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Message-ID: <20231101174422.zs5er6tqethm46ur@CAB-WSD-L081021>
Date:   Wed, 1 Nov 2023 20:44:22 +0300
From:   Dmitry Rokosov <ddrokosov@...utedevices.com>
To:     Conor Dooley <conor@...nel.org>
CC:     Rob Herring <robh@...nel.org>, <linux-leds@...r.kernel.org>,
        <lee@...nel.org>, <linux-kernel@...r.kernel.org>,
        <kernel@...rdevices.ru>, <andy.shevchenko@...il.com>,
        <conor+dt@...nel.org>, <pavel@....cz>,
        <krzysztof.kozlowski+dt@...aro.org>, <rockosov@...il.com>,
        <robh+dt@...nel.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH v3 11/11] dt-bindings: leds: aw200xx: fix led pattern and
 add reg constraints

Hello Conor,

On Wed, Nov 01, 2023 at 04:17:14PM +0000, Conor Dooley wrote:
> On Wed, Nov 01, 2023 at 11:04:16AM -0500, Rob Herring wrote:
> > 
> > On Wed, 01 Nov 2023 17:24:45 +0300, Dmitry Rokosov wrote:
> > > AW200XX controllers have the capability to declare more than 0xf LEDs,
> > > therefore, it is necessary to accept LED names using an appropriate
> > > regex pattern.
> > > 
> > > The register offsets can be adjusted within the specified range, with
> > > the maximum value corresponding to the highest number of LEDs that can
> > > be connected to the controller.
> > > 
> > > Fixes: e338a05e76ca ("dt-bindings: leds: Add binding for AW200xx")
> > > Signed-off-by: Dmitry Rokosov <ddrokosov@...utedevices.com>
> > > ---
> > >  .../bindings/leds/awinic,aw200xx.yaml         | 64 +++++++++++++++++--
> > >  1 file changed, 58 insertions(+), 6 deletions(-)
> > > 
> > 
> > My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> > on your patch (DT_CHECKER_FLAGS is new in v5.13):
> > 
> > yamllint warnings/errors:
> > 
> > dtschema/dtc warnings/errors:
> > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/leds/awinic,aw200xx.example.dtb: led-controller@3a: led@0: Unevaluated properties are not allowed ('reg' was unexpected)
> > 	from schema $id: http://devicetree.org/schemas/leds/awinic,aw200xx.yaml#
> > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/leds/awinic,aw200xx.example.dtb: led-controller@3a: led@1: Unevaluated properties are not allowed ('reg' was unexpected)
> > 	from schema $id: http://devicetree.org/schemas/leds/awinic,aw200xx.yaml#
> > /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/leds/awinic,aw200xx.example.dtb: led-controller@3a: led@2: Unevaluated properties are not allowed ('reg' was unexpected)
> > 	from schema $id: http://devicetree.org/schemas/leds/awinic,aw200xx.yaml#
> 
> Looks like you need to drop the second part of this hunk from the patch.
> @@ -45,17 +45,12 @@ properties:
>      maxItems: 1
>  
>  patternProperties:
> -  "^led@[0-9a-f]$":
> +  "^led@[0-9a-f]+$":
>      type: object
>      $ref: common.yaml#
>      unevaluatedProperties: false
>  
>      properties:
> -      reg:
> -        description:
> -          LED number
> -        maxItems: 1
> -
>        led-max-microamp:
>          default: 9780
>          description: |
> 
> Each LED still only has one reg entry, right?

You're right... the maxItems for 'reg' is still needed. I'll back it in
the next version.
But I don't understand, why my dt_binding_check run doesn't show me this
problem... I don't specify DT_CHECKER_FLAGS, maybe this is a root cause.

-- 
Thank you,
Dmitry

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