Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/bus/allwinner,sun50i-a64-de2.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Allwinner A64 Display Engine Bus Device Tree Bindings
   8
   9 maintainers:
  10   - Chen-Yu Tsai <wens@csie.org>
  11   - Maxime Ripard <mripard@kernel.org>
  12
  13 properties:
  14   $nodename:
  15     pattern: "^bus(@[0-9a-f]+)?$"
  16
  17   "#address-cells":
  18     const: 1
  19
  20   "#size-cells":
  21     const: 1
  22
  23   compatible:
  24     oneOf:
  25       - const: allwinner,sun50i-a64-de2
  26       - items:
  27           - const: allwinner,sun50i-h6-de3
  28           - const: allwinner,sun50i-a64-de2
  29
  30   reg:
  31     maxItems: 1
  32
  33   allwinner,sram:
  34     allOf:
  35       - $ref: /schemas/types.yaml#definitions/phandle-array
  36       - maxItems: 1
  37     description:
  38       The SRAM that needs to be claimed to access the display engine
  39       bus.
  40
  41   ranges: true
  42
  43 patternProperties:
  44   # All other properties should be child nodes with unit-address and 'reg'
  45   "^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}@[0-9a-fA-F]+$":
  46     type: object
  47     properties:
  48       reg:
  49         maxItems: 1
  50
  51     required:
  52       - reg
  53
  54 required:
  55   - compatible
  56   - reg
  57   - "#address-cells"
  58   - "#size-cells"
  59   - ranges
  60   - allwinner,sram
  61
  62 additionalProperties: false
  63
  64 examples:
  65   - |
  66     bus@1000000 {
  67         compatible = "allwinner,sun50i-a64-de2";
  68         reg = <0x1000000 0x400000>;
  69         allwinner,sram = <&de2_sram 1>;
  70         #address-cells = <1>;
  71         #size-cells = <1>;
  72         ranges = <0 0x1000000 0x400000>;
  73
  74         display_clocks: clock@0 {
  75             compatible = "allwinner,sun50i-a64-de2-clk";
  76             reg = <0x0 0x100000>;
  77             clocks = <&ccu 52>, <&ccu 99>;
  78             clock-names = "bus", "mod";
  79             resets = <&ccu 30>;
  80             #clock-cells = <1>;
  81             #reset-cells = <1>;
  82         };
  83     };
  84
  85 ...