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Message-Id: <20210305113832.v6.1.I248292623d3d0f6a4f0c5bc58478ca3c0062b49a@changeid>
Date: Fri, 5 Mar 2021 11:38:49 -0800
From: Matthias Kaehlcke <mka@...omium.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Alan Stern <stern@...land.harvard.edu>,
Rob Herring <robh+dt@...nel.org>,
Frank Rowand <frowand.list@...il.com>
Cc: Ravi Chandra Sadineni <ravisadineni@...omium.org>,
Peter Chen <peter.chen@....com>,
Michal Simek <michal.simek@...inx.com>,
Stephen Boyd <swboyd@...omium.org>,
linux-kernel@...r.kernel.org, Bastien Nocera <hadess@...ess.net>,
linux-usb@...r.kernel.org,
Douglas Anderson <dianders@...omium.org>,
devicetree@...r.kernel.org, Krzysztof Kozlowski <krzk@...nel.org>,
Matthias Kaehlcke <mka@...omium.org>
Subject: [PATCH v6 1/5] dt-bindings: usb: Add binding for Realtek RTS5411 hub controller
The Realtek RTS5411 is a USB 3.0 hub controller with 4 ports.
This initial version of the binding only describes USB related
aspects of the RTS5411, it does not cover the option of
connecting the controller as an i2c slave.
Signed-off-by: Matthias Kaehlcke <mka@...omium.org>
---
Changes in v6:
- Realtek binding instead of generic onboard_usb_hub
- added 'companion-hub' property
- added reference to 'usb-device.yaml'
- 'fixed' indentation of compatible entries to keep yamllint happy
- added 'additionalProperties' entry
- updated commit message
Changes in v5:
- updated 'title'
- only use standard USB compatible strings
- deleted 'usb_hub' node
- renamed 'usb_controller' node to 'usb-controller'
- removed labels from USB nodes
- added 'vdd-supply' to USB nodes
Changes in v4:
- none
Changes in v3:
- updated commit message
- removed recursive reference to $self
- adjusted 'compatible' definition to support multiple entries
- changed USB controller phandle to be a node
Changes in v2:
- removed 'wakeup-source' and 'power-off-in-suspend' properties
- consistently use spaces for indentation in example
.../bindings/usb/realtek,rts5411.yaml | 58 +++++++++++++++++++
1 file changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
diff --git a/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
new file mode 100644
index 000000000000..00e9b3d44583
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/realtek,rts5411.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding for the Realtek RTS5411 USB 3.0 hub controller
+
+maintainers:
+ - Matthias Kaehlcke <mka@...omium.org>
+
+allOf:
+ - $ref: usb-device.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - usbbda,5411
+ - usbbda,411
+
+ vdd-supply:
+ description:
+ phandle to the regulator that provides power to the hub.
+
+ companion-hub:
+ description:
+ phandle to the companion hub on the controller.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ usb-controller {
+ dr_mode = "host";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* 2.0 hub on port 1 */
+ hub_2_0: hub@1 {
+ compatible = "usbbda,5411";
+ reg = <1>;
+ vdd-supply = <&pp3300_hub>;
+ companion-hub = <&hub_3_0>;
+ };
+
+ /* 3.0 hub on port 2 */
+ hub_3_0: hub@2 {
+ compatible = "usbbda,411";
+ reg = <2>;
+ vdd-supply = <&pp3300_hub>;
+ companion-hub = <&hub_2_0>;
+ };
+ };
--
2.30.1.766.gb4fecdf3b7-goog
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