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dt-bindings: add bindings for Samsung micro-USB 11-pin connector

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Samsung micro-USB 11-pin connector beside standard micro-USB pins,
has pins dedicated to route MHL traffic.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Andrzej Hajda 2018-02-27 08:11:30 +01:00 committed by Chanwoo Choi
parent 593aa2b405
commit 1421717321
1 changed files with 49 additions and 0 deletions
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Documentation/devicetree/bindings/connector/samsung,usb-connector-11pin.txt Normal file
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Samsung micro-USB 11-pin connector
==================================
Samsung micro-USB 11-pin connector is an extension of micro-USB connector.
It is present in multiple Samsung mobile devices.
It has additional pins to route MHL traffic simultanously with USB.
The bindings are superset of usb-connector bindings for micro-USB connector[1].
Required properties:
- compatible: must be: "samsung,usb-connector-11pin", "usb-b-connector",
- type: must be "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),
3: Mobile High-Definition Link (MHL), specific to 11-pin Samsung micro-USB.
[1]: bindings/connector/usb-connector.txt
Example
-------
Micro-USB connector with HS lines routed via controller (MUIC) and MHL lines
connected to HDMI-MHL bridge (sii8620):
muic-max77843@66 {
...
usb_con: connector {
compatible = "samsung,usb-connector-11pin", "usb-b-connector";
label = "micro-USB";
type = "micro";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@3 {
reg = <3>;
usb_con_mhl: endpoint {
remote-endpoint = <&sii8620_mhl>;
};
};
};
};
};