Documentation/devicetree/bindings/sound/marvell,mmp-sspa.yaml

   1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/sound/marvell,mmp-sspa.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Marvel SSPA Digital Audio Interface
   8
   9 maintainers:
  10   - Lubomir Rintel <lkundrak@v3.sk>
  11
  12 allOf:
  13   - $ref: dai-common.yaml#
  14
  15 properties:
  16   $nodename:
  17     pattern: "^audio-controller(@.*)?$"
  18
  19   compatible:
  20     const: marvell,mmp-sspa
  21
  22   reg:
  23     items:
  24       - description: RX block
  25       - description: TX block
  26
  27   interrupts:
  28     maxItems: 1
  29
  30   clocks:
  31     items:
  32       - description: Clock for the Audio block
  33       - description: I2S bit clock
  34
  35   clock-names:
  36     items:
  37       - const: audio
  38       - const: bitclk
  39
  40   power-domains:
  41     maxItems: 1
  42
  43   '#sound-dai-cells':
  44     const: 0
  45
  46   dmas:
  47     items:
  48       - description: TX DMA Channel
  49       - description: RX DMA Channel
  50
  51   dma-names:
  52     items:
  53       - const: tx
  54       - const: rx
  55
  56   port:
  57     $ref: audio-graph-port.yaml#
  58     unevaluatedProperties: false
  59
  60     properties:
  61       endpoint:
  62         type: object
  63         additionalProperties: true
  64
  65         properties:
  66           dai-format:
  67             const: i2s
  68
  69 required:
  70   - "#sound-dai-cells"
  71   - compatible
  72   - reg
  73   - interrupts
  74   - clocks
  75   - clock-names
  76   - dmas
  77   - dma-names
  78   - port
  79
  80 unevaluatedProperties: false
  81
  82 examples:
  83   - |
  84     #include <dt-bindings/clock/marvell,mmp2.h>
  85
  86     audio-controller@d42a0c00 {
  87       compatible = "marvell,mmp-sspa";
  88       reg = <0xd42a0c00 0x30>,
  89             <0xd42a0c80 0x30>;
  90       interrupts = <2>;
  91       clock-names = "audio", "bitclk";
  92       clocks = <&soc_clocks 127>,
  93                <&audio_clk 1>;
  94       #sound-dai-cells = <0>;
  95       dmas = <&adma0 0>, <&adma0 1>;
  96       dma-names = "tx", "rx";
  97       port {
  98         endpoint {
  99           remote-endpoint = <&rt5631_0>;
 100           dai-format = "i2s";
 101         };
 102       };
 103     };
 104
 105 ...