rockchip-spdif.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/sound/rockchip-spdif.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Rockchip SPDIF transceiver
    8 
    9 description:
   10   The S/PDIF audio block is a stereo transceiver that allows the
   11   processor to receive and transmit digital audio via a coaxial or
   12   fibre cable.
   13 
   14 maintainers:
   15   - Heiko Stuebner <heiko@sntech.de>
   16 
   17 properties:
   18   compatible:
   19     oneOf:
   20       - const: rockchip,rk3066-spdif
   21       - const: rockchip,rk3228-spdif
   22       - const: rockchip,rk3328-spdif
   23       - const: rockchip,rk3366-spdif
   24       - const: rockchip,rk3368-spdif
   25       - const: rockchip,rk3399-spdif
   26       - const: rockchip,rk3568-spdif
   27       - items:
   28           - enum:
   29               - rockchip,rk3188-spdif
   30               - rockchip,rk3288-spdif
   31               - rockchip,rk3308-spdif
   32           - const: rockchip,rk3066-spdif
   33 
   34   reg:
   35     maxItems: 1
   36 
   37   interrupts:
   38     maxItems: 1
   39 
   40   clocks:
   41     items:
   42       - description: clock for SPDIF bus
   43       - description: clock for SPDIF controller
   44 
   45   clock-names:
   46     items:
   47       - const: mclk
   48       - const: hclk
   49 
   50   dmas:
   51     maxItems: 1
   52 
   53   dma-names:
   54     const: tx
   55 
   56   power-domains:
   57     maxItems: 1
   58 
   59   rockchip,grf:
   60     $ref: /schemas/types.yaml#/definitions/phandle
   61     description:
   62       The phandle of the syscon node for the GRF register.
   63       Required property on RK3288.
   64 
   65   "#sound-dai-cells":
   66     const: 0
   67 
   68 required:
   69   - compatible
   70   - reg
   71   - interrupts
   72   - clocks
   73   - clock-names
   74   - dmas
   75   - dma-names
   76   - "#sound-dai-cells"
   77 
   78 if:
   79   properties:
   80     compatible:
   81       contains:
   82         const: rockchip,rk3288-spdif
   83 
   84 then:
   85   required:
   86     - rockchip,grf
   87 
   88 additionalProperties: false
   89 
   90 examples:
   91   - |
   92     #include <dt-bindings/clock/rk3188-cru.h>
   93     #include <dt-bindings/interrupt-controller/arm-gic.h>
   94     spdif: spdif@1011e000 {
   95       compatible = "rockchip,rk3188-spdif", "rockchip,rk3066-spdif";
   96       reg = <0x1011e000 0x2000>;
   97       interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
   98       clocks = <&cru SCLK_SPDIF>, <&cru HCLK_SPDIF>;
   99       clock-names = "mclk", "hclk";
  100       dmas = <&dmac1_s 8>;
  101       dma-names = "tx";
  102       #sound-dai-cells = <0>;
  103     };

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sys/contrib/device-tree/Bindings/sound/rockchip-spdif.yaml