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. Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> --- .../devicetree/bindings/usb/fcs,fsa4480.yaml | 72 +++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml diff --git a/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml b/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml new file mode 100644 index 000000000000..9473f26b0621 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml @@ -0,0 +1,72 @@ +# 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@xxxxxxxxxx> + +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>; + }; + }; + }; + }; +... -- 2.33.1
