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a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768600762946588228?= X-GMAIL-MSGID: =?utf-8?q?1768600762946588228?= Document bindings for this ON Semiconductor Type-C USB SuperSpeed and DisplayPort ALT Mode Linear Redriver. Signed-off-by: Neil Armstrong Reviewed-by: Krzysztof Kozlowski --- .../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 + +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>; + }; + }; + }; + }; + }; +...