linux/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
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   1Texas Instruments McASP controller
   2
   3Required properties:
   4- compatible :
   5        "ti,dm646x-mcasp-audio" : for DM646x platforms
   6        "ti,da830-mcasp-audio"  : for both DA830 & DA850 platforms
   7        "ti,omap2-mcasp-audio"  : for OMAP2 platforms (TI81xx, AM33xx)
   8
   9- reg : Should contain McASP registers offset and length
  10- interrupts : Interrupt number for McASP
  11- op-mode : I2S/DIT ops mode.
  12- tdm-slots : Slots for TDM operation.
  13- num-serializer : Serializers used by McASP.
  14- serial-dir : A list of serializer pin mode. The list number should be equal
  15                to "num-serializer" parameter. Each entry is a number indication
  16                serializer pin direction. (0 - INACTIVE, 1 - TX, 2 - RX)
  17
  18
  19Optional properties:
  20
  21- ti,hwmods : Must be "mcasp<n>", n is controller instance starting 0
  22- tx-num-evt : FIFO levels.
  23- rx-num-evt : FIFO levels.
  24- sram-size-playback : size of sram to be allocated during playback
  25- sram-size-capture  : size of sram to be allocated during capture
  26
  27Example:
  28
  29mcasp0: mcasp0@1d00000 {
  30        compatible = "ti,da830-mcasp-audio";
  31        #address-cells = <1>;
  32        #size-cells = <0>;
  33        reg = <0x100000 0x3000>;
  34        interrupts = <82 83>;
  35        op-mode = <0>;          /* MCASP_IIS_MODE */
  36        tdm-slots = <2>;
  37        num-serializer = <16>;
  38        serial-dir = <
  39                        0 0 0 0 /* 0: INACTIVE, 1: TX, 2: RX */
  40                        0 0 0 0
  41                        0 0 0 1
  42                        2 0 0 0 >;
  43        tx-num-evt = <1>;
  44        rx-num-evt = <1>;
  45};
  46