linux-kernel - [PATCH v3 03/13] dt-bindings: usb: Add binding for Cypress cypd4226 I2C driver

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Message-ID: <20221114124053.1873316-4-waynec@nvidia.com>
Date:   Mon, 14 Nov 2022 20:40:43 +0800
From:   Wayne Chang <waynec@...dia.com>
To:     <gregkh@...uxfoundation.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <treding@...dia.com>,
        <jonathanh@...dia.com>, <thierry.reding@...il.com>,
        <heikki.krogerus@...ux.intel.com>, <ajayg@...dia.com>,
        <vkoul@...nel.org>, <p.zabel@...gutronix.de>, <balbi@...nel.org>,
        <mathias.nyman@...el.com>, <jckuo@...dia.com>
CC:     <waynec@...dia.com>, <linux-usb@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <singhanc@...dia.com>, <linux-i2c@...r.kernel.org>,
        <linux-phy@...ts.infradead.org>, <linux-tegra@...r.kernel.org>
Subject: [PATCH v3 03/13] dt-bindings: usb: Add binding for Cypress cypd4226 I2C driver

add device-tree binding documentation for Cypress cypd4226 type-C
controller's I2C interface. It is a standard I2C slave with GPIO
input as IRQ interface.

Signed-off-by: Wayne Chang <waynec@...dia.com>
---
V2 -> V3:fix additionalProperties warning on new schema
V1 -> V2:based on the review comments. Fix some addressed issues on
description, interrupts, cypress,firmware-build, connector, and 
additionalProperties properties. And also remove the status in the example.
 .../bindings/usb/cypress,cypd4226.yaml        | 86 +++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml

diff --git a/Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml b/Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml
new file mode 100644
index 000000000000..854fe2f9181c
--- /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 UCSI I2C Type-C Controller
+
+maintainers:
+  - Wayne Chang <waynec@...dia.com>
+
+description:
+  The Cypress cypd4226 UCSI I2C type-C controller is a I2C interface type-C
+  controller.
+
+properties:
+  compatible:
+    const: cypress,cypd4226
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+  reg:
+    const: 0x08
+
+  interrupts:
+    items:
+      - description: cypd4226 I2C interrupt
+
+  cypress,firmware-build:
+    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";
+        interrupt-parent = <&gpio_aon>;
+        interrupts = <TEGRA194_AON_GPIO(BB, 2) IRQ_TYPE_LEVEL_LOW>;
+        reg = <0x08>;
+        cypress,firmware-build = "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>;
+            };
+          };
+        };
+      };
+    };
-- 
2.25.1