[PATCH v5 1/9] dt-bindings: usb: Add Type-C switch binding

From: Prashant Malani
Date: Wed Jun 22 2022 - 13:37:56 EST


Introduce a binding which represents a component that can control the
routing of USB Type-C data lines as well as address data line
orientation (based on CC lines' orientation).

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
Tested-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
Signed-off-by: Prashant Malani <pmalani@xxxxxxxxxxxx>
---

Changes since v4:
- Added Reviewed-by tags.
- Patch moved to 1/9 position (since Patch v4 1/7 and 2/7 were
applied to usb-next)

Changes since v3:
- No changes.

Changes since v2:
- Added Reviewed-by and Tested-by tags.

Changes since v1:
- Removed "items" from compatible.
- Fixed indentation in example.

.../devicetree/bindings/usb/typec-switch.yaml | 74 +++++++++++++++++++
1 file changed, 74 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/typec-switch.yaml

diff --git a/Documentation/devicetree/bindings/usb/typec-switch.yaml b/Documentation/devicetree/bindings/usb/typec-switch.yaml
new file mode 100644
index 000000000000..78b0190c8543
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/typec-switch.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/typec-switch.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: USB Type-C Switch
+
+maintainers:
+ - Prashant Malani <pmalani@xxxxxxxxxxxx>
+
+description:
+ A USB Type-C switch represents a component which routes USB Type-C data
+ lines to various protocol host controllers (e.g USB, VESA DisplayPort,
+ Thunderbolt etc.) depending on which mode the Type-C port, port partner
+ and cable are operating in. It can also modify lane routing based on
+ the orientation of a connected Type-C peripheral.
+
+properties:
+ compatible:
+ const: typec-switch
+
+ mode-switch:
+ type: boolean
+ description: Specify that this switch can handle alternate mode switching.
+
+ orientation-switch:
+ type: boolean
+ description: Specify that this switch can handle orientation switching.
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description: OF graph binding modelling data lines to the Type-C switch.
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Link between the switch and a Type-C connector.
+
+ required:
+ - port@0
+
+required:
+ - compatible
+ - ports
+
+anyOf:
+ - required:
+ - mode-switch
+ - required:
+ - orientation-switch
+
+additionalProperties: true
+
+examples:
+ - |
+ drm-bridge {
+ usb-switch {
+ compatible = "typec-switch";
+ mode-switch;
+ orientation-switch;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ anx_ep: endpoint {
+ remote-endpoint = <&typec_controller>;
+ };
+ };
+ };
+ };
+ };
--
2.37.0.rc0.104.g0611611a94-goog