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author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2022-04-22 15:23:50 -0700 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-26 13:47:13 +0200 |
commit | 01afa882f12dbd4a452c86215dbb6d2d05f69e4c (patch) | |
tree | f1face7325616b4e3d6420b8de67f9a097df51ed | |
parent | 71793b579ba6825d221445e3cfcd50da427b4f0e (diff) | |
download | linux-01afa882f12dbd4a452c86215dbb6d2d05f69e4c.tar.bz2 |
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: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220422222351.1297276-7-bjorn.andersson@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | Documentation/devicetree/bindings/usb/fcs,fsa4480.yaml | 72 |
1 files changed, 72 insertions, 0 deletions
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@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>; + }; + }; + }; + }; +... |