rockchip-i2s.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-i2s.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Rockchip I2S controller
    8 
    9 description:
   10   The I2S bus (Inter-IC sound bus) is a serial link for digital
   11   audio data transfer between devices in the system.
   12 
   13 maintainers:
   14   - Heiko Stuebner <heiko@sntech.de>
   15 
   16 properties:
   17   compatible:
   18     oneOf:
   19       - const: rockchip,rk3066-i2s
   20       - items:
   21           - enum:
   22               - rockchip,px30-i2s
   23               - rockchip,rk1808-i2s
   24               - rockchip,rk3036-i2s
   25               - rockchip,rk3128-i2s
   26               - rockchip,rk3188-i2s
   27               - rockchip,rk3228-i2s
   28               - rockchip,rk3288-i2s
   29               - rockchip,rk3308-i2s
   30               - rockchip,rk3328-i2s
   31               - rockchip,rk3366-i2s
   32               - rockchip,rk3368-i2s
   33               - rockchip,rk3399-i2s
   34               - rockchip,rv1126-i2s
   35           - const: rockchip,rk3066-i2s
   36 
   37   reg:
   38     maxItems: 1
   39 
   40   interrupts:
   41     maxItems: 1
   42 
   43   clocks:
   44     items:
   45       - description: clock for I2S controller
   46       - description: clock for I2S BUS
   47 
   48   clock-names:
   49     items:
   50       - const: i2s_clk
   51       - const: i2s_hclk
   52 
   53   dmas:
   54     minItems: 1
   55     maxItems: 2
   56 
   57   dma-names:
   58     oneOf:
   59       - const: rx
   60       - items:
   61           - const: tx
   62           - const: rx
   63 
   64   pinctrl-names:
   65     oneOf:
   66       - const: default
   67       - items:
   68           - const: bclk_on
   69           - const: bclk_off
   70 
   71   power-domains:
   72     maxItems: 1
   73 
   74   reset-names:
   75     items:
   76       - const: reset-m
   77       - const: reset-h
   78 
   79   resets:
   80     maxItems: 2
   81 
   82   rockchip,capture-channels:
   83     $ref: /schemas/types.yaml#/definitions/uint32
   84     default: 2
   85     description:
   86       Max capture channels, if not set, 2 channels default.
   87 
   88   rockchip,playback-channels:
   89     $ref: /schemas/types.yaml#/definitions/uint32
   90     default: 8
   91     description:
   92       Max playback channels, if not set, 8 channels default.
   93 
   94   rockchip,grf:
   95     $ref: /schemas/types.yaml#/definitions/phandle
   96     description:
   97       The phandle of the syscon node for the GRF register.
   98       Required property for controllers which support multi channel
   99       playback/capture.
  100 
  101   "#sound-dai-cells":
  102     const: 0
  103 
  104 required:
  105   - compatible
  106   - reg
  107   - interrupts
  108   - clocks
  109   - clock-names
  110   - dmas
  111   - dma-names
  112   - "#sound-dai-cells"
  113 
  114 additionalProperties: false
  115 
  116 examples:
  117   - |
  118     #include <dt-bindings/clock/rk3288-cru.h>
  119     #include <dt-bindings/interrupt-controller/arm-gic.h>
  120     #include <dt-bindings/interrupt-controller/irq.h>
  121     i2s@ff890000 {
  122       compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s";
  123       reg = <0xff890000 0x10000>;
  124       interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
  125       clocks = <&cru SCLK_I2S0>, <&cru HCLK_I2S0>;
  126       clock-names = "i2s_clk", "i2s_hclk";
  127       dmas = <&pdma1 0>, <&pdma1 1>;
  128       dma-names = "tx", "rx";
  129       rockchip,capture-channels = <2>;
  130       rockchip,playback-channels = <8>;
  131       #sound-dai-cells = <0>;
  132     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/sound/rockchip-i2s.yaml

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sys/contrib/device-tree/Bindings/sound/rockchip-i2s.yaml