Re: [PATCH 1/6] dt-bindings: mfd: Add i2c device adi5585

[Rob Herring <robh@kernel.org>]

On Tue, Jul 16, 2024 at 03:28:24PM -0400, Frank Li wrote:
> Add adi5585, which provide gpio, pwm and keypad controller.
> 
> Signed-off-by: Frank Li <Frank.Li@nxp.com>
> ---
>  .../devicetree/bindings/mfd/adi,adp5585.yaml       | 83 ++++++++++++++++++++++
>  1 file changed, 83 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
> new file mode 100644
> index 0000000000000..03c4760242ddd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
> @@ -0,0 +1,83 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/adi,adp5585.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ADI adp5585 GPIO, PWM, keypad controller
> +
> +maintainers:
> +  - Frank Li <Frank.Li@nxp.com>
> +
> +description:
> +  adp5585 is a multifunctional device that can provide GPIO, PWM and keypad.
> +
> +properties:
> +  compatible:
> +    const: adi,adp5585
> +
> +  reg:
> +    items:
> +      description: I2C device address.
> +
> +  gpio:
> +    type: object
> +    properties:
> +      compatible:
> +        const: adp5585-gpio
> +
> +      gpio-controller: true
> +
> +      "#gpio-cells":
> +        const: 2
> +
> +    required:
> +      - compatible
> +      - gpio-controller
> +      - "#gpio-cells"
> +
> +    additionalProperties: false
> +
> +  pwm:
> +    $ref: /schemas/pwm/pwm.yaml
> +    properties:
> +      compatible:
> +        const: adp5585-pwm
> +
> +      "#pwm-cells":
> +        const: 3
> +
> +    required:
> +      - compatible
> +      - "#pwm-cells"
> +
> +    unevaluatedProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        mfd@34 {
> +            compatible = "adi,adp5585";
> +            reg = <0x34>;
> +
> +            gpio {
> +                compatible = "adp5585-gpio";

Missing vendor prefix. However, ...

> +                gpio-controller;
> +                #gpio-cells = <2>;
> +            };
> +
> +            pwm {
> +                compatible = "adp5585-pwm";
> +                #pwm-cells = <3>;
> +            };

There's no need for these child nodes. This can be just:

mfd@34 {
    compatible = "adi,adp5585";
    reg = <0x34>;
    gpio-controller;
    #gpio-cells = <2>;
    #pwm-cells = <3>;
};

Rob