fsl,xcvr.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/fsl,xcvr.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: NXP Audio Transceiver (XCVR) Controller
    8 
    9 maintainers:
   10   - Viorel Suman <viorel.suman@nxp.com>
   11 
   12 description: |
   13   NXP XCVR (Audio Transceiver) is a on-chip functional module
   14   that allows CPU to receive and transmit digital audio via
   15   HDMI2.1 eARC, HDMI1.4 ARC and SPDIF.
   16 
   17 properties:
   18   $nodename:
   19     pattern: "^xcvr@.*"
   20 
   21   compatible:
   22     enum:
   23       - fsl,imx8mp-xcvr
   24 
   25   reg:
   26     items:
   27       - description: 20K RAM for code and data
   28       - description: registers space
   29       - description: RX FIFO address
   30       - description: TX FIFO address
   31 
   32   reg-names:
   33     items:
   34       - const: ram
   35       - const: regs
   36       - const: rxfifo
   37       - const: txfifo
   38 
   39   interrupts:
   40     maxItems: 1
   41 
   42   clocks:
   43     items:
   44       - description: Peripheral clock
   45       - description: PHY clock
   46       - description: SPBA clock
   47       - description: PLL clock
   48 
   49   clock-names:
   50     items:
   51       - const: ipg
   52       - const: phy
   53       - const: spba
   54       - const: pll_ipg
   55 
   56   dmas:
   57     items:
   58       - description: DMA controller phandle and request line for RX
   59       - description: DMA controller phandle and request line for TX
   60 
   61   dma-names:
   62     items:
   63       - const: rx
   64       - const: tx
   65 
   66   resets:
   67     maxItems: 1
   68 
   69 required:
   70   - compatible
   71   - reg
   72   - reg-names
   73   - interrupts
   74   - clocks
   75   - clock-names
   76   - dmas
   77   - dma-names
   78   - resets
   79 
   80 additionalProperties: false
   81 
   82 examples:
   83   - |
   84     #include <dt-bindings/interrupt-controller/arm-gic.h>
   85     #include <dt-bindings/clock/imx8mp-clock.h>
   86     #include <dt-bindings/reset/imx8mp-reset.h>
   87 
   88     xcvr: xcvr@30cc0000 {
   89            compatible = "fsl,imx8mp-xcvr";
   90            reg = <0x30cc0000 0x800>,
   91                  <0x30cc0800 0x400>,
   92                  <0x30cc0c00 0x080>,
   93                  <0x30cc0e00 0x080>;
   94            reg-names = "ram", "regs", "rxfifo", "txfifo";
   95            interrupts = <0x0 128 IRQ_TYPE_LEVEL_HIGH>;
   96            clocks = <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_IPG>,
   97                     <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_PHY>,
   98                     <&audiomix_clk IMX8MP_CLK_AUDIOMIX_SPBA2_ROOT>,
   99                     <&audiomix_clk IMX8MP_CLK_AUDIOMIX_AUDPLL_ROOT>;
  100            clock-names = "ipg", "phy", "spba", "pll_ipg";
  101            dmas = <&sdma2 30 2 0>, <&sdma2 31 2 0>;
  102            dma-names = "rx", "tx";
  103            resets = <&audiomix_reset 0>;
  104     };

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sys/contrib/device-tree/Bindings/sound/fsl,xcvr.yaml