nvidia,tegra186-asrc.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,tegra186-asrc.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Tegra186 ASRC Device Tree Bindings
    8 
    9 description: |
   10   Asynchronous Sample Rate Converter (ASRC) converts the sampling frequency
   11   of the input signal from one frequency to another. It can handle over a
   12   wide range of sample rate ratios (freq_in/freq_out) from 1:24 to 24:1.
   13   ASRC has two modes of operation. One where ratio can be programmed in SW
   14   and the other where it gets the information from ratio estimator module.
   15 
   16   It supports  sample rate conversions in the range of 8 to 192 kHz and
   17   supports 6 streams upto 12 total channels. The input data size can be
   18   16, 24 and 32 bits.
   19 
   20 maintainers:
   21   - Jon Hunter <jonathanh@nvidia.com>
   22   - Mohan Kumar <mkumard@nvidia.com>
   23   - Sameer Pujar <spujar@nvidia.com>
   24 
   25 allOf:
   26   - $ref: name-prefix.yaml#
   27 
   28 properties:
   29   $nodename:
   30     pattern: "^asrc@[0-9a-f]*$"
   31 
   32   compatible:
   33     oneOf:
   34       - const: nvidia,tegra186-asrc
   35       - items:
   36           - enum:
   37               - nvidia,tegra234-asrc
   38               - nvidia,tegra194-asrc
   39           - const: nvidia,tegra186-asrc
   40 
   41   reg:
   42     maxItems: 1
   43 
   44   sound-name-prefix:
   45     pattern: "^ASRC[1-9]$"
   46 
   47   ports:
   48     $ref: /schemas/graph.yaml#/properties/ports
   49     description: |
   50       ASRC has seven input ports and six output ports. Accordingly ACIF
   51       (Audio Client Interfaces) port nodes are defined to represent the
   52       ASRC inputs (port 0 to 6) and outputs (port 7 to 12). These are
   53       connected to corresponding ports on AHUB (Audio Hub). Additional
   54       input (port 6) is for receiving ratio information from estimator.
   55 
   56     patternProperties:
   57       '^port@[0-6]':
   58         $ref: audio-graph-port.yaml#
   59         unevaluatedProperties: false
   60         description: ASRC ACIF input ports
   61       '^port@[7-9]|1[1-2]':
   62         $ref: audio-graph-port.yaml#
   63         unevaluatedProperties: false
   64         description: ASRC ACIF output ports
   65 
   66 required:
   67   - compatible
   68   - reg
   69 
   70 additionalProperties: false
   71 
   72 examples:
   73   - |
   74 
   75     asrc@2910000 {
   76         compatible = "nvidia,tegra186-asrc";
   77         reg = <0x2910000 0x2000>;
   78         sound-name-prefix = "ASRC1";
   79     };
   80 
   81 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/sound/nvidia,tegra186-asrc.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/nvidia,tegra186-asrc.yaml