linux-kernel - [PATCH V6 1/6] dt-bindings: Add the yaml bindings for EUD

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Message-ID: <e6a490c5eab9750decd5204d284b9b163b9be187.1644339918.git.quic_schowdhu@quicinc.com>
Date:   Tue, 8 Feb 2022 23:24:24 +0530
From:   Souradeep Chowdhury <quic_schowdhu@...cinc.com>
To:     <linux-arm-msm@...r.kernel.org>, <linux-usb@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <pure.logic@...us-software.ie>,
        <bjorn.andersson@...aro.org>, <greg@...ah.com>, <robh@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <quic_tsoni@...cinc.com>,
        <quic_psodagud@...cinc.com>, <quic_satyap@...cinc.com>,
        <quic_pheragu@...cinc.com>, <quic_rjendra@...cinc.com>,
        <quic_sibis@...cinc.com>, <quic_saipraka@...cinc.com>,
        <quic_schowdhu@...cinc.com>
Subject: [PATCH V6 1/6] dt-bindings: Add the yaml bindings for EUD

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

Signed-off-by: Souradeep Chowdhury <quic_schowdhu@...cinc.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../devicetree/bindings/soc/qcom/qcom,eud.yaml     | 77 ++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,eud.yaml

diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,eud.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,eud.yaml
new file mode 100644
index 0000000..c98aab2
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,eud.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/soc/qcom/qcom,eud.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm Embedded USB Debugger
+
+maintainers:
+  - Souradeep Chowdhury <quic_schowdhu@...cinc.com>
+
+description:
+  This binding is used to describe the Qualcomm Embedded USB Debugger, which is
+  mini USB-hub implemented on chip to support USB-based debug capabilities.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - qcom,sc7280-eud
+      - const: qcom,eud
+
+  reg:
+    items:
+      - description: EUD Base Register Region
+      - description: EUD Mode Manager Register
+
+  interrupts:
+    description: EUD interrupt
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    description:
+      These ports is to be attached to the endpoint of the DWC3 controller node
+      and type C connector node. The controller has the "usb-role-switch"
+      property.
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: This port is to be attached to the DWC3 controller.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: This port is to be attached to the type C connector.
+
+required:
+  - compatible
+  - reg
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    eud@...0000 {
+           compatible = "qcom,sc7280-eud","qcom,eud";
+           reg = <0x88e0000 0x2000>,
+                 <0x88e2000 0x1000>;
+           ports {
+                   #address-cells = <1>;
+                   #size-cells = <0>;
+                   port@0 {
+                           reg = <0>;
+                           eud_ep: endpoint {
+                                   remote-endpoint = <&usb2_role_switch>;
+                           };
+                   };
+                   port@1 {
+                           reg = <1>;
+                           eud_con: endpoint {
+                                   remote-endpoint = <&con_eud>;
+                           };
+                   };
+           };
+    };
-- 
2.7.4