On Thu, Mar 29, 2018 at 12:06:07AM +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 <[email protected]>
> ---
> .../devicetree/bindings/usb/typec-tcpci.txt | 33
> ++++++++++++++++++++++
> 1 file changed, 33 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..7a7a8e0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/typec-tcpci.txt
> @@ -0,0 +1,33 @@
> +TCPCI(Typec port cotroller interface) binding
> +---------------------------------------------
> +
> +Required properties:
> +- compatible: should be "usb-tcpci,chip-specific-string".
Compatible strings should be in the form of "<vendor prefix>,<device>"
> +- 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 {
How is the OF graph done in this case? You need some link to the USB
controller.
> + compatible = "usb-c-connector";
> + label = "USB-C";
> + port-type = "dual";
> + try-power-role = "sink"
> + source-pdos = <0x380190c8>;
> + sink-pdos = <0x380190c8 0x3802d0c8>;
> + op-sink-microwatt-hours = <9000000>;
> + };
> +};
> --
> 2.7.4
>
> --
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