[2/3] dt-bindings: usb: Add Qualcomm PMIC type C controller dt-binding

Commit Message

Wesley Cheng June 9, 2020, 8:58 p.m. UTC

Introduce the dt-binding for enabling USB type C orientation and role
detection using the PM8150B.  The driver will be responsible for receiving
the interrupt at a state change on the CC lines, reading the orientation/role,
and communicating this information to the remote clients, which can include
a role switch node and a type C switch.

Signed-off-by: Wesley Cheng <[e-mail]>
---
 .../devicetree/bindings/usb/qcom,pmic-typec.yaml   | 118 +++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/qcom,pmic-typec.yaml

Patch

diff --git a/Documentation/devicetree/bindings/usb/qcom,pmic-typec.yaml b/Documentation/devicetree/bindings/usb/qcom,pmic-typec.yaml
new file mode 100644
index 0000000..34058fb
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/qcom,pmic-typec.yaml
@@ -0,0 +1,118 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/qcom,pmic-typec.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm PMIC based USB type C Detection Driver
+
+maintainers:
+  - Wesley Cheng <[e-mail]>
+
+description: |
+  Qualcomm PMIC Type C Detect
+
+properties:
+  compatible:
+    enum:
+      - qcom,pm8150b-usb-typec
+
+  reg:
+    maxItems: 1
+    description: Type C base address
+
+  interrupts:
+    maxItems: 1
+    description: CC change interrupt from PMIC
+
+  connector:
+    description: Connector type for remote endpoints
+    type: object
+
+    properties:
+      compatible:
+        enum:
+          - usb-c-connector
+
+      power-role:
+       enum:
+         - dual
+         - source
+         - sink
+
+      data-role:
+        enum:
+          - dual
+          - host
+          - device
+
+      port:
+        description: Remote endpoint connections
+        type: object
+
+        properties:
+          endpoint@0:
+            description: Connection to USB type C mux node
+            type: object
+
+            properties:
+              remote-endpoint:
+                maxItems: 1
+                description: Node reference to the type C mux
+
+          endpoint@1:
+            description: Connection to role switch node
+            type: object
+
+            properties:
+              remote-endpoint:
+                maxItems: 1
+                description: Node reference to the role switch node
+
+    required:
+      - compatible
+
+required:
+  - compatible
+  - interrupts
+  - connector
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    pm8150b {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        qcom,typec@1500 {
+            compatible = "qcom,pm8150b-usb-typec";
+            reg = <0x1500>;
+            interrupts =
+                <0x2 0x15 0x5 IRQ_TYPE_EDGE_RISING>;
+
+            connector {
+                compatible = "usb-c-connector";
+                power-role = "dual";
+                data-role = "dual";
+                port {
+                    #address-cells = <1>;
+                    #size-cells = <0>;
+                    usb3_data_ss: endpoint@0 {
+                        reg = <0>;
+                        remote-endpoint =
+                                <&qmp_ss_mux>;
+                    };
+
+                    usb3_role: endpoint@1 {
+
+                        reg = <1>;
+                        remote-endpoint =
+                                <&dwc3_drd_switch>;
+                    };
+                };
+            };
+        };
+    };
+...
+