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Message-Id: <20230601-topic-sm8x50-upstream-redriver-v2-1-dda89b22b1c0@linaro.org>
Date: Wed, 07 Jun 2023 09:51:08 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH v2 1/2] dt-bindings: usb: add ON Semiconductor nb7vpq904m
Type-C Linear Redriver bindings
Document bindings for this ON Semiconductor Type-C USB SuperSpeed
and DisplayPort ALT Mode Linear Redriver.
Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
.../devicetree/bindings/usb/onnn,nb7vpq904m.yaml | 141 +++++++++++++++++++++
1 file changed, 141 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/onnn,nb7vpq904m.yaml b/Documentation/devicetree/bindings/usb/onnn,nb7vpq904m.yaml
new file mode 100644
index 000000000000..c0201da002f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/onnn,nb7vpq904m.yaml
@@ -0,0 +1,141 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/onnn,nb7vpq904m.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ON Semiconductor Type-C DisplayPort ALT Mode Linear Redriver
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@...aro.org>
+
+properties:
+ compatible:
+ enum:
+ - onnn,nb7vpq904m
+
+ reg:
+ maxItems: 1
+
+ vcc-supply:
+ description: power supply (1.8V)
+
+ enable-gpios: true
+
+ retimer-switch:
+ description: Flag the port as possible handle of SuperSpeed signals retiming
+ type: boolean
+
+ orientation-switch:
+ description: Flag the port as possible handler of orientation switching
+ type: boolean
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Super Speed (SS) Output endpoint to the Type-C connector
+
+ port@1:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ description: Super Speed (SS) Input endpoint from the Super-Speed PHY
+ unevaluatedProperties: false
+
+ properties:
+ endpoint:
+ $ref: /schemas/graph.yaml#/$defs/endpoint-base
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: |
+ An array of physical data lane indexes. Position determines how
+ lanes are connected to the redriver, It is assumed the same order
+ is kept on the other side of the redriver.
+ Lane number represents the following
+ - 0 is RX2 lane
+ - 1 is TX2 lane
+ - 2 is TX1 lane
+ - 3 is RX1 lane
+ The position determines the physical port of the redriver, in the
+ order A, B, C & D.
+ oneOf:
+ - items:
+ - const: 0
+ - const: 1
+ - const: 2
+ - const: 3
+ description: |
+ This is the lanes default layout
+ - Port A to RX2 lane
+ - Port B to TX2 lane
+ - Port C to TX1 lane
+ - Port D to RX1 lane
+ - items:
+ - const: 3
+ - const: 2
+ - const: 1
+ - const: 0
+ description: |
+ This is the USBRX2/USBTX2 and USBRX1/USBTX1 swapped lanes layout
+ - Port A to RX1 lane
+ - Port B to TX1 lane
+ - Port C to TX2 lane
+ - Port D to RX2 lane
+
+ port@2:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Sideband Use (SBU) AUX lines endpoint to the Type-C connector for the purpose of
+ handling altmode muxing and orientation switching.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ typec-mux@32 {
+ compatible = "onnn,nb7vpq904m";
+ reg = <0x32>;
+
+ vcc-supply = <&vreg_l15b_1p8>;
+
+ retimer-switch;
+ orientation-switch;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ usb_con_ss: endpoint {
+ remote-endpoint = <&typec_con_ss>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ phy_con_ss: endpoint {
+ remote-endpoint = <&usb_phy_ss>;
+ data-lanes = <3 2 1 0>;
+ };
+ };
+ port@2 {
+ reg = <2>;
+ usb_con_sbu: endpoint {
+ remote-endpoint = <&typec_dp_aux>;
+ };
+ };
+ };
+ };
+ };
+...
--
2.34.1
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