Re: [PATCH v2 2/3] dt-bindings: iio: adc: Add Allwinner D1/T113s/R329/T507 SoCs GPADC

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On 02/06/2023 00:30, Maksim Kiselev wrote:
> From: Maxim Kiselev <bigunclemax@xxxxxxxxx>
> 
> Allwinner's D1/T113s/R329/T507 SoCs have a new general purpose ADC.
> This ADC is the same for all of this SoCs. The only difference is
> the number of available channels.

Except that it wasn't tested...

> 
> Signed-off-by: Maxim Kiselev <bigunclemax@xxxxxxxxx>
> ---
>  .../iio/adc/allwinner,sun20i-d1-gpadc.yaml    | 79 +++++++++++++++++++
>  1 file changed, 79 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
> new file mode 100644
> index 000000000000..94f15bb48231
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
> @@ -0,0 +1,79 @@
> +# SPDX-License-Identifier: GPL-2.0

dual license

Please run scripts/checkpatch.pl and fix reported warnings. Some
warnings can be ignored, but the code here looks like it needs a fix.
Feel free to get in touch if the warning is not clear.


> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/adc/allwinner,sun20i-d1-gpadc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Allwinner D1 General Purpose ADC
> +
> +properties:
> +  "#io-channel-cells":
> +    const: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  compatible:
> +    enum:
> +      - allwinner,sun20i-d1-gpadc

compatible is first property

> +
> +  interrupts:
> +    maxItems: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +required:
> +  - "#io-channel-cells"
> +  - clocks
> +  - compatible
> +  - interrupts
> +  - reg
> +  - resets

required: block goes after all properties.

> +
> +patternProperties:
> +  "^channel@([0-15])$":
> +    $ref: adc.yaml
> +    type: object
> +    description: |

Do not need '|' unless you need to preserve formatting.

> +      Represents the internal channels of the ADC.
> +
> +    properties:
> +      reg:

> +        description: |
Do not need '|' unless you need to preserve formatting.

> +          The channel number.
> +          Up to 16 channels, numbered from 0 to 15.

Don't repeat constraints in free form text.

> +        items:
> +          minimum: 0
> +          maximum: 15
> +
> +    required:
> +      - reg
> +
> +    additionalProperties: false

Hm? So you do not allow anything from adc.yaml related? Are you sure
this is your intention?

> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    gpadc: adc@2009000 {
> +        compatible = "allwinner,sun20i-d1-gpadc";
> +        reg = <0x2009000 0x1000>;
> +        clocks = <&ccu 80>;
> +        resets = <&ccu 32>;
> +        interrupts = <0 57 4>;

Use proper defines

> +        #io-channel-cells = <1>;
> +
> +        channel@0 {
> +          reg = <0>;

Broken indentation.
Use 4 spaces for example indentation.

> +        };
> +
> +        channel@1 {
> +          reg = <1>;
> +        };
> +    };
> +
> +...

Best regards,
Krzysztof




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