linux-kernel - [PATCH 1/2] dt-bindings: Documentation for qcom,eud

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Message-Id: <1533061333-7680-2-git-send-email-pheragu@codeaurora.org>
Date:   Tue, 31 Jul 2018 11:22:12 -0700
From:   Prakruthi Deepak Heragu <pheragu@...eaurora.org>
To:     linux-arm-msm@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, tsoni@...eaurora.org,
        ckadabi@...eaurora.org, bryanh@...eaurora.org,
        psodagud@...eaurora.org,
        Satya Durga Srinivasu Prabhala <satyap@...eaurora.org>,
        Prakruthi Deepak Heragu <pheragu@...eaurora.org>
Subject: [PATCH 1/2] dt-bindings: Documentation for qcom,eud

Documentation for Embedded USB Debugger (EUD) device tree bindings.

Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@...eaurora.org>
Signed-off-by: Prakruthi Deepak Heragu <pheragu@...eaurora.org>
---
 .../devicetree/bindings/soc/qcom/qcom,msm-eud.txt  | 28 ++++++++++++++++++++++
 1 file changed, 28 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..ea63f1c
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,msm-eud.txt
@@ -0,0 +1,28 @@
+* 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
+
+Driver notifies clients via extcon for VBUS attach/detach
+and charger enable/disable events. Clients registered for these
+notifications should have extcon property set to eud.
+
+An example for EUD device node:
+
+	eud: qcom,msm-eud@...0000 {
+		compatible = "qcom,msm-eud";
+		interrupts = <GIC_SPI 492 IRQ_TYPE_LEVEL_HIGH>;
+		reg = <0x88e0000 0x4000>;
+	};
+
+An example for EUD extcon client:
+
+	usb3 {
+		extcon = <&eud>;
+	};
-- 
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a Linux Foundation Collaborative Project