From: Avaneesh Kumar Dwivedi <akdwived@codeaurora.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,
satyap@codeaurora.org, pheragu@codeaurora.org,
Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>
Subject: [PATCH v4 1/2] dt-bindings: Documentation for qcom,eud
Date: Fri, 31 Jan 2020 10:13:30 +0530 [thread overview]
Message-ID: <1580445811-15948-2-git-send-email-akdwived@codeaurora.org> (raw)
In-Reply-To: <1580445811-15948-1-git-send-email-akdwived@codeaurora.org>
Documentation for Embedded USB Debugger (EUD) device tree bindings.
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
Signed-off-by: Prakruthi Deepak Heragu <pheragu@codeaurora.org>
Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>
---
.../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..57476ce
--- /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 event consumer(i.e.USB controller for vbus
+attach/detach event) and EUD is established via a directed graph. EUD
+act as an output link and clients of EUD as input link of this directed
+graph. Events flows through the directed graph only during debug mode.
+
+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>;
+ };
+ };
+ };
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.
next prev parent reply other threads:[~2020-01-31 4:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-31 4:43 [PATCH v4 0/2] Add Embedded USB Debugger (EUD) driver Avaneesh Kumar Dwivedi
2020-01-31 4:43 ` Avaneesh Kumar Dwivedi [this message]
2020-02-04 2:51 ` [PATCH v4 1/2] dt-bindings: Documentation for qcom,eud Bryan O'Donoghue
2020-02-16 13:11 ` Dwivedi, Avaneesh Kumar (avani)
2020-02-04 3:17 ` Bryan O'Donoghue
2020-02-16 13:14 ` Dwivedi, Avaneesh Kumar (avani)
2020-01-31 4:43 ` [PATCH v4 2/2] Embedded USB Debugger (EUD) driver Avaneesh Kumar Dwivedi
2020-02-03 19:35 ` Bjorn Andersson
2020-02-04 3:10 ` Bryan O'Donoghue
2020-02-16 16:07 ` Dwivedi, Avaneesh Kumar (avani)
2020-02-17 19:44 ` Bryan O'Donoghue
2020-02-18 13:23 ` Dwivedi, Avaneesh Kumar (avani)
2020-02-18 14:48 ` Bryan O'Donoghue
2020-04-04 14:12 ` Dwivedi, Avaneesh Kumar (avani)
2020-02-16 14:14 ` Dwivedi, Avaneesh Kumar (avani)
2020-02-18 3:35 ` Bjorn Andersson
2020-02-18 13:00 ` Dwivedi, Avaneesh Kumar (avani)
2020-02-07 10:04 ` Greg KH
2020-02-16 16:22 ` Dwivedi, Avaneesh Kumar (avani)
2020-02-16 16:35 ` Greg KH
2020-02-17 7:21 ` Dwivedi, Avaneesh Kumar (avani)
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