linux-kernel - Re: [PATCH v6 5/6] media: dt-bindings: ov5693: document YAML binding

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Message-ID: <Ys7YPIveQHRbG7BE@valkosipuli.retiisi.eu>
Date:   Wed, 13 Jul 2022 17:35:40 +0300
From:   Sakari Ailus <sakari.ailus@....fi>
To:     Tommaso Merciai <tommaso.merciai@...rulasolutions.com>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh@...nel.org>, linux-media@...r.kernel.org,
        quentin.schulz@...obroma-systems.com,
        Daniel Scally <djrscally@...il.com>,
        linuxfancy@...glegroups.com, linux-amarula@...rulasolutions.com,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 5/6] media: dt-bindings: ov5693: document YAML binding

Hi Tommaso, Krzysztof,

On Wed, Jul 13, 2022 at 03:24:51PM +0200, Tommaso Merciai wrote:
> On Wed, Jul 13, 2022 at 08:52:34AM +0200, Krzysztof Kozlowski wrote:
> > On 13/07/2022 08:48, Tommaso Merciai wrote:
> > > Hi Rob,
> > > 
> > > On Tue, Jul 12, 2022 at 04:29:35PM -0600, Rob Herring wrote:
> > >> On Tue, 12 Jul 2022 18:33:48 +0200, Tommaso Merciai wrote:
> > >>> Add documentation of device tree in YAML schema for the OV5693
> > >>> CMOS image sensor from Omnivision
> > >>>
> > >>> Signed-off-by: Tommaso Merciai <tommaso.merciai@...rulasolutions.com>
> > >>> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> > >>> ---
> > >>> Changes since v1:
> > >>>  - Fix allOf position as suggested by Krzysztof
> > >>>  - Remove port description as suggested by Krzysztof
> > >>>  - Fix EOF as suggested by Krzysztof
> > >>>
> > >>> Changes since v2:
> > >>>  - Fix commit body as suggested by Krzysztof
> > >>>
> > >>> Changes since v3:
> > >>>  - Add reviewed-by tags, suggested by Jacopo, Krzysztof
> > >>>
> > >>> Changes since v4:
> > >>>  - Remove wrong Sakari reviewed-by tag, suggested by Krzysztof, Sakari
> > >>>
> > >>> Changes since v5:
> > >>>  - Remove dovdd-supply, avdd-supply, dvdd-supply from required properties
> > >>> as suggested by Jacopo
> > >>>
> > >>>  .../bindings/media/i2c/ovti,ov5693.yaml       | 103 ++++++++++++++++++
> > >>>  MAINTAINERS                                   |   1 +
> > >>>  2 files changed, 104 insertions(+)
> > >>>  create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,ov5693.yaml
> > >>>
> > >>
> > >> 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/linux-dt-review/Documentation/devicetree/bindings/media/i2c/ovti,ov5693.example.dtb: camera@36: Unevaluated properties are not allowed ('port' was unexpected)
> > >> 	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/media/i2c/ovti,ov5693.yaml
> > >>
> > >> doc reference errors (make refcheckdocs):
> > >>
> > >> See https://patchwork.ozlabs.org/patch/
> > >>
> > >> This check can fail if there are any dependencies. The base for a patch
> > >> series is generally the most recent rc1.
> > >>
> > >> If you already ran 'make dt_binding_check' and didn't see the above
> > >> error(s), then make sure 'yamllint' is installed and dt-schema is up to
> > >> date:
> > >>
> > >> pip3 install dtschema --upgrade
> > >>
> > >> Please check and re-submit.
> > >>
> > > 
> > > I run:
> > > 
> > > pip3 install dtschema --upgrade
> > > 
> > > Then I check .yaml using:
> > > 
> > > make DT_CHECKER_FLAGS=-m dt_binding_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/media/i2c/ovti,ov5693.yaml
> > > DTEX    Documentation/devicetree/bindings/media/i2c/ovti,ov5693.example.dts
> > > LINT    Documentation/devicetree/bindings
> > > CHKDT   Documentation/devicetree/bindings/processed-schema.json
> > > SCHEMA  Documentation/devicetree/bindings/processed-schema.json
> > > DTC     Documentation/devicetree/bindings/media/i2c/ovti,ov5693.example.dtb
> > > CHECK   Documentation/devicetree/bindings/media/i2c/ovti,ov5693.example.dtb
> > > 
> > > No error on my side. I'm missing something?
> > 
> > Rob's check are running newer dtschema, from master branch. The error he
> > reports is about missing port, although I thought it is coming from
> > video-interface-devices.
> 
> Hi Krzysztof, 
> Thanks for the info! :)

These bindings are indeed missing the port node, please add one. See e.g.
Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml for an
example.

The reason why video-interfaces and video-interface-device are sparate is
because they deal with different nodes (device vs. port).

-- 
Kind regards,

Sakari Ailus