Re: [PATCH 02/25] dt-bindings: iio: adc: exynos-adc: require second interrupt with touch screen

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On Mon, Sep 07, 2020 at 06:11:18PM +0200, Krzysztof Kozlowski wrote:
> The ADC in S3C/S5P/Exynos SoCs can be used also for handling touch
> screen.  In such case the second interrupt is required.  This second
> interrupt can be anyway provided, even without touch screens.  This
> fixes dtbs_check warnings like:
> 
>   arch/arm/boot/dts/s5pv210-aquila.dt.yaml: adc@e1700000: interrupts: [[23], [24]] is too long
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> ---
>  .../bindings/iio/adc/samsung,exynos-adc.yaml      | 15 ++++++++++++++-
>  1 file changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> index cc3c8ea6a894..89b4f9c252a6 100644
> --- a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> @@ -41,7 +41,10 @@ properties:
>      maxItems: 2
>  
>    interrupts:
> -    maxItems: 1
> +    description:
> +      ADC interrupt followed by optional touchscreen interrupt.
> +    minItems: 1
> +    maxItems: 2
>  
>    "#io-channel-cells":
>      const: 1
> @@ -107,6 +110,16 @@ allOf:
>            items:
>              - const: adc
>  
> +  - if:
> +      properties:
> +        has-touchscreen:
> +          true

This evaluates as true if 'has-touchscreen' is not present too. You 
should use 'required' here.

> +    then:
> +      properties:
> +        interrupts:
> +          minItems: 2
> +          maxItems: 2
> +
>  examples:
>    - |
>      adc: adc@12d10000 {
> -- 
> 2.17.1
> 



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