Commit 0dde9a46 authored by Neal Liu's avatar Neal Liu Committed by Greg Kroah-Hartman
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dt-bindings: usb: add documentation for aspeed udc 



Add device tree binding documentation for the Aspeed USB2.0 Device
Controller.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarNeal Liu <neal_liu@aspeedtech.com>
Link: https://lore.kernel.org/r/20220523030134.2977116-4-neal_liu@aspeedtech.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2cee50bf

Documentation/devicetree/bindings/usb/aspeed,ast2600-udc.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

# Copyright (c) 2020 Facebook Inc.

%YAML 1.2

---

$id: http://devicetree.org/schemas/usb/aspeed,ast2600-udc.yaml#

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



title: ASPEED USB 2.0 Device Controller



maintainers:

  - Neal Liu <neal_liu@aspeedtech.com>



description: |+

  The ASPEED USB 2.0 Device Controller implements 1 control endpoint and

  4 generic endpoints for AST260x.



  Supports independent DMA channel for each generic endpoint.

  Supports 32/256 stages descriptor mode for all generic endpoints.



properties:

  compatible:

    enum:

      - aspeed,ast2600-udc



  reg:

    maxItems: 1



  clocks:

    maxItems: 1



  interrupts:

    maxItems: 1



required:

  - compatible

  - reg

  - clocks

  - interrupts



additionalProperties: false



examples:

  - |

    #include <dt-bindings/clock/aspeed-clock.h>

    udc: usb@1e6a2000 {

        compatible = "aspeed,ast2600-udc";

        reg = <0x1e6a2000 0x300>;

        interrupts = <9>;

        clocks = <&syscon ASPEED_CLK_GATE_USBPORT2CLK>;

        pinctrl-names = "default";

        pinctrl-0 = <&pinctrl_usb2bd_default>;

    };