Documentation/devicetree/bindings/dma/renesas,usb-dmac.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/dma/renesas,usb-dmac.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Renesas USB DMA Controller
   8
   9 maintainers:
  10   - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
  11
  12 allOf:
  13   - $ref: "dma-controller.yaml#"
  14
  15 properties:
  16   compatible:
  17     items:
  18       - enum:
  19           - renesas,r8a7742-usb-dmac  # RZ/G1H
  20           - renesas,r8a7743-usb-dmac  # RZ/G1M
  21           - renesas,r8a7744-usb-dmac  # RZ/G1N
  22           - renesas,r8a7745-usb-dmac  # RZ/G1E
  23           - renesas,r8a77470-usb-dmac # RZ/G1C
  24           - renesas,r8a774a1-usb-dmac # RZ/G2M
  25           - renesas,r8a774b1-usb-dmac # RZ/G2N
  26           - renesas,r8a774c0-usb-dmac # RZ/G2E
  27           - renesas,r8a774e1-usb-dmac # RZ/G2H
  28           - renesas,r8a7790-usb-dmac  # R-Car H2
  29           - renesas,r8a7791-usb-dmac  # R-Car M2-W
  30           - renesas,r8a7793-usb-dmac  # R-Car M2-N
  31           - renesas,r8a7794-usb-dmac  # R-Car E2
  32           - renesas,r8a7795-usb-dmac  # R-Car H3
  33           - renesas,r8a7796-usb-dmac  # R-Car M3-W
  34           - renesas,r8a77961-usb-dmac # R-Car M3-W+
  35           - renesas,r8a77965-usb-dmac # R-Car M3-N
  36           - renesas,r8a77990-usb-dmac # R-Car E3
  37           - renesas,r8a77995-usb-dmac # R-Car D3
  38       - const: renesas,usb-dmac
  39
  40   reg:
  41     maxItems: 1
  42
  43   interrupts:
  44     minItems: 2
  45     maxItems: 2
  46
  47   interrupt-names:
  48     items:
  49       - pattern: ch0
  50       - pattern: ch1
  51
  52   clocks:
  53     maxItems: 1
  54
  55   '#dma-cells':
  56     const: 1
  57     description:
  58       The cell specifies the channel number of the DMAC port connected to
  59       the DMA client.
  60
  61   dma-channels:
  62     const: 2
  63
  64   iommus:
  65     minItems: 2
  66     maxItems: 2
  67
  68   power-domains:
  69     maxItems: 1
  70
  71   resets:
  72     maxItems: 1
  73
  74 required:
  75   - compatible
  76   - reg
  77   - interrupts
  78   - interrupt-names
  79   - clocks
  80   - '#dma-cells'
  81   - dma-channels
  82   - power-domains
  83   - resets
  84
  85 additionalProperties: false
  86
  87 examples:
  88   - |
  89     #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
  90     #include <dt-bindings/interrupt-controller/arm-gic.h>
  91     #include <dt-bindings/power/r8a7790-sysc.h>
  92
  93     usb_dmac0: dma-controller@e65a0000 {
  94         compatible = "renesas,r8a7790-usb-dmac", "renesas,usb-dmac";
  95         reg = <0xe65a0000 0x100>;
  96         interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
  97                      <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
  98         interrupt-names = "ch0", "ch1";
  99         clocks = <&cpg CPG_MOD 330>;
 100         power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
 101         resets = <&cpg 330>;
 102         #dma-cells = <1>;
 103         dma-channels = <2>;
 104     };