[PATCH 03/12] staging: typec: tcpci: add documentation for tcpci
From: Li Jun <hidden>
Date: 2017-09-26 00:45:18
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" Signed-off-by: Li Jun <redacted> --- .../devicetree/bindings/usb/typec-tcpci.txt | 36 ++++++++++++++++++++++ 1 file changed, 36 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..9268440
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/typec-tcpci.txt@@ -0,0 +1,36 @@ +TCPCI(Typec port cotroller interface) binding +--------------------------------------------- + +Required properties: +- compatible: should be "usb,tcpci". +- 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. +- port-type: typec port type. +- default-role: preferred power role if port type is "dual". + +Required properties only for power source or drp: +- src-pdos + +Required properties only for power sink or drp: +- snk-pdos +- max-snk-mv +- max-snk-ma +- op-snk-mw + +Example: + +ptn5110@50 { + compatible = "usb,tcpci"; + reg = <0x50>; + interrupt-parent = <&gpio3>; + interrupts = <3 IRQ_TYPE_LEVEL_LOW>; + port-type = "dual"; + default-role = "sink"; + src-pdos = <0x380190c8>; + snk-pdos = <0x380190c8 0x3802d0c8>; + max-snk-mv = <9000>; + max-snk-ma = <1000>; + op-snk-mw = <9000>; +};
--
2.6.6
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