[v3,02/12] dt-bindings: usb: add documentation for typec port controller(TCPCI)

[Mats Karrman <mats.dev.list@gmail.com>]

Hi,

On 2018-03-13 10:34, Li Jun wrote:

> 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 <jun.li@nxp.com>
> ---
> change for v3:
> - change compatible string from "usb,tcpci" to be
>    "usb-tcpci,chip-specific-string", update example of it.
>
>   .../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..fe7d2ff
> --- /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,chip-specific-string".
> +- 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 = "usb-tcpci,ptn5110";
> +	reg = <0x50>;
> +	interrupt-parent = <&gpio3>;
> +	interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> +
> +	usb_con: connector {
> +		compatible = "usb-c-connector";
> +		label = "USB-C";
> +		port-type = "dual";
> +		try-power-role = "sink"
> +		source-pdos = <0x380190c8>;
> +		sink-pdos = <0x380190c8 0x3802d0c8>;
> +		max-sink-microvolt = <9000>;
> +		max-sink-microamp = <2000>;
> +		max-sink-microwatt-hours = <18000>;
> +		op-sink-microwatt-hours = <9000>;

Values should change with suffix, e.g. 9000mV = 9000000uV

// Mats

> +	};
> +};
>
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