From mboxrd@z Thu Jan 1 00:00:00 1970 From: Prakruthi Deepak Heragu Subject: [PATCH v3 1/2] dt-bindings: Documentation for qcom,eud Date: Thu, 15 Nov 2018 11:32:53 -0800 Message-ID: <1542310374-18474-2-git-send-email-pheragu@codeaurora.org> References: <1542310374-18474-1-git-send-email-pheragu@codeaurora.org> Return-path: In-Reply-To: <1542310374-18474-1-git-send-email-pheragu@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org To: linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org, ckadabi@codeaurora.org, tsoni@codeaurora.org, bryanh@codeaurora.org, psodagud@codeaurora.org, rnayak@codeaurora.org, Prakruthi Deepak Heragu , Satya Durga Srinivasu Prabhala List-Id: linux-arm-msm@vger.kernel.org Documentation for Embedded USB Debugger (EUD) device tree bindings. Signed-off-by: Satya Durga Srinivasu Prabhala Signed-off-by: Prakruthi Deepak Heragu --- .../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 = ; + 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