On Mon, Feb 26, 2018 at 07:49:18PM +0800, 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...@nxp.com>
> ---
> Change for v2:
> - Use usb connector sub-node accordingly to specify typec properties.
> 
>  .../devicetree/bindings/usb/typec-tcpci.txt        | 35 
> ++++++++++++++++++++++
>  1 file changed, 35 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..318bf01
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/typec-tcpci.txt
> @@ -0,0 +1,35 @@
> +TCPCI(Typec port cotroller interface) binding
> +---------------------------------------------
> +
> +Required properties:
> +- compatible:       should be "usb,tcpci".

usb is not a vendor. I'd do "usb-tcpci".

This will need chip specific compatible strings too.

> +- 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";
> +     reg = <0x50>;
> +     interrupt-parent = <&gpio3>;
> +     interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> +
> +     usb_con: connector {
> +             compatible = "usb-c-connector";
> +             label = "USB-C";
> +             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>;
> +     };
> +};
> -- 
> 2.7.4
> 
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