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[V5,1/6] dt-bindings: usb: Add Cypress cypd4226 Type-C controller

Message ID 20230119111741.33901-2-jonathanh@nvidia.com
State Changes Requested
Headers show
Series Add device-tree support for Cypress CYPD4226 | expand

Commit Message

Jon Hunter Jan. 19, 2023, 11:17 a.m. UTC 
From: Wayne Chang <waynec@nvidia.com>

Add the device-tree binding documentation for Cypress cypd4226 dual
Type-C controller.

Signed-off-by: Wayne Chang <waynec@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
V4 -> V5: updated subject and updated binding to use 'firmware-name'.
V3 -> V4: no changes
V2 -> V3: fix additionalProperties warning on new schema
V1 -> V2: based on the review comments. Fix some addressed issues on

 .../bindings/usb/cypress,cypd4226.yaml        | 86 +++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml
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Patch

diff --git a/Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml b/Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml
new file mode 100644
index 000000000000..5d87c9f09913
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml
@@ -0,0 +1,86 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/cypress,cypd4226.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cypress cypd4226 Type-C Controller
+
+maintainers:
+  - Wayne Chang <waynec@nvidia.com>
+
+description:
+  The Cypress cypd4226 is a dual Type-C controller that is controlled
+  via an I2C interface.
+
+properties:
+  compatible:
+    const: cypress,cypd4226
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+  reg:
+    const: 0x08
+
+  interrupts:
+    items:
+      - description: cypd4226 host interrupt
+
+  firmware-name:
+    enum:
+      - nvidia,gpu
+      - nvidia,jetson-agx-xavier
+    description: |
+      The name of the CCGx firmware built for product series.
+      should be set one of following:
+      - "nvidia,gpu" for the NVIDIA RTX product series
+      - "nvidia,jetson-agx-xavier" for the NVIDIA Jetson product series
+
+patternProperties:
+  '^connector@[0-1]+$':
+    $ref: /schemas/connector/usb-connector.yaml#
+    properties:
+      reg:
+        maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/tegra194-gpio.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      #interrupt-cells = <2>;
+
+      ucsi-ccg@8 {
+        compatible = "cypress,cypd4226";
+        reg = <0x08>;
+        interrupt-parent = <&gpio_aon>;
+        interrupts = <TEGRA194_AON_GPIO(BB, 2) IRQ_TYPE_LEVEL_LOW>;
+        firmware-name = "nvidia,jetson-agx-xavier";
+        #address-cells = <1>;
+        #size-cells = <0>;
+        ccg_typec_con0: connector@0 {
+          compatible = "usb-c-connector";
+          reg = <0>;
+          label = "USB-C";
+          data-role = "dual";
+          port {
+            ucsi_ccg_p0: endpoint {
+              remote-endpoint = <&usb_role_switch0>;
+            };
+          };
+        };
+      };
+    };