linux-kernel - Re: [RESEND v4 1/3] dt-bindings: mediatek: add vdosys1 RDMA definition for mt8195

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Message-ID: <1a563a388e78e4eab4d1b9ae7b44f761b1e90865.camel@mediatek.com>
Date:   Wed, 8 Jun 2022 09:54:33 +0800
From:   Rex-BC Chen <rex-bc.chen@...iatek.com>
To:     Rob Herring <robh@...nel.org>
CC:     Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "pavel@....cz" <pavel@....cz>,
        "Nancy Lin (林欣螢)" 
        <Nancy.Lin@...iatek.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        CK Hu (胡俊光) 
        <ck.hu@...iatek.com>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>
Subject: Re: [RESEND v4 1/3] dt-bindings: mediatek: add vdosys1 RDMA
 definition for mt8195

On Tue, 2022-06-07 at 23:11 +0800, Rob Herring wrote:
> On Mon, Jun 06, 2022 at 09:30:42PM +0800, Rex-BC Chen wrote:
> > On Mon, 2022-06-06 at 20:53 +0800, Rob Herring wrote:
> > > On Mon, 06 Jun 2022 13:11:29 +0800, Bo-Chen Chen wrote:
> > > > From: "Nancy.Lin" <nancy.lin@...iatek.com>
> > > > 
> > > > Add vdosys1 RDMA definition.
> > > > 
> > > > Signed-off-by: Nancy.Lin <nancy.lin@...iatek.com>
> > > > Signed-off-by: Bo-Chen Chen <rex-bc.chen@...iatek.com>
> > > > Reviewed-by: AngeloGioacchino Del Regno <
> > > > angelogioacchino.delregno@...labora.com>
> > > > Reviewed-by: Krzysztof Kozlowski <
> > > > krzysztof.kozlowski@...aro.org>
> > > > Tested-by: AngeloGioacchino Del Regno <
> > > > angelogioacchino.delregno@...labora.com>
> > > > ---
> > > >  .../display/mediatek/mediatek,mdp-rdma.yaml   | 88
> > > > +++++++++++++++++++
> > > >  1 file changed, 88 insertions(+)
> > > >  create mode 100644
> > > > Documentation/devicetree/bindings/display/mediatek/mediatek,mdp
> > > > -
> > > > rdma.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/display/mediatek/mediate
> > > k,md
> > > p-rdma.yaml: properties:compatible: [{'const': 'mediatek,mt8195-
> > > vdo1-
> > > rdma'}] is not of type 'object', 'boolean'
> > > 	from schema $id: 
> > > 
https://urldefense.com/v3/__http://json-schema.org/draft-07/schema*__;Iw!!CTRNKA9wMg0ARbw!3hhZrSKSWnCN5Bha9laiHlB5JCx9_p-ksaYDZmoCLQRi1tI4KJCcTJQva2vds3j3bwKF$
> > >  
> > > /builds/robherring/linux-dt-
> > > review/Documentation/devicetree/bindings/display/mediatek/mediate
> > > k,md
> > > p-rdma.yaml: ignoring, error in schema: properties: compatible
> > > Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-
> > > rdma.example.dtb:0:0: /example-0/soc/rdma@...04000: failed to
> > > match
> > > any schema with compatible: ['mediatek,mt8195-vdo1-rdma']
> > > 
> > > 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.
> > > 
> > 
> > Hello Rob,
> > 
> > We found that if we write this, and the error will disapear:
> >  properties:
> >    compatible:
> > -    - const: mediatek,mt8195-vdo1-rdma
> > +    items:
> > +      - const: mediatek,mt8195-vdo1-rdma
> > 
> > But from Krzysztof's review[1], he adviced us to drop items.
> > 
> > Is there any suggsetion for this error or do we have any
> > misunderstanding?
> 
> The '-' is important.
> 
> compatible:
>   const: mediatek,mt8195-vdo1-rdma

Hello Rob,

Thanks for hint.
I will update this and resend.

BRs,
Rex