linux-kernel - Aw: Re: [PATCH v3 5/5] arm: dts: mt7623: add display subsystem related device nodes

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Date:   Tue, 4 Aug 2020 17:38:43 +0200
From:   Frank Wunderlich <frank-w@...lic-files.de>
To:     Chun-Kuang Hu <chunkuang.hu@...nel.org>
Cc:     Frank Wunderlich <linux@...web.de>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Ryder Lee <ryder.lee@...iatek.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        chunhui dai <chunhui.dai@...iatek.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        CK Hu <ck.hu@...iatek.com>, Daniel Vetter <daniel@...ll.ch>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Bibby Hsieh <bibby.hsieh@...iatek.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Aw: Re: [PATCH v3 5/5] arm: dts: mt7623: add display subsystem
 related device nodes

> Gesendet: Dienstag, 04. August 2020 um 17:00 Uhr
> Von: "Chun-Kuang Hu" <chunkuang.hu@...nel.org>

> > +       display_components: dispsys@...00000 {
> > +               compatible = "mediatek,mt7623-mmsys",
> > +                            "mediatek,mt2701-mmsys";
>
> In mediatek,mmsys.txt [3], this should be:
>
> mmsys: syscon@...00000 {
>         compatible = "mediatek,mt7623-mmsys", "mediatek,mt2701-mmsys", "syscon"
>
> [3] https://www.kernel.org/doc/Documentation/devicetree/bindings/arm/mediatek/mediatek%2Cmmsys.txt

oh i see i can drop this because there is already a mmsys-node with the compatibles from documentation.
only powerdomain is missing, but this seems not be needed (hdmi works without this "display_components" node)...

    mmsys: syscon@...00000 {
        compatible = "mediatek,mt7623-mmsys",
                 "mediatek,mt2701-mmsys",
                 "syscon";
        reg = <0 0x14000000 0 0x1000>;
        #clock-cells = <1>;
    };

    display_components: dispsys@...00000 {
        compatible = "mediatek,mt7623-mmsys",
                 "mediatek,mt2701-mmsys";
        reg = <0 0x14000000 0 0x1000>;
        power-domains = <&scpsys MT2701_POWER_DOMAIN_DISP>;
    };