
 230 =============================================
 231 * DVC (Digital Volume and Mute Function)
 232 =============================================
 233
 234 DVC controls Playback/Capture volume.
 235
 236 Playback Volume
 237         amixer set "DVC Out" 100%
 238
 239 Capture Volume
 240         amixer set "DVC In" 100%
 241
 242 Playback Mute
 243         amixer set "DVC Out Mute" on
 244
 245 Capture Mute
 246         amixer set "DVC In Mute" on
 247
 248 Volume Ramp
 249         amixer set "DVC Out Ramp Up Rate"   "0.125 dB/64 steps"
 250         amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps"
 251         amixer set "DVC Out Ramp" on
 252         aplay xxx.wav &
 253         amixer set "DVC Out"  80%  // Volume Down
 254         amixer set "DVC Out" 100%  // Volume Up
 255
 256 =============================================
 257 * SSIU (Serial Sound Interface Unit)
 258 =============================================
 259
 260 There is no DT settings for SSIU, because SSIU will be automatically
 261 selected via SSI.
 262 SSIU can avoid some under/over run error, because it has some buffer.
 263 But you can't use it if SSI was PIO mode.
 264 In DMA mode, you can select not to use SSIU by using "no-busif" on DT.
 265
 266         &ssi0 {
 267                 no-busif;
 268         };
 269
 270 =============================================
 271 * SSI (Serial Sound Interface)
 272 =============================================
 273
 274 **  PIO mode
 275
 276 You can use PIO mode which is for connection check by using.
 277 Note: The system will drop non-SSI modules in PIO mode
 278 even though if DT is selecting other modules.
 279
 280         &ssi0 {
 281                 pio-transfer
 282         };
 283
 284 ** DMA mode without SSIU
 285
 286 You can use DMA without SSIU.
 287 Note: under/over run, or noise are likely to occur
 288
 289         &ssi0 {
 290                 no-busif;
 291         };
 292
 293 ** PIN sharing
 294
 295 Each SSI can share WS pin. It is based on platform.
 296 This is example if SSI1 want to share WS pin with SSI0
 297
 298         &ssi1 {
 299                 shared-pin;
 300         };
 301
 302 ** Multi-SSI
 303
 304 You can use Multi-SSI.
 305 This is example of SSI0/SSI1/SSI2 (= for 6ch)
 306
 307         &rcar_sound {
 308                 ...
 309                 rcar_sound,dai {
 310                         dai0 {
 311                                 playback = <&ssi0 &ssi1 &ssi2 &src0 &dvc0>;
 312                         };
 313                 };
 314         };
 315
 316 ** TDM-SSI
 317
 318 You can use TDM with SSI.
 319 This is example of TDM 6ch.
 320 Driver can automatically switches TDM <-> stereo mode in this case.
 321
 322         rsnd_tdm: sound {
 323                 compatible = "simple-audio-card";
 324                 ...
 325                 simple-audio-card,cpu {
 326                         /* system can use TDM 6ch */
 327                         dai-tdm-slot-num = <6>;
 328                         sound-dai = <&rcar_sound>;
 329                 };
 330                 simple-audio-card,codec {
 331                         ...
 332                 };
 333         };
 334
 335
 336 =============================================
 337 Required properties:
 338 =============================================
 339
 340 - compatible                    : "renesas,rcar_sound-<soctype>", fallbacks
 341                                   "renesas,rcar_sound-gen1" if generation1, and
 342                                   "renesas,rcar_sound-gen2" if generation2 (or RZ/G1)
 343                                   "renesas,rcar_sound-gen3" if generation3
 344                                   Examples with soctypes are:
 345                                     - "renesas,rcar_sound-r8a7743" (RZ/G1M)
 346                                     - "renesas,rcar_sound-r8a7745" (RZ/G1E)
 347                                     - "renesas,rcar_sound-r8a7778" (R-Car M1A)
 348                                     - "renesas,rcar_sound-r8a7779" (R-Car H1)
 349                                     - "renesas,rcar_sound-r8a7790" (R-Car H2)
 350                                     - "renesas,rcar_sound-r8a7791" (R-Car M2-W)
 351                                     - "renesas,rcar_sound-r8a7793" (R-Car M2-N)
 352                                     - "renesas,rcar_sound-r8a7794" (R-Car E2)
 353                                     - "renesas,rcar_sound-r8a7795" (R-Car H3)
 354                                     - "renesas,rcar_sound-r8a7796" (R-Car M3-W)
 355                                     - "renesas,rcar_sound-r8a77965" (R-Car M3-N)
 356 - reg                           : Should contain the register physical address.
 357                                   required register is
 358                                    SRU/ADG/SSI      if generation1
 359                                    SRU/ADG/SSIU/SSI if generation2
 360 - rcar_sound,ssi                : Should contain SSI feature.
 361                                   The number of SSI subnode should be same as HW.
 362                                   see below for detail.
 363 - rcar_sound,src                : Should contain SRC feature.
 364                                   The number of SRC subnode should be same as HW.
 365                                   see below for detail.
 366 - rcar_sound,ctu                : Should contain CTU feature.
 367                                   The number of CTU subnode should be same as HW.
 368                                   see below for detail.
 369 - rcar_sound,mix                : Should contain MIX feature.
 370                                   The number of MIX subnode should be same as HW.
 371                                   see below for detail.
 372 - rcar_sound,dvc                : Should contain DVC feature.
 373                                   The number of DVC subnode should be same as HW.
 374                                   see below for detail.
 375 - rcar_sound,dai                : DAI contents.
 376                                   The number of DAI subnode should be same as HW.
 377                                   see below for detail.
 378 - #sound-dai-cells              : it must be 0 if your system is using single DAI
 379                                   it must be 1 if your system is using multi  DAI
 380 - clocks                        : References to SSI/SRC/MIX/CTU/DVC/AUDIO_CLK clocks.
 381 - clock-names                   : List of necessary clock names.
 382                                   "ssi-all", "ssi.X", "src.X", "mix.X", "ctu.X",
 383                                   "dvc.X", "clk_a", "clk_b", "clk_c", "clk_i"
 384
 385 Optional properties:
 386 - #clock-cells                  : it must be 0 if your system has audio_clkout
 387                                   it must be 1 if your system has audio_clkout0/1/2/3
 388 - clock-frequency               : for all audio_clkout0/1/2/3
 389 - clkout-lr-asynchronous        : boolean property. it indicates that audio_clkoutn
 390                                   is asynchronizes with lr-clock.
 391 - resets                        : References to SSI resets.
 392 - reset-names                   : List of valid reset names.
 393                                   "ssi-all", "ssi.X"
 394
 395 SSI subnode properties:
 396 - interrupts                    : Should contain SSI interrupt for PIO transfer
 397 - shared-pin                    : if shared clock pin
 398 - pio-transfer                  : use PIO transfer mode
 399 - no-busif                      : BUSIF is not ussed when [mem -> SSI] via DMA case
 400 - dma                           : Should contain Audio DMAC entry
 401 - dma-names                     : SSI  case "rx"  (=playback), "tx"  (=capture)
 402                                   SSIU case "rxu" (=playback), "txu" (=capture)
 403
 404 SRC subnode properties:
 405 - dma                           : Should contain Audio DMAC entry
 406 - dma-names                     : "rx" (=playback), "tx" (=capture)
 407
 408 DVC subnode properties:
 409 - dma                           : Should contain Audio DMAC entry
 410 - dma-names                     : "tx" (=playback/capture)
 411
 412 DAI subnode properties:
 413 - playback                      : list of playback modules
 414 - capture                       : list of capture  modules
 415
 416
 417 =============================================
 418 Example:
 419 =============================================
 420
 421 rcar_sound: sound@ec500000 {
 422         #sound-dai-cells = <1>;
 423         compatible = "renesas,rcar_sound-r8a7791", "renesas,rcar_sound-gen2";
 424         reg =   <0 0xec500000 0 0x1000>, /* SCU */
 425                 <0 0xec5a0000 0 0x100>,  /* ADG */
 426                 <0 0xec540000 0 0x1000>, /* SSIU */
 427                 <0 0xec541000 0 0x1280>, /* SSI */
 428                 <0 0xec740000 0 0x200>;  /* Audio DMAC peri peri*/
 429         reg-names = "scu", "adg", "ssiu", "ssi", "audmapp";
 430
 431         clocks = <&mstp10_clks R8A7790_CLK_SSI_ALL>,
 432                 <&mstp10_clks R8A7790_CLK_SSI9>, <&mstp10_clks R8A7790_CLK_SSI8>,
 433                 <&mstp10_clks R8A7790_CLK_SSI7>, <&mstp10_clks R8A7790_CLK_SSI6>,
 434                 <&mstp10_clks R8A7790_CLK_SSI5>, <&mstp10_clks R8A7790_CLK_SSI4>,
 435                 <&mstp10_clks R8A7790_CLK_SSI3>, <&mstp10_clks R8A7790_CLK_SSI2>,
 436                 <&mstp10_clks R8A7790_CLK_SSI1>, <&mstp10_clks R8A7790_CLK_SSI0>,
 437                 <&mstp10_clks R8A7790_CLK_SCU_SRC9>, <&mstp10_clks R8A7790_CLK_SCU_SRC8>,
 438                 <&mstp10_clks R8A7790_CLK_SCU_SRC7>, <&mstp10_clks R8A7790_CLK_SCU_SRC6>,
 439                 <&mstp10_clks R8A7790_CLK_SCU_SRC5>, <&mstp10_clks R8A7790_CLK_SCU_SRC4>,
 440                 <&mstp10_clks R8A7790_CLK_SCU_SRC3>, <&mstp10_clks R8A7790_CLK_SCU_SRC2>,
 441                 <&mstp10_clks R8A7790_CLK_SCU_SRC1>, <&mstp10_clks R8A7790_CLK_SCU_SRC0>,
 442                 <&mstp10_clks R8A7790_CLK_SCU_DVC0>, <&mstp10_clks R8A7790_CLK_SCU_DVC1>,
 443                 <&audio_clk_a>, <&audio_clk_b>, <&audio_clk_c>, <&m2_clk>;
 444         clock-names = "ssi-all",
 445                         "ssi.9", "ssi.8", "ssi.7", "ssi.6", "ssi.5",
 446                         "ssi.4", "ssi.3", "ssi.2", "ssi.1", "ssi.0",
 447                         "src.9", "src.8", "src.7", "src.6", "src.5",
 448                         "src.4", "src.3", "src.2", "src.1", "src.0",
 449                         "dvc.0", "dvc.1",
 450                         "clk_a", "clk_b", "clk_c", "clk_i";
 451
 452         rcar_sound,dvc {
 453                 dvc0: dvc-0 {
 454                         dmas = <&audma0 0xbc>;
 455                         dma-names = "tx";
 456                 };
 457                 dvc1: dvc-1 {
 458                         dmas = <&audma0 0xbe>;
 459                         dma-names = "tx";
 460                 };
 461         };
 462
 463         rcar_sound,mix {
 464                 mix0: mix-0 { };
 465                 mix1: mix-1 { };
 466         };
 467
 468         rcar_sound,ctu {
 469                 ctu00: ctu-0 { };
 470                 ctu01: ctu-1 { };
 471                 ctu02: ctu-2 { };
 472                 ctu03: ctu-3 { };
 473                 ctu10: ctu-4 { };
 474                 ctu11: ctu-5 { };
 475                 ctu12: ctu-6 { };
 476                 ctu13: ctu-7 { };
 477         };
 478
 479         rcar_sound,src {
 480                 src0: src-0 {
 481                         interrupts = <0 352 IRQ_TYPE_LEVEL_HIGH>;
 482                         dmas = <&audma0 0x85>, <&audma1 0x9a>;
 483                         dma-names = "rx", "tx";
 484                 };
 485                 src1: src-1 {
 486                         interrupts = <0 353 IRQ_TYPE_LEVEL_HIGH>;
 487                         dmas = <&audma0 0x87>, <&audma1 0x9c>;
 488                         dma-names = "rx", "tx";
 489                 };
 490                 src2: src-2 {
 491                         interrupts = <0 354 IRQ_TYPE_LEVEL_HIGH>;
 492                         dmas = <&audma0 0x89>, <&audma1 0x9e>;
 493                         dma-names = "rx", "tx";
 494                 };
 495                 src3: src-3 {
 496                         interrupts = <0 355 IRQ_TYPE_LEVEL_HIGH>;
 497                         dmas = <&audma0 0x8b>, <&audma1 0xa0>;
 498                         dma-names = "rx", "tx";
 499                 };
 500                 src4: src-4 {
 501                         interrupts = <0 356 IRQ_TYPE_LEVEL_HIGH>;
 502                         dmas = <&audma0 0x8d>, <&audma1 0xb0>;
 503                         dma-names = "rx", "tx";
 504                 };
 505                 src5: src-5 {
 506                         interrupts = <0 357 IRQ_TYPE_LEVEL_HIGH>;
 507                         dmas = <&audma0 0x8f>, <&audma1 0xb2>;
 508                         dma-names = "rx", "tx";
 509                 };
 510                 src6: src-6 {
 511                         interrupts = <0 358 IRQ_TYPE_LEVEL_HIGH>;
 512                         dmas = <&audma0 0x91>, <&audma1 0xb4>;
 513                         dma-names = "rx", "tx";
 514                 };
 515                 src7: src-7 {
 516                         interrupts = <0 359 IRQ_TYPE_LEVEL_HIGH>;
 517                         dmas = <&audma0 0x93>, <&audma1 0xb6>;
 518                         dma-names = "rx", "tx";
 519                 };
 520                 src8: src-8 {
 521                         interrupts = <0 360 IRQ_TYPE_LEVEL_HIGH>;
 522                         dmas = <&audma0 0x95>, <&audma1 0xb8>;
 523                         dma-names = "rx", "tx";
 524                 };
 525                 src9: src-9 {
 526                         interrupts = <0 361 IRQ_TYPE_LEVEL_HIGH>;
 527                         dmas = <&audma0 0x97>, <&audma1 0xba>;
 528                         dma-names = "rx", "tx";
 529                 };
 530         };
 531
 532         rcar_sound,ssi {
 533                 ssi0: ssi-0 {
 534                         interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>;
 535                         dmas = <&audma0 0x01>, <&audma1 0x02>, <&audma0 0x15>, <&audma1 0x16>;
 536                         dma-names = "rx", "tx", "rxu", "txu";
 537                 };
 538                 ssi1: ssi-1 {
 539                         interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>;
 540                         dmas = <&audma0 0x03>, <&audma1 0x04>, <&audma0 0x49>, <&audma1 0x4a>;
 541                         dma-names = "rx", "tx", "rxu", "txu";
 542                 };
 543                 ssi2: ssi-2 {
 544                         interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>;
 545                         dmas = <&audma0 0x05>, <&audma1 0x06>, <&audma0 0x63>, <&audma1 0x64>;
 546                         dma-names = "rx", "tx", "rxu", "txu";
 547                 };
 548                 ssi3: ssi-3 {
 549                         interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>;
 550                         dmas = <&audma0 0x07>, <&audma1 0x08>, <&audma0 0x6f>, <&audma1 0x70>;
 551                         dma-names = "rx", "tx", "rxu", "txu";
 552                 };
 553                 ssi4: ssi-4 {
 554                         interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>;
 555                         dmas = <&audma0 0x09>, <&audma1 0x0a>, <&audma0 0x71>, <&audma1 0x72>;
 556                         dma-names = "rx", "tx", "rxu", "txu";
 557                 };
 558                 ssi5: ssi-5 {
 559                         interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>;
 560                         dmas = <&audma0 0x0b>, <&audma1 0x0c>, <&audma0 0x73>, <&audma1 0x74>;
 561                         dma-names = "rx", "tx", "rxu", "txu";
 562                 };
 563                 ssi6: ssi-6 {
 564                         interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>;
 565                         dmas = <&audma0 0x0d>, <&audma1 0x0e>, <&audma0 0x75>, <&audma1 0x76>;
 566                         dma-names = "rx", "tx", "rxu", "txu";
 567                 };
 568                 ssi7: ssi-7 {
 569                         interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>;
 570                         dmas = <&audma0 0x0f>, <&audma1 0x10>, <&audma0 0x79>, <&audma1 0x7a>;
 571                         dma-names = "rx", "tx", "rxu", "txu";
 572                 };
 573                 ssi8: ssi-8 {
 574                         interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>;
 575                         dmas = <&audma0 0x11>, <&audma1 0x12>, <&audma0 0x7b>, <&audma1 0x7c>;
 576                         dma-names = "rx", "tx", "rxu", "txu";
 577                 };
 578                 ssi9: ssi-9 {
 579                         interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>;
 580                         dmas = <&audma0 0x13>, <&audma1 0x14>, <&audma0 0x7d>, <&audma1 0x7e>;
 581                         dma-names = "rx", "tx", "rxu", "txu";
 582                 };
 583         };
 584
 585         rcar_sound,dai {
 586                 dai0 {
 587                         playback = <&ssi5 &src5>;
 588                         capture  = <&ssi6>;
 589                 };
 590                 dai1 {
 591                         playback = <&ssi3>;
 592                 };
 593                 dai2 {
 594                         capture  = <&ssi4>;
 595                 };
 596                 dai3 {
 597                         playback = <&ssi7>;
 598                 };
 599                 dai4 {
 600                         capture  = <&ssi8>;
 601                 };
 602         };
 603 };
 604
 605 =============================================
 606 Example: simple sound card
 607 =============================================
 608
 609         rsnd_ak4643: sound {
 610                 compatible = "simple-audio-card";
 611
 612                 simple-audio-card,format = "left_j";
 613                 simple-audio-card,bitclock-master = <&sndcodec>;
 614                 simple-audio-card,frame-master = <&sndcodec>;
 615
 616                 sndcpu: simple-audio-card,cpu {
 617                         sound-dai = <&rcar_sound>;
 618                 };
 619
 620                 sndcodec: simple-audio-card,codec {
 621                         sound-dai = <&ak4643>;
 622                         clocks = <&audio_clock>;
 623                 };
 624         };
 625
 626 &rcar_sound {
 627         pinctrl-0 = <&sound_pins &sound_clk_pins>;
 628         pinctrl-names = "default";
 629
 630         /* Single DAI */
 631         #sound-dai-cells = <0>;
 632
 633
 634         rcar_sound,dai {
 635                 dai0 {
 636                         playback = <&ssi0 &src2 &dvc0>;
 637                         capture  = <&ssi1 &src3 &dvc1>;
 638                 };
 639         };
 640 };
 641
 642 &ssi1 {
 643         shared-pin;
 644 };
 645
 646 =============================================
 647 Example: simple sound card for TDM
 648 =============================================
 649
 650         rsnd_tdm: sound {
 651                 compatible = "simple-audio-card";
 652
 653                 simple-audio-card,format = "left_j";
 654                 simple-audio-card,bitclock-master = <&sndcodec>;
 655                 simple-audio-card,frame-master = <&sndcodec>;
 656
 657                 sndcpu: simple-audio-card,cpu {
 658                         sound-dai = <&rcar_sound>;
 659                         dai-tdm-slot-num = <6>;
 660                 };
 661
 662                 sndcodec: simple-audio-card,codec {
 663                         sound-dai = <&xxx>;
 664                 };
 665         };
 666
 667 =============================================
 668 Example: simple sound card for Multi channel
 669 =============================================
 670
 671 &rcar_sound {
 672         pinctrl-0 = <&sound_pins &sound_clk_pins>;
 673         pinctrl-names = "default";
 674
 675         /* Single DAI */
 676         #sound-dai-cells = <0>;
 677
 678
 679         rcar_sound,dai {
 680                 dai0 {
 681                         playback = <&ssi0 &ssi1 &ssi2 &src0 &dvc0>;
 682                 };
 683         };
 684 };