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

Rob Herring
2022-11-16T21:14:38Z

On Mon, Nov 14, 2022 at 08:40:43PM +0800, Wayne Chang wrote:
> 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.

For the subject:

dt-bindings: usb: Add Cypress cypd4226 Type-C controller

>
> Signed-off-by: Wayne Chang <waynec@nvidia.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@nvidia.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

Standard 'firmware-name' property doesn't work for you?

> +
> +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
>
>