Document bindings for the Parade PS8830 Type-C retimer. This retimer is currently found on all boards featuring Qualcomm Snapdragon X Elite SoCs and it is needed to provide altmode muxing between DP and USB. Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxx> --- .../devicetree/bindings/usb/parade,ps8830.yaml | 117 +++++++++++++++++++++ 1 file changed, 117 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/parade,ps8830.yaml b/Documentation/devicetree/bindings/usb/parade,ps8830.yaml new file mode 100644 index 000000000000..1223abf5c2f8 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/parade,ps8830.yaml @@ -0,0 +1,117 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/parade,ps8830.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Parade PS8830 USB and DisplayPort Retimer + +maintainers: + - Abel Vesa <abel.vesa@xxxxxxxxxx> + +properties: + compatible: + enum: + - parade,ps8830 + + reg: + maxItems: 1 + + clocks: + items: + - description: XO Clock + + clock-names: + items: + - const: xo + + reset-gpios: + maxItems: 1 + + vdd15-supply: + description: power supply (1.5V) + + vdd18-supply: + description: power supply (1.8V) + + vdd33-supply: + description: power supply (3.3V) + + orientation-switch: true + retimer-switch: true + + ports: + $ref: /schemas/graph.yaml#/properties/ports + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Super Speed (SS) Output endpoint to the Type-C connector + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + description: Super Speed (SS) Input endpoint from the Super-Speed PHY + unevaluatedProperties: false + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: + Sideband Use (SBU) AUX lines endpoint to the Type-C connector for the purpose of + handling altmode muxing and orientation switching. + +required: + - compatible + - reg + +allOf: + - $ref: usb-switch.yaml# + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + typec-mux@8 { + compatible = "parade,ps8830"; + reg = <0x8>; + + vdd15-supply = <&vreg_rtmr_1p15>; + vdd18-supply = <&vreg_rtmr_1p8>; + vdd33-supply = <&vreg_rtmr_3p3>; + + reset-gpios = <&pm8550_gpios 10 GPIO_ACTIVE_HIGH>; + + retimer-switch; + orientation-switch; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + usb_con_ss: endpoint { + remote-endpoint = <&typec_con_ss>; + }; + }; + port@1 { + reg = <1>; + phy_con_ss: endpoint { + remote-endpoint = <&usb_phy_ss>; + data-lanes = <3 2 1 0>; + }; + }; + port@2 { + reg = <2>; + usb_con_sbu: endpoint { + remote-endpoint = <&typec_dp_aux>; + }; + }; + }; + }; + }; +... -- 2.34.1
