summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/connector/usb-connector.txt
diff options
context:
space:
mode:
Diffstat (limited to 'dts/Bindings/connector/usb-connector.txt')
-rw-r--r--dts/Bindings/connector/usb-connector.txt75
1 files changed, 75 insertions, 0 deletions
diff --git a/dts/Bindings/connector/usb-connector.txt b/dts/Bindings/connector/usb-connector.txt
new file mode 100644
index 0000000..e1463f1
--- /dev/null
+++ b/dts/Bindings/connector/usb-connector.txt
@@ -0,0 +1,75 @@
+USB Connector
+=============
+
+USB connector node represents physical USB connector. It should be
+a child of USB interface controller.
+
+Required properties:
+- compatible: describes type of the connector, must be one of:
+ "usb-a-connector",
+ "usb-b-connector",
+ "usb-c-connector".
+
+Optional properties:
+- label: symbolic name for the connector,
+- type: size of the connector, should be specified in case of USB-A, USB-B
+ non-fullsize connectors: "mini", "micro".
+
+Required nodes:
+- any data bus to the connector should be modeled using the OF graph bindings
+ specified in bindings/graph.txt, unless the bus is between parent node and
+ the connector. Since single connector can have multpile data buses every bus
+ has assigned OF graph port number as follows:
+ 0: High Speed (HS), present in all connectors,
+ 1: Super Speed (SS), present in SS capable connectors,
+ 2: Sideband use (SBU), present in USB-C.
+
+Examples
+--------
+
+1. Micro-USB connector with HS lines routed via controller (MUIC):
+
+muic-max77843@66 {
+ ...
+ usb_con: connector {
+ compatible = "usb-b-connector";
+ label = "micro-USB";
+ type = "micro";
+ };
+};
+
+2. USB-C connector attached to CC controller (s2mm005), HS lines routed
+to companion PMIC (max77865), SS lines to USB3 PHY and SBU to DisplayPort.
+DisplayPort video lines are routed to the connector via SS mux in USB3 PHY.
+
+ccic: s2mm005@33 {
+ ...
+ usb_con: connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ usb_con_hs: endpoint {
+ remote-endpoint = <&max77865_usbc_hs>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ usb_con_ss: endpoint {
+ remote-endpoint = <&usbdrd_phy_ss>;
+ };
+ };
+ port@2 {
+ reg = <2>;
+ usb_con_sbu: endpoint {
+ remote-endpoint = <&dp_aux>;
+ };
+ };
+ };
+ };
+};