Documentation/devicetree/bindings/sound/rockchip-spdif.yaml

   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,rk3128-spdif
  30               - rockchip,rk3188-spdif
  31               - rockchip,rk3288-spdif
  32               - rockchip,rk3308-spdif
  33           - const: rockchip,rk3066-spdif
  34
  35   reg:
  36     maxItems: 1
  37
  38   interrupts:
  39     maxItems: 1
  40
  41   clocks:
  42     items:
  43       - description: clock for SPDIF bus
  44       - description: clock for SPDIF controller
  45
  46   clock-names:
  47     items:
  48       - const: mclk
  49       - const: hclk
  50
  51   dmas:
  52     maxItems: 1
  53
  54   dma-names:
  55     const: tx
  56
  57   power-domains:
  58     maxItems: 1
  59
  60   rockchip,grf:
  61     $ref: /schemas/types.yaml#/definitions/phandle
  62     description:
  63       The phandle of the syscon node for the GRF register.
  64       Required property on RK3288.
  65
  66   "#sound-dai-cells":
  67     const: 0
  68
  69 required:
  70   - compatible
  71   - reg
  72   - interrupts
  73   - clocks
  74   - clock-names
  75   - dmas
  76   - dma-names
  77   - "#sound-dai-cells"
  78
  79 allOf:
  80   - $ref: dai-common.yaml#
  81   - if:
  82       properties:
  83         compatible:
  84           contains:
  85             const: rockchip,rk3288-spdif
  86     then:
  87       required:
  88         - rockchip,grf
  89
  90 unevaluatedProperties: false
  91
  92 examples:
  93   - |
  94     #include <dt-bindings/clock/rk3188-cru.h>
  95     #include <dt-bindings/interrupt-controller/arm-gic.h>
  96     spdif: spdif@1011e000 {
  97       compatible = "rockchip,rk3188-spdif", "rockchip,rk3066-spdif";
  98       reg = <0x1011e000 0x2000>;
  99       interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
 100       clocks = <&cru SCLK_SPDIF>, <&cru HCLK_SPDIF>;
 101       clock-names = "mclk", "hclk";
 102       dmas = <&dmac1_s 8>;
 103       dma-names = "tx";
 104       #sound-dai-cells = <0>;
 105     };