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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml
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# SPDX-License-Identifier: GPL-2.0

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/bus/allwinner,sun50i-a64-de2.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Allwinner A64 Display Engine Bus

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maintainers:

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  - Chen-Yu Tsai <wens@csie.org>

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  - Maxime Ripard <mripard@kernel.org>

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properties:

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  $nodename:

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    pattern: "^bus(@[0-9a-f]+)?$"

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  "#address-cells":

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    const: 1

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  "#size-cells":

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    const: 1

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  compatible:

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    oneOf:

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      - const: allwinner,sun50i-a64-de2

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      - items:

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          - const: allwinner,sun50i-h6-de3

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          - const: allwinner,sun50i-a64-de2

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  reg:

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    maxItems: 1

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  allwinner,sram:

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    description:

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      The SRAM that needs to be claimed to access the display engine

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      bus.

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    $ref: /schemas/types.yaml#/definitions/phandle-array

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    items:

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      - items:

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          - description: phandle to SRAM

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          - description: register value for device

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  ranges: true

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patternProperties:

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  # All other properties should be child nodes with unit-address and 'reg'

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  "^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}@[0-9a-fA-F]+$":

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    type: object

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    additionalProperties: true

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    properties:

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      reg:

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        maxItems: 1

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    required:

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      - reg

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required:

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  - compatible

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  - reg

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  - "#address-cells"

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  - "#size-cells"

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  - ranges

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  - allwinner,sram

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additionalProperties: false

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examples:

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  - |

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    bus@1000000 {

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        compatible = "allwinner,sun50i-a64-de2";

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        reg = <0x1000000 0x400000>;

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        allwinner,sram = <&de2_sram 1>;

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        #address-cells = <1>;

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        #size-cells = <1>;

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        ranges = <0 0x1000000 0x400000>;

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        display_clocks: clock@0 {

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            compatible = "allwinner,sun50i-a64-de2-clk";

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            reg = <0x0 0x100000>;

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            clocks = <&ccu 52>, <&ccu 99>;

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            clock-names = "bus", "mod";

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            resets = <&ccu 30>;

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            #clock-cells = <1>;

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            #reset-cells = <1>;

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        };

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    };

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...

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