nvidia,tegra-audio-graph-card.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,tegra-audio-graph-card.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Audio Graph based Tegra sound card driver
    8 
    9 description: |
   10   This is based on generic audio graph card driver along with additional
   11   customizations for Tegra platforms. It uses the same bindings with
   12   additional standard clock DT bindings required for Tegra.
   13 
   14 maintainers:
   15   - Jon Hunter <jonathanh@nvidia.com>
   16   - Sameer Pujar <spujar@nvidia.com>
   17 
   18 allOf:
   19   - $ref: audio-graph.yaml#
   20 
   21 properties:
   22   compatible:
   23     enum:
   24       - nvidia,tegra210-audio-graph-card
   25       - nvidia,tegra186-audio-graph-card
   26 
   27   clocks:
   28     minItems: 2
   29 
   30   clock-names:
   31     items:
   32       - const: pll_a
   33       - const: plla_out0
   34 
   35   assigned-clocks:
   36     minItems: 1
   37     maxItems: 3
   38 
   39   assigned-clock-parents:
   40     minItems: 1
   41     maxItems: 3
   42 
   43   assigned-clock-rates:
   44     minItems: 1
   45     maxItems: 3
   46 
   47   interconnects:
   48     items:
   49       - description: APE read memory client
   50       - description: APE write memory client
   51 
   52   interconnect-names:
   53     items:
   54       - const: dma-mem # read
   55       - const: write
   56 
   57   iommus:
   58     maxItems: 1
   59 
   60 required:
   61   - clocks
   62   - clock-names
   63   - assigned-clocks
   64   - assigned-clock-parents
   65 
   66 unevaluatedProperties: false
   67 
   68 examples:
   69   - |
   70     #include<dt-bindings/clock/tegra210-car.h>
   71 
   72     tegra_sound {
   73         compatible = "nvidia,tegra210-audio-graph-card";
   74 
   75         clocks = <&tegra_car TEGRA210_CLK_PLL_A>,
   76                  <&tegra_car TEGRA210_CLK_PLL_A_OUT0>;
   77         clock-names = "pll_a", "plla_out0";
   78 
   79         assigned-clocks = <&tegra_car TEGRA210_CLK_PLL_A>,
   80                           <&tegra_car TEGRA210_CLK_PLL_A_OUT0>,
   81                           <&tegra_car TEGRA210_CLK_EXTERN1>;
   82         assigned-clock-parents = <0>, <0>, <&tegra_car TEGRA210_CLK_PLL_A_OUT0>;
   83         assigned-clock-rates = <368640000>, <49152000>, <12288000>;
   84 
   85         dais = /* FE */
   86                <&admaif1_port>,
   87                /* Router */
   88                <&xbar_i2s1_port>,
   89                /* I/O DAP Ports */
   90                <&i2s1_port>;
   91 
   92         label = "jetson-tx1-ape";
   93     };
   94 
   95     // The ports are defined for AHUB and its child devices.
   96     ahub@702d0800 {
   97         compatible = "nvidia,tegra210-ahub";
   98         reg = <0x702d0800 0x800>;
   99         clocks = <&tegra_car TEGRA210_CLK_D_AUDIO>;
  100         clock-names = "ahub";
  101         assigned-clocks = <&tegra_car TEGRA210_CLK_D_AUDIO>;
  102         assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_A_OUT0>;
  103         #address-cells = <1>;
  104         #size-cells = <1>;
  105         ranges = <0x702d0000 0x702d0000 0x0000e400>;
  106 
  107         ports {
  108             #address-cells = <1>;
  109             #size-cells = <0>;
  110 
  111             port@0 {
  112                 reg = <0x0>;
  113                 xbar_admaif1_ep: endpoint {
  114                     remote-endpoint = <&admaif1_ep>;
  115                 };
  116             };
  117 
  118             // ...
  119 
  120             xbar_i2s1_port: port@a {
  121                 reg = <0xa>;
  122                 xbar_i2s1_ep: endpoint {
  123                     remote-endpoint = <&i2s1_cif_ep>;
  124                 };
  125             };
  126         };
  127 
  128         admaif@702d0000 {
  129             compatible = "nvidia,tegra210-admaif";
  130             reg = <0x702d0000 0x800>;
  131             dmas = <&adma 1>,  <&adma 1>,
  132                    <&adma 2>,  <&adma 2>,
  133                    <&adma 3>,  <&adma 3>,
  134                    <&adma 4>,  <&adma 4>,
  135                    <&adma 5>,  <&adma 5>,
  136                    <&adma 6>,  <&adma 6>,
  137                    <&adma 7>,  <&adma 7>,
  138                    <&adma 8>,  <&adma 8>,
  139                    <&adma 9>,  <&adma 9>,
  140                    <&adma 10>, <&adma 10>;
  141             dma-names = "rx1",  "tx1",
  142                         "rx2",  "tx2",
  143                         "rx3",  "tx3",
  144                         "rx4",  "tx4",
  145                         "rx5",  "tx5",
  146                         "rx6",  "tx6",
  147                         "rx7",  "tx7",
  148                         "rx8",  "tx8",
  149                         "rx9",  "tx9",
  150                         "rx10", "tx10";
  151 
  152             ports {
  153                 #address-cells = <1>;
  154                 #size-cells = <0>;
  155 
  156                 admaif1_port: port@0 {
  157                     reg = <0x0>;
  158                     admaif1_ep: endpoint {
  159                         remote-endpoint = <&xbar_admaif1_ep>;
  160                     };
  161                 };
  162 
  163                 // More ADMAIF ports to follow
  164             };
  165         };
  166 
  167         i2s@702d1000 {
  168             compatible = "nvidia,tegra210-i2s";
  169             clocks = <&tegra_car TEGRA210_CLK_I2S0>;
  170             clock-names = "i2s";
  171             assigned-clocks = <&tegra_car TEGRA210_CLK_I2S0>;
  172             assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_A_OUT0>;
  173             assigned-clock-rates = <1536000>;
  174             reg = <0x702d1000 0x100>;
  175 
  176             ports {
  177                 #address-cells = <1>;
  178                 #size-cells = <0>;
  179 
  180                 port@0 {
  181                     reg = <0x0>;
  182 
  183                     i2s1_cif_ep: endpoint {
  184                         remote-endpoint = <&xbar_i2s1_ep>;
  185                     };
  186                 };
  187 
  188                 i2s1_port: port@1 {
  189                     reg = <0x1>;
  190 
  191                     i2s1_dap: endpoint {
  192                         dai-format = "i2s";
  193                     };
  194                 };
  195             };
  196         };
  197     };
  198 
  199 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/sound/nvidia,tegra-audio-graph-card.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/nvidia,tegra-audio-graph-card.yaml