[PATCH v8 02/14] dt-bindings: usb: add documentation for typec port controller(TCPCI)
From: Li Jun <hidden>
Date: 2018-06-27 00:02:36
Also in:
linux-usb
Subsystem:
open firmware and flattened device tree bindings, the rest, usb subsystem · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Greg Kroah-Hartman
TCPCI stands for typec port controller interface, its implementation has full typec port control with power delivery support, it's a standard i2c slave with GPIO input as irq interface, detail see spec "Universal Serial Bus Type-C Port Controller Interface Specification Revision 1.0, Version 1.1" Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Li Jun <redacted> --- .../devicetree/bindings/usb/typec-tcpci.txt | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/typec-tcpci.txt b/Documentation/devicetree/bindings/usb/typec-tcpci.txt
new file mode 100644
index 0000000..0dd1469
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/typec-tcpci.txt@@ -0,0 +1,49 @@ +TCPCI(Typec port cotroller interface) binding +--------------------------------------------- + +Required properties: +- compatible: should be set one of following: + - "nxp,ptn5110" for NXP USB PD TCPC PHY IC ptn5110. + +- reg: the i2c slave address of typec port controller device. +- interrupt-parent: the phandle to the interrupt controller which provides + the interrupt. +- interrupts: interrupt specification for tcpci alert. + +Required sub-node: +- connector: The "usb-c-connector" attached to the tcpci chip, the bindings + of connector node are specified in + Documentation/devicetree/bindings/connector/usb-connector.txt + +Example: + +ptn5110@50 { + compatible = "nxp,ptn5110"; + reg = <0x50>; + interrupt-parent = <&gpio3>; + interrupts = <3 IRQ_TYPE_LEVEL_LOW>; + + usb_con: connector { + compatible = "usb-c-connector"; + label = "USB-C"; + data-role = "dual"; + power-role = "dual"; + try-power-role = "sink"; + source-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)>; + sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM) + PDO_VAR(5000, 12000, 2000)>; + op-sink-microwatt = <10000000>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@1 { + reg = <1>; + usb_con_ss: endpoint { + remote-endpoint = <&usb3_data_ss>; + }; + }; + }; + }; +};
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2.7.4