Re: [PATCH 1/2] dt-bindings: pwm: Add bindings for Toshiba Visconti PWM Controller

[Rob Herring <robh@kernel.org>]

On Fri, Sep 18, 2020 at 07:31:39AM +0900, Nobuhiro Iwamatsu wrote:
> Add bindings for the Toshiba Visconti PWM Controller.
> 
> Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
> ---
>  .../bindings/pwm/toshiba,pwm-visconti.yaml    | 48 +++++++++++++++++++
>  1 file changed, 48 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pwm/toshiba,pwm-visconti.yaml
> 
> diff --git a/Documentation/devicetree/bindings/pwm/toshiba,pwm-visconti.yaml b/Documentation/devicetree/bindings/pwm/toshiba,pwm-visconti.yaml
> new file mode 100644
> index 000000000000..9145e9478b41
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pwm/toshiba,pwm-visconti.yaml
> @@ -0,0 +1,48 @@
> +# SPDX-License-Identifier: GPL-2.0

Dual license new bindings please.

(GPL-2.0-only OR BSD-2-Clause)

> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pwm/toshiba,pwm-visconti.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Toshiba Visconti PWM Controller
> +
> +maintainers:
> +  - Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - toshiba,pwm-tmpv7708

The normal order is: vendor,soc-block

> +      - const: toshiba,pwm-visconti

Do you expect a lot of chips with the exact same version of the IP? If 
not drop. Future chips can always use toshiba,pwm-tmpv7708 as a 
fallback.

> +
> +  reg:
> +    # base address and length of the registers block for the PWM.

Drop. No need to describe common properties.

> +    maxItems: 1
> +
> +  '#pwm-cells':
> +    # should be 2. See pwm.yaml in this directory for a description of
> +    # the cells format.

Drop.

> +    const: 2
> +
> +required:
> +  - compatible
> +  - reg
> +  - '#pwm-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        pwm: pwm@241c0000 {
> +            compatible = "toshiba,pwm-tmpv7708", "toshiba,pwm-visconti";
> +            reg = <0 0x241c0000 0 0x1000>;
> +            pinctrl-names = "default";
> +            pinctrl-0 = <&pwm_mux>;
> +            #pwm-cells = <2>;
> +        };
> +    };
> -- 
> 2.27.0
>