new file mode 100644
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/typec-switch-simple.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Typec Orientation Switch Simple Solution Bindings
+
+maintainers:
+ - Li Jun <jun.li@nxp.com>
+
+description: -|
+ USB SuperSpeed (SS) lanes routing to which side of typec connector is
+ decided by orientation, this maybe achieved by some simple control like
+ GPIO toggle. This control is through a mux controller, so there are 2
+ nodes, one is the mux control provider(e.g. gpio-mux), the other one is
+ the typec-orientation-switch node as the consumer of mux control.
+
+properties:
+ compatible:
+ const: typec-orientation-switch
+
+ mux-controls:
+ description: -|
+ Phandle to mux controller node, the mux controller node see
+ Documentation/devicetree/bindings/mux/mux-controller.txt,
+ we have the fixed state of 0 for CC1, and fixed state 1 for
+ CC2.
+
+ mux-control-names:
+ const: mux-typec-switch
+
+ port:
+ type: object
+ additionalProperties: false
+ description: -|
+ Connection to the remote endpoint using OF graph bindings that model
+ SS data bus to typec connector.
+
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ endpoint@0:
+ type: object
+ description: Endpoint connected to typec connector.
+ additionalProperties: false
+
+ properties:
+ reg:
+ const: 0
+ remote-endpoint: true
+
+ required:
+ - remote-endpoint
+
+ endpoint@1:
+ type: object
+ description: Endpoint connected to usb controller.
+ additionalProperties: false
+
+ properties:
+ reg:
+ const: 1
+ remote-endpoint: true
+
+ required:
+ - remote-endpoint
+
+ required:
+ - endpoint@0
+
+required:
+ - compatible
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ mux: mux-controller {
+ #mux-control-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ss_sel>;
+ mux-gpios = <&gpio3 15 GPIO_ACTIVE_HIGH>,
+ <&gpio2 20 GPIO_ACTIVE_HIGH>;
+ idle-state = <2>;
+ };
+
+ typec_switch {
+ compatible = "typec-orientation-switch";
+ mux-controls = <&mux>;
+ mux-control-names = "mux-typec-switch";
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb3_orien_sel: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&typec_con_ss>;
+ };
+
+ usb3_con_data: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&dwc3_0>;
+ };
+ };
+ };
Some platforms need a simple driver to do some controls according to typec orientation, this can be extended to be a generic driver with compatible with "typec-orientation-switch". Signed-off-by: Li Jun <jun.li@nxp.com> --- change for v7: - Use existing mux control binding node for actual typec switch control, and new typec-orientation-switch as the consumer of it to provide typec_switch for typec subsystem, this way typec switch can use any existing mux control bindings and no need change current common typec switch interface. - Only send this binding patch for v7, will send out drivers changes after binding finalized. changes for v6: - Use general mux bindings for typec switch, one typec switch may have 1 or 2 GPIOs for channel selection, if 1 GPIO, only can be used to select cc1 or cc2; if 2 GPIOs, the second GPIO can be used to deselect both channels or keep normal operations. - Add one more connection to usb controller. No changes for v5. changes on v4: - Use compatible instead of bool property for switch matching. - Change switch GPIO to be switch simple. - Change the active channel selection GPIO to be optional. previous discussion: http://patchwork.ozlabs.org/patch/1054342/ .../bindings/usb/typec-switch-simple.yaml | 113 +++++++++++++++++++++ 1 file changed, 113 insertions(+)