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    Subject[PATCH v10 1/5] dt-bindings: usb: Add binding for Realtek RTS5411 hub controller
    Date
    The Realtek RTS5411 is a USB 3.0 hub controller with 4 ports.

    This initial version of the binding only describes USB related
    aspects of the RTS5411, it does not cover the option of
    connecting the controller as an i2c slave.

    Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
    Reviewed-by: Rob Herring <robh@kernel.org>
    ---

    Changes in v10:
    - none

    Changes in v9:
    - added Rob's 'Reviewed-by' tag

    Changes in v8:
    - added entry for 'reg'
    - marked 'companion-hub' as required
    - changed node name of USB controller to 'usb'

    Changes in v7:
    - added type ref for 'companion-hub' property

    Changes in v6:
    - Realtek binding instead of generic onboard_usb_hub
    - added 'companion-hub' property
    - added reference to 'usb-device.yaml'
    - 'fixed' indentation of compatible entries to keep yamllint happy
    - added 'additionalProperties' entry
    - updated commit message

    Changes in v5:
    - updated 'title'
    - only use standard USB compatible strings
    - deleted 'usb_hub' node
    - renamed 'usb_controller' node to 'usb-controller'
    - removed labels from USB nodes
    - added 'vdd-supply' to USB nodes

    Changes in v4:
    - none

    Changes in v3:
    - updated commit message
    - removed recursive reference to $self
    - adjusted 'compatible' definition to support multiple entries
    - changed USB controller phandle to be a node

    Changes in v2:
    - removed 'wakeup-source' and 'power-off-in-suspend' properties
    - consistently use spaces for indentation in example

    .../bindings/usb/realtek,rts5411.yaml | 62 +++++++++++++++++++
    1 file changed, 62 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/usb/realtek,rts5411.yaml

    diff --git a/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
    new file mode 100644
    index 000000000000..04ee255eb4f0
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
    @@ -0,0 +1,62 @@
    +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
    +%YAML 1.2
    +---
    +$id: http://devicetree.org/schemas/usb/realtek,rts5411.yaml#
    +$schema: http://devicetree.org/meta-schemas/core.yaml#
    +
    +title: Binding for the Realtek RTS5411 USB 3.0 hub controller
    +
    +maintainers:
    + - Matthias Kaehlcke <mka@chromium.org>
    +
    +allOf:
    + - $ref: usb-device.yaml#
    +
    +properties:
    + compatible:
    + items:
    + - enum:
    + - usbbda,5411
    + - usbbda,411
    +
    + reg: true
    +
    + vdd-supply:
    + description:
    + phandle to the regulator that provides power to the hub.
    +
    + companion-hub:
    + $ref: '/schemas/types.yaml#/definitions/phandle'
    + description:
    + phandle to the companion hub on the controller.
    +
    +required:
    + - companion-hub
    + - compatible
    + - reg
    +
    +additionalProperties: false
    +
    +examples:
    + - |
    + usb {
    + dr_mode = "host";
    + #address-cells = <1>;
    + #size-cells = <0>;
    +
    + /* 2.0 hub on port 1 */
    + hub_2_0: hub@1 {
    + compatible = "usbbda,5411";
    + reg = <1>;
    + vdd-supply = <&pp3300_hub>;
    + companion-hub = <&hub_3_0>;
    + };
    +
    + /* 3.0 hub on port 2 */
    + hub_3_0: hub@2 {
    + compatible = "usbbda,411";
    + reg = <2>;
    + vdd-supply = <&pp3300_hub>;
    + companion-hub = <&hub_2_0>;
    + };
    + };
    --
    2.31.1.607.g51e8a6a459-goog
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