Commit 01afa882 authored by Bjorn Andersson's avatar Bjorn Andersson Committed by Greg Kroah-Hartman
Browse files

dt-bindings: usb: Add binding for fcs,fsa4480 



The Fairchild/ON Semiconductor FSA4480 Analog Audio switch is used in
USB Type-C configurations for muxing analog audio onto the USB
connector, and as such used to control the SBU signals for altmodes such
as DisplayPort.

Add a binding for this hardware block.

Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220422222351.1297276-7-bjorn.andersson@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 71793b57

Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml

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+72 −0
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: "http://devicetree.org/schemas/usb/fcs,fsa4480.yaml#"

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



title: ON Semiconductor Analog Audio Switch



maintainers:

  - Bjorn Andersson <bjorn.andersson@linaro.org>



properties:

  compatible:

    enum:

      - fcs,fsa4480



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  vcc-supply:

    description: power supply (2.7V-5.5V)



  mode-switch:

    description: Flag the port as possible handle of altmode switching

    type: boolean



  orientation-switch:

    description: Flag the port as possible handler of orientation switching

    type: boolean



  port:

    $ref: /schemas/graph.yaml#/properties/port

    description:

      A port node to link the FSA4480 to a TypeC controller for the purpose of

      handling altmode muxing and orientation switching.



required:

  - compatible

  - reg

  - port



additionalProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    i2c13 {

        #address-cells = <1>;

        #size-cells = <0>;



        fsa4480@42 {

          compatible = "fcs,fsa4480";

          reg = <0x42>;



          interrupts-extended = <&tlmm 2 IRQ_TYPE_LEVEL_LOW>;



          vcc-supply = <&vreg_bob>;



          mode-switch;

          orientation-switch;



          port {

            fsa4480_ept: endpoint {

              remote-endpoint = <&typec_controller>;

            };

          };

        };

    };

...