On 11/17/2018 8:17 PM, Rob Herring wrote:
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.
HI Rob,
Can you please review my replies against your comments on patchset v2?
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@xxxxxxxxxxxxxx>
Signed-off-by: Prakruthi Deepak Heragu <pheragu@xxxxxxxxxxxxxx>
---
.../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
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--- /dev/null
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+* 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>;
+ };
+ };
+ };
--
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a Linux Foundation Collaborative Project
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.
