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

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Message-ID: <20230414083019.cpomx37tax4ibe5u@pengutronix.de>
Date:   Fri, 14 Apr 2023 10:30:19 +0200
From:   Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>, matthias.bgg@...il.com,
        p.zabel@...gutronix.de, airlied@...il.com, daniel@...ll.ch,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        jassisinghbrar@...il.com, chunfeng.yun@...iatek.com,
        vkoul@...nel.org, kishon@...nel.org, thierry.reding@...il.com,
        chunkuang.hu@...nel.org, ck.hu@...iatek.com,
        jitao.shi@...iatek.com, xinlei.lee@...iatek.com,
        houlong.wei@...iatek.com, dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-phy@...ts.infradead.org, linux-pwm@...r.kernel.org,
        kernel@...labora.com, phone-devel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH 01/27] dt-bindings: pwm: Add compatible for MediaTek
 MT6795

On Fri, Apr 14, 2023 at 10:21:05AM +0200, Krzysztof Kozlowski wrote:
> On 12/04/2023 13:27, 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(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml b/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml
> > index 0088bc8e7c54..153e146df7d4 100644
> > --- a/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml
> > +++ b/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml
> > @@ -22,7 +22,9 @@ properties:
> >            - mediatek,mt8173-disp-pwm
> >            - mediatek,mt8183-disp-pwm
> >        - items:
> > -          - const: mediatek,mt8167-disp-pwm
> > +          - enum:
> > +              - mediatek,mt6795-disp-pwm
> > +              - mediatek,mt8167-disp-pwm
> 
> This does not look correct. You do not add compatible, you replace
> breaking all mt8167-disp-pwm. At least it looks like this from context.

I thought the old semantic to be:

	"mediatek,mt8167-disp-pwm"

and the new

	"mediatek,mt6795-disp-pwm" or "mediatek,mt8167-disp-pwm"

. What am I missing?

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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