Add a graph with 4 output endpoints to this hub binding to support the
scenario where a downstream facing port is connected to a device that
isn't a connector or a USB device with a VID:PID. This will be used to
connect downstream facing ports to USB type-c switches so the USB
superspeed and high speed lanes can be put onto USB connectors.
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
Cc: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
Cc: <linux-usb@xxxxxxxxxxxxxxx>
Cc: <devicetree@xxxxxxxxxxxxxxx>
Cc: Pin-yen Lin <treapking@xxxxxxxxxxxx>
Cc: maciek swiech <drmasquatch@xxxxxxxxxx>
Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
---
.../bindings/usb/realtek,rts5411.yaml | 55 +++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
index f0784d2e86da..0874fc21f66f 100644
--- a/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
+++ b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
@@ -21,6 +21,12 @@ properties:
reg: true
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
vdd-supply:
description:
phandle to the regulator that provides power to the hub.
@@ -30,6 +36,36 @@ properties:
description:
phandle to the peer hub on the controller.
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ 1st downstream facing USB port
+
+ port@2:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ 2nd downstream facing USB port
+
+ port@3:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ 3rd downstream facing USB port
+
+ port@4:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ 4th downstream facing USB port
+
+patternProperties:
+ '^.*@[1-4]$':
+ description: The hard wired USB devices
+ type: object
+ $ref: /schemas/usb/usb-device.yaml
+
required:
- peer-hub
- compatible
@@ -50,6 +86,13 @@ examples:
reg = <1>;
vdd-supply = <&pp3300_hub>;
peer-hub = <&hub_3_0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ /* USB 2.0 device on port 2 */
+ device@2 {
+ compatible = "usb123,4567";
+ reg = <2>;
+ };
};
/* 3.0 hub on port 2 */
@@ -58,5 +101,17 @@ examples:
reg = <2>;
vdd-supply = <&pp3300_hub>;
peer-hub = <&hub_2_0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ /* Type-A connector on port 4 */
+ port@4 {
+ reg = <4>;
+ endpoint {
+ remote-endpoint = <&usb_a0_ss>;
+ };
+ };
+ };
};
};
--
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