linux-kernel - Re: [PATCH 01/27] dt-bindings: pwm: Add compatible for MediaTek MT6795

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Message-ID: <20230418005830.GA3802030-robh@kernel.org>
Date:   Mon, 17 Apr 2023 19:58:30 -0500
From:   Rob Herring <robh@...nel.org>
To:     Matthias Brugger <matthias.bgg@...il.com>
Cc:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>, p.zabel@...gutronix.de,
        linux-pwm@...r.kernel.org, kernel@...labora.com,
        chunkuang.hu@...nel.org, linux-phy@...ts.infradead.org,
        ck.hu@...iatek.com, jitao.shi@...iatek.com,
        houlong.wei@...iatek.com, linux-kernel@...r.kernel.org,
        phone-devel@...r.kernel.org, vkoul@...nel.org,
        chunfeng.yun@...iatek.com, daniel@...ll.ch,
        linux-mediatek@...ts.infradead.org, xinlei.lee@...iatek.com,
        airlied@...il.com, u.kleine-koenig@...gutronix.de,
        linux-arm-kernel@...ts.infradead.org,
        krzysztof.kozlowski+dt@...aro.org, kishon@...nel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, thierry.reding@...il.com,
        devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        jassisinghbrar@...il.com
Subject: Re: [PATCH 01/27] dt-bindings: pwm: Add compatible for MediaTek
 MT6795

On Thu, Apr 13, 2023 at 10:52:28AM +0200, Matthias Brugger wrote:
> 
> 
> On 12/04/2023 23:03, Rob Herring wrote:
> > 
> > On Wed, 12 Apr 2023 13:27:13 +0200, AngeloGioacchino Del Regno wrote:
> > > Add a compatible string for MediaTek Helio X10 MT6795's display PWM
> > > block: this is the same as MT8173.
> > > 
> > > Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> > > ---
> > >   Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml | 4 +++-
> > >   1 file changed, 3 insertions(+), 1 deletion(-)
> > > 
> > 
> > Running 'make dtbs_check' with the schema in this patch gives the
> > following warnings. Consider if they are expected or the schema is
> > incorrect. These may not be new warnings.
> > 
> 
> These are not new warnings. I think we should address them in a different
> patch. In my opinion it shouldn't block this patch. In the end it only add
> as compatible here.

I disagree if it's the schema that needs fixing. From the looks of 
it, I'd say it's probably at least some schema fixes needed.

> 
> Regards,
> Matthias
> 
> > Note that it is not yet a requirement to have 0 warnings for dtbs_check.
> > This will change in the future.
> > 
> > Full log is available here: https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230412112739.160376-2-angelogioacchino.delregno@collabora.com
> > 
> > 
> > pwm@...0e000: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+'

Are you saying the MT6795 has no power-domains?

> > 	arch/arm64/boot/dts/mediatek/mt8183-evb.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-burnet.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-cozmo.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-damu.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel14.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel14-sku2.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku1.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku6.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-fennel-sku7.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-juniper-sku16.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-kappa.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-kenzo.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-willow-sku0.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-willow-sku1.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-kakadu.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-kakadu-sku22.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-kodama-sku16.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-kodama-sku272.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-kodama-sku288.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-kodama-sku32.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-krane-sku0.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-kukui-krane-sku176.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dtb
> > 
> > pwm@...0a000: compatible: 'oneOf' conditional failed, one must be fixed:
> > 	arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dtb
> > 	arch/arm/boot/dts/mt7623n-rfb-emmc.dtb
> > 
> > pwm@...1e000: compatible: 'oneOf' conditional failed, one must be fixed:
> > 	arch/arm64/boot/dts/mediatek/mt8173-elm.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8173-elm-hana-rev7.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8173-evb.dtb
> > 
> > pwm@...1f000: compatible: 'oneOf' conditional failed, one must be fixed:
> > 	arch/arm64/boot/dts/mediatek/mt8173-elm.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8173-elm-hana.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8173-elm-hana-rev7.dtb
> > 	arch/arm64/boot/dts/mediatek/mt8173-evb.dtb

The commit message says the MT6795 is the same as the MT8173. Which is 
wrong here, the dtb or the schema? 

Rob