[PATCH v3 2/6] dt-bindings: usb: Add Qualcomm PMIC type C controller dt-binding

Wesley Cheng
2020-06-17T18:03:32Z

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 <wcheng@codeaurora.org>
---
.../bindings/usb/qcom,pmic-typec.yaml | 117 ++++++++++++++++++
1 file changed, 117 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/qcom,pmic-typec.yaml

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 000000000000..085b4547d75a
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/qcom,pmic-typec.yaml
@@ -0,0 +1,117 @@
+# 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 <wcheng@codeaurora.org>
+
+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>;
+ };
+ };
+ };
+ };
+ };
+...