linux-kernel - RE: [PATCH] dt-bindings: iio: Fix adi,ltc2983 uint64-matrix schema constraints

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Message-ID: <BN6PR03MB3347F56F6C3396083F16113199CD0@BN6PR03MB3347.namprd03.prod.outlook.com>
Date:   Sat, 28 Mar 2020 09:46:00 +0000
From:   "Sa, Nuno" <Nuno.Sa@...log.com>
To:     Rob Herring <robh@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>
Subject: RE: [PATCH] dt-bindings: iio: Fix adi,ltc2983 uint64-matrix schema
 constraints



> -----Original Message-----
> From: Rob Herring <robh@...nel.org>
> Sent: Freitag, 27. März 2020 23:45
> To: devicetree@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org; Sa, Nuno <Nuno.Sa@...log.com>;
> Jonathan Cameron <jic23@...nel.org>; Hartmut Knaack <knaack.h@....de>;
> Lars-Peter Clausen <lars@...afoo.de>; Peter Meerwald-Stadler
> <pmeerw@...erw.net>; linux-iio@...r.kernel.org
> Subject: [PATCH] dt-bindings: iio: Fix adi,ltc2983 uint64-matrix schema
> constraints
>
> 
> 'minItems' and 'maxItems' apply at the same level as 'items' schemas as
> the keywords apply to arrays. What's currently defined is a 3
> dimensional matrix with the outer size being undefined. To fix this,
> minItems/maxItems needs to be moved up a level.
> 
> With this fixed, the example fails validation. For matrix types, the dts
> syntax must use brackets (<>) matching the schema definition. In this
> case, the inner array size is 2 elements, so let's add the correct
> bracketing.
> 
> Fixes: 3986a14870cb ("dt-bindings: iio: Add ltc2983 documentation")
> Cc: "Nuno Sá" <nuno.sa@...log.com>
> Cc: Jonathan Cameron <jic23@...nel.org>
> Cc: Hartmut Knaack <knaack.h@....de>
> Cc: Lars-Peter Clausen <lars@...afoo.de>
> Cc: Peter Meerwald-Stadler <pmeerw@...erw.net>
> Cc: linux-iio@...r.kernel.org
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
> I'll take this via the DT tree as I have another change this will
> conflict.
> 
> Rob
> 
>  .../bindings/iio/temperature/adi,ltc2983.yaml | 38 +++++++++----------
>  1 file changed, 18 insertions(+), 20 deletions(-)
> 
> diff --git
> a/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
> b/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
> index acc030c1b20e..8fb46de6641d 100644
> --- a/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
> +++ b/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml
> @@ -123,12 +123,11 @@ patternProperties:
>            sign.
>          allOf:
>            - $ref: /schemas/types.yaml#/definitions/uint64-matrix
> +        minItems: 3
> +        maxItems: 64
>          items:
> -          minItems: 3
> -          maxItems: 64
> -          items:
> -            minItems: 2
> -            maxItems: 2
> +          minItems: 2
> +          maxItems: 2
> 
>    "^diode@":
>      type: object
> @@ -328,12 +327,11 @@ patternProperties:
>            78 and 79.
>          allOf:
>            - $ref: /schemas/types.yaml#/definitions/uint64-matrix
> +        minItems: 3
> +        maxItems: 64
>          items:
> -          minItems: 3
> -          maxItems: 64
> -          items:
> -            minItems: 2
> -            maxItems: 2
> +          minItems: 2
> +          maxItems: 2
> 
>        adi,custom-steinhart:
>          description:
> @@ -465,16 +463,16 @@ examples:
>                          adi,sensor-type = <9>; //custom thermocouple
>                          adi,single-ended;
>                          adi,custom-thermocouple = /bits/ 64
> -                                 <(-50220000) 0
> -                                  (-30200000) 99100000
> -                                  (-5300000) 135400000
> -                                  0 273150000
> -                                  40200000 361200000
> -                                  55300000 522100000
> -                                  88300000 720300000
> -                                  132200000 811200000
> -                                  188700000 922500000
> -                                  460400000 1000000000>; //10 pairs
> +                                 <(-50220000) 0>,
> +                                 <(-30200000) 99100000>,
> +                                 <(-5300000) 135400000>,
> +                                 <0 273150000>,
> +                                 <40200000 361200000>,
> +                                 <55300000 522100000>,
> +                                 <88300000 720300000>,
> +                                 <132200000 811200000>,
> +                                 <188700000 922500000>,
> +                                 <460400000 1000000000>; //10 pairs
>                 };
> 
>          };
> --

Acked-by: Nuno Sá <nuno.sa@...log.com>

Thanks,
- Nuno Sá