nvidia,tegra186-dspk.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-dspk.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Tegra186 DSPK Controller Device Tree Bindings
    8 
    9 description: |
   10   The Digital Speaker Controller (DSPK) can be viewed as a Pulse
   11   Density Modulation (PDM) transmitter that up-samples the input to
   12   the desired sampling rate by interpolation and then converts the
   13   over sampled Pulse Code Modulation (PCM) input to the desired 1-bit
   14   output via Delta Sigma Modulation (DSM).
   15 
   16 maintainers:
   17   - Jon Hunter <jonathanh@nvidia.com>
   18   - Sameer Pujar <spujar@nvidia.com>
   19 
   20 allOf:
   21   - $ref: name-prefix.yaml#
   22 
   23 properties:
   24   $nodename:
   25     pattern: "^dspk@[0-9a-f]*$"
   26 
   27   compatible:
   28     oneOf:
   29       - const: nvidia,tegra186-dspk
   30       - items:
   31           - enum:
   32               - nvidia,tegra234-dspk
   33               - nvidia,tegra194-dspk
   34           - const: nvidia,tegra186-dspk
   35 
   36   reg:
   37     maxItems: 1
   38 
   39   clocks:
   40     maxItems: 1
   41 
   42   clock-names:
   43     const: dspk
   44 
   45   assigned-clocks:
   46     maxItems: 1
   47 
   48   assigned-clock-parents:
   49     maxItems: 1
   50 
   51   assigned-clock-rates:
   52     maxItems: 1
   53 
   54   sound-name-prefix:
   55     pattern: "^DSPK[1-9]$"
   56 
   57   ports:
   58     $ref: /schemas/graph.yaml#/properties/ports
   59     properties:
   60       port@0:
   61         $ref: audio-graph-port.yaml#
   62         unevaluatedProperties: false
   63         description: |
   64           DSPK ACIF (Audio Client Interface) port connected to the
   65           corresponding AHUB (Audio Hub) ACIF port.
   66 
   67       port@1:
   68         $ref: audio-graph-port.yaml#
   69         unevaluatedProperties: false
   70         description: |
   71           DSPK DAP (Digital Audio Port) interface which can be connected
   72           to external audio codec for playback.
   73 
   74 required:
   75   - compatible
   76   - reg
   77   - clocks
   78   - clock-names
   79   - assigned-clocks
   80   - assigned-clock-parents
   81   - sound-name-prefix
   82 
   83 additionalProperties: false
   84 
   85 examples:
   86   - |
   87     #include<dt-bindings/clock/tegra186-clock.h>
   88 
   89     dspk@2905000 {
   90         compatible = "nvidia,tegra186-dspk";
   91         reg = <0x2905000 0x100>;
   92         clocks = <&bpmp TEGRA186_CLK_DSPK1>;
   93         clock-names = "dspk";
   94         assigned-clocks = <&bpmp TEGRA186_CLK_DSPK1>;
   95         assigned-clock-parents = <&bpmp TEGRA186_CLK_PLL_A_OUT0>;
   96         assigned-clock-rates = <12288000>;
   97         sound-name-prefix = "DSPK1";
   98     };
   99 
  100 ...

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

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