Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-12 23:23:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

dt-bindings: usb: Add downstream facing ports to realtek binding

Browse Source 
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@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Matthias Kaehlcke <mka@chromium.org>
Cc: linux-usb@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Pin-yen Lin <treapking@chromium.org>
Cc: maciek swiech <drmasquatch@google.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240223005823.3074029-2-swboyd@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stephen Boyd 2024-02-22 16:58:20 -08:00 committed by Greg Kroah-Hartman
parent 966bf794e0
commit c44d9dab31
1 changed files with 55 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
View File

@ -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>;
};
};
};
};
};