linux-kernel - Re: [PATCH v3 7/8] dt-bindings: iio: adc: add adi,ad7606c-{16,18} compatible strings

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Message-ID: <CA+GgBR-oER6S3iqJR_T781fT-qxH2awPwdD7ubKxTZsC_RWn0g@mail.gmail.com>
Date: Thu, 5 Sep 2024 11:15:44 +0300
From: Alexandru Ardelean <aardelean@...libre.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org, jic23@...nel.org, krzk+dt@...nel.org, 
	robh@...nel.org, lars@...afoo.de, michael.hennerich@...log.com, 
	gstols@...libre.com
Subject: Re: [PATCH v3 7/8] dt-bindings: iio: adc: add adi,ad7606c-{16,18}
 compatible strings

On Thu, Sep 5, 2024 at 9:39 AM Krzysztof Kozlowski <krzk@...nel.org> wrote:
>
> On Wed, Sep 04, 2024 at 10:27:15AM +0300, Alexandru Ardelean wrote:
> > @@ -114,6 +124,45 @@ properties:
> >        assumed that the pins are hardwired to VDD.
> >      type: boolean
> >
> > +patternProperties:
> > +  "^channel@([1-8])$":
>
> Drop ()
>
> > +    type: object
> > +    $ref: adc.yaml
> > +    unevaluatedProperties: false
> > +
> > +    properties:
> > +      reg:
> > +        description:
> > +          The channel number, as specified in the datasheet (from 1 to 8).
> > +        minimum: 1
> > +        maximum: 8
> > +
> > +      diff-channels:
> > +        description:
> > +          Each channel can be configured as a differential bipolar channel.
> > +          The ADC uses the same positive and negative inputs for this.
> > +          This property must be specified as 'reg' (or the channel number) for
> > +          both positive and negative inputs (i.e. diff-channels = <reg reg>).
> > +        items:
> > +          minimum: 1
> > +          maximum: 8
> > +
> > +      bipolar:
> > +        description:
> > +          Each channel can be configured as a unipolar or bipolar single-ended.
> > +          When this property is not specified, it's unipolar, so the ADC will
> > +          have only the positive input wired.
> > +          For this ADC the 'diff-channels' & 'bipolar' properties are mutually
> > +          exclusive.
> > +
> > +    oneOf:
> > +      - required:
> > +          - reg
> > +          - diff-channels
> > +      - required:
> > +          - reg
> > +          - bipolar
>
> rather:
>
> required:
>   - reg
>
> oneOf:
>  - required:
>      - diff-channels
>  - required:
>     - bipolar

Ack

>
> > +
> >  required:
> >    - compatible
> >    - reg
> > @@ -170,6 +219,17 @@ allOf:
> >          adi,conversion-start-gpios:
> >            maxItems: 1
> >
> > +  - if:
> > +      not:
> > +        properties:
> > +          compatible:
> > +            enum:
> > +              - adi,ad7606c-16
> > +              - adi,ad7606c-18
> > +    then:
> > +      patternProperties:
> > +        "^channel@[1-8]+$": false
>
>
> You have two different patterns here and in top-level. Please keep one:
> ^channel@[1-8]$

Ah.
Good point.

>
>
> Best regards,
> Krzysztof
>