linux-kernel - Re: [PATCH v2 2/6] dt-bindings: memory: mtk-smi: Fix the larb clock/clock-names dtbs warning

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Date:   Thu, 13 Jan 2022 14:06:20 +0800
From:   Yong Wu <yong.wu@...iatek.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Rob Herring <robh+dt@...nel.org>
CC:     Matthias Brugger <matthias.bgg@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Tomasz Figa <tfiga@...omium.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <iommu@...ts.linux-foundation.org>, <youlin.pei@...iatek.com>,
        <anan.sun@...iatek.com>, <lc.kan@...iatek.com>,
        <yi.kuo@...iatek.com>, <anthony.huang@...iatek.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH v2 2/6] dt-bindings: memory: mtk-smi: Fix the larb
 clock/clock-names dtbs warning

On Wed, 2022-01-12 at 11:18 +0100, Krzysztof Kozlowski wrote:
> On 11/01/2022 07:39, Yong Wu wrote:
> > Mute the warning from "make dtbs_check":
> > 
> > larb@...17000: clock-names: ['apb', 'smi'] is too short
> > 	arch/arm64/boot/dts/mediatek/mt8183-evb.dt.yaml
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-
> > burnet.dt.yaml
> > 	...
> > 
> > larb@...10000: clock-names: ['apb', 'smi'] is too short
> > 	arch/arm64/boot/dts/mediatek/mt8183-evb.dt.yaml
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-
> > burnet.dt.yaml
> > 
> > larb@...10000: clock-names: ['apb', 'smi'] is too short
> > 	arch/arm64/boot/dts/mediatek/mt8183-evb.dt.yaml
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-
> > burnet.dt.yaml
> > 
> > If a platform's larb supports gals, there will be some larbs have
> > one
> > more "gals" clock while the others still only need "apb"/"smi"
> > clocks,
> > then the minItems for clock and clock-names are 2.
> > 
> > Fixes: 27bb0e42855a ("dt-bindings: memory: mediatek: Convert SMI to
> > DT schema")
> > Signed-off-by: Yong Wu <yong.wu@...iatek.com>
> > ---
> >  .../bindings/memory-controllers/mediatek,smi-larb.yaml      | 6
> > +++---
> >  1 file changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/memory-
> > controllers/mediatek,smi-larb.yaml
> > b/Documentation/devicetree/bindings/memory-
> > controllers/mediatek,smi-larb.yaml
> > index 80907e357892..884c0c74e5e4 100644
> > --- a/Documentation/devicetree/bindings/memory-
> > controllers/mediatek,smi-larb.yaml
> > +++ b/Documentation/devicetree/bindings/memory-
> > controllers/mediatek,smi-larb.yaml
> > @@ -80,10 +80,10 @@ allOf:
> >      then:
> >        properties:
> >          clock:
> 
> Separate patch:
> This should be clocks. The same in second if. Now it is simply not
> working...
> 
> > -          items:
> 
> Putting min/maxItems under items is wrong. The second if also needs
> the
> fixing. Please make it a separate patch before this one.

Oh. I will use a new patch for renaming "clock" to "clocks" and
removing the "items".

Thanks.

> 
> The schema was clearly not tested before...
> 
> 
> > -            minItems: 3
> > -            maxItems: 3
> > +          minItems: 2
> > +          maxItems: 3
> >          clock-names:
> > +          minItems: 2
> >            items:
> >              - const: apb
> >              - const: smi
> > 
> 
> 
> Best regards,
> Krzysztof