On Thu, Nov 15, 2018 at 11:32:53AM -0800, Prakruthi Deepak Heragu wrote: > Documentation for Embedded USB Debugger (EUD) device tree bindings.
I asked questions on v2 which were never answered. > > Signed-off-by: Satya Durga Srinivasu Prabhala <[email protected]> > Signed-off-by: Prakruthi Deepak Heragu <[email protected]> > --- > .../devicetree/bindings/soc/qcom/qcom,msm-eud.txt | 43 > ++++++++++++++++++++++ > 1 file changed, 43 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/soc/qcom/qcom,msm-eud.txt > > diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,msm-eud.txt > b/Documentation/devicetree/bindings/soc/qcom/qcom,msm-eud.txt > new file mode 100644 > index 0000000..6d339e7 > --- /dev/null > +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,msm-eud.txt > @@ -0,0 +1,43 @@ > +* Qualcomm Technologies Inc Embedded USB Debugger (EUD) > + > +The EUD (Embedded USB Debugger) is a mini-USB hub implemented > +on chip to support the USB-based debug and trace capabilities. > + > +Required properties: > + > + - compatible: Should be "qcom,msm-eud" > + - interrupts: Interrupt number > + - reg: Should be address and size of EUD register space > + > +EUD notifies clients for VBUS attach/detach and charger enable/disable > +events. The link between client and EUD is established via a directed > +graph. EUD has one endpoint of the graph link mentioning EUD as an > +output link and clients of EUD should have the other endpoint of the > +graph link as an input link. > + > +An example for EUD device node: > + > + eud: qcom,msm-eud@88e0000 { > + compatible = "qcom,msm-eud"; > + interrupts = <GIC_SPI 492 IRQ_TYPE_LEVEL_HIGH>; > + reg = <0x88e0000 0x4000>; > + usb_con: connector { > + compatible = "usb-c-connector"; > + label = "USB-C"; > + port { > + eud_usb_output: endpoint { > + remote-endpoint = <&eud_usb3_input>; > + }; > + }; > + }; > + }; > + > +An example for EUD client: > + > + usb3 { > + port { > + eud_usb3_input: endpoint { > + remote-endpoint = <&eud_usb_output>; > + }; > + }; > + }; > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project >
