nvidia,tegra210-admaif.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/sound/nvidia,tegra210-admaif.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Tegra210 ADMAIF Device Tree Bindings
    8 
    9 description: |
   10   ADMAIF is the interface between ADMA and AHUB. Each ADMA channel
   11   that sends/receives data to/from AHUB must interface through an
   12   ADMAIF channel. ADMA channel sending data to AHUB pairs with ADMAIF
   13   Tx channel and ADMA channel receiving data from AHUB pairs with
   14   ADMAIF Rx channel.
   15 
   16 maintainers:
   17   - Jon Hunter <jonathanh@nvidia.com>
   18   - Sameer Pujar <spujar@nvidia.com>
   19 
   20 properties:
   21   $nodename:
   22     pattern: "^admaif@[0-9a-f]*$"
   23 
   24   compatible:
   25     oneOf:
   26       - enum:
   27           - nvidia,tegra210-admaif
   28           - nvidia,tegra186-admaif
   29       - items:
   30           - enum:
   31               - nvidia,tegra234-admaif
   32               - nvidia,tegra194-admaif
   33           - const: nvidia,tegra186-admaif
   34 
   35   reg:
   36     maxItems: 1
   37 
   38   dmas: true
   39 
   40   dma-names: true
   41 
   42   ports:
   43     $ref: /schemas/graph.yaml#/properties/ports
   44     description: |
   45       Contains list of ACIF (Audio CIF) port nodes for ADMAIF channels.
   46       The number of port nodes depends on the number of ADMAIF channels
   47       that SoC may have. These are interfaced with respective ACIF ports
   48       in AHUB (Audio Hub). Each port is capable of data transfers in
   49       both directions.
   50 
   51     patternProperties:
   52       '^port@[0-9]':
   53         $ref: audio-graph-port.yaml#
   54         unevaluatedProperties: false
   55 
   56 if:
   57   properties:
   58     compatible:
   59       contains:
   60         const: nvidia,tegra210-admaif
   61 
   62 then:
   63   properties:
   64     dmas:
   65       description:
   66         DMA channel specifiers, equally divided for Tx and Rx.
   67       minItems: 1
   68       maxItems: 20
   69     dma-names:
   70       items:
   71         pattern: "^[rt]x(10|[1-9])$"
   72       description:
   73         Should be "rx1", "rx2" ... "rx10" for DMA Rx channel
   74         Should be "tx1", "tx2" ... "tx10" for DMA Tx channel
   75       minItems: 1
   76       maxItems: 20
   77 
   78 else:
   79   properties:
   80     dmas:
   81       description:
   82         DMA channel specifiers, equally divided for Tx and Rx.
   83       minItems: 1
   84       maxItems: 40
   85     dma-names:
   86       items:
   87         pattern: "^[rt]x(1[0-9]|[1-9]|20)$"
   88       description:
   89         Should be "rx1", "rx2" ... "rx20" for DMA Rx channel
   90         Should be "tx1", "tx2" ... "tx20" for DMA Tx channel
   91       minItems: 1
   92       maxItems: 40
   93 
   94 required:
   95   - compatible
   96   - reg
   97   - dmas
   98   - dma-names
   99 
  100 additionalProperties: false
  101 
  102 examples:
  103   - |
  104     admaif@702d0000 {
  105         compatible = "nvidia,tegra210-admaif";
  106         reg = <0x702d0000 0x800>;
  107         dmas = <&adma 1>,  <&adma 1>,
  108                <&adma 2>,  <&adma 2>,
  109                <&adma 3>,  <&adma 3>,
  110                <&adma 4>,  <&adma 4>,
  111                <&adma 5>,  <&adma 5>,
  112                <&adma 6>,  <&adma 6>,
  113                <&adma 7>,  <&adma 7>,
  114                <&adma 8>,  <&adma 8>,
  115                <&adma 9>,  <&adma 9>,
  116                <&adma 10>, <&adma 10>;
  117         dma-names = "rx1",  "tx1",
  118                     "rx2",  "tx2",
  119                     "rx3",  "tx3",
  120                     "rx4",  "tx4",
  121                     "rx5",  "tx5",
  122                     "rx6",  "tx6",
  123                     "rx7",  "tx7",
  124                     "rx8",  "tx8",
  125                     "rx9",  "tx9",
  126                     "rx10", "tx10";
  127     };
  128 
  129 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/sound/nvidia,tegra210-admaif.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/nvidia,tegra210-admaif.yaml