linux-kernel - Re: [PATCH v28 01/11] dt-bindings: arm: mediatek: mmsys: add vdosys1 compatible for MT8195

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <f6d7eaa0b7e2a3ed6567692616ebc1304500806c.camel@mediatek.com>
Date:   Wed, 9 Nov 2022 05:10:38 +0000
From:   Jason-JH Lin (林睿祥) 
        <Jason-JH.Lin@...iatek.com>
To:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        "linux@...ck-us.net" <linux@...ck-us.net>,
        Nancy Lin (林欣螢) <Nancy.Lin@...iatek.com>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "wim@...ux-watchdog.org" <wim@...ux-watchdog.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "nfraprado@...labora.com" <nfraprado@...labora.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Yongqiang Niu (牛永强) 
        <yongqiang.niu@...iatek.com>,
        Singo Chang (張興國) 
        <Singo.Chang@...iatek.com>,
        "nathan@...nel.org" <nathan@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "daniel@...ll.ch" <daniel@...ll.ch>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        "llvm@...ts.linux.dev" <llvm@...ts.linux.dev>,
        "ndesaulniers@...gle.com" <ndesaulniers@...gle.com>
Subject: Re: [PATCH v28 01/11] dt-bindings: arm: mediatek: mmsys: add vdosys1
 compatible for MT8195

On Tue, 2022-11-08 at 18:46 +0100, Matthias Brugger wrote:
> 
> On 07/11/2022 08:22, Nancy.Lin wrote:
> > Add vdosys1 mmsys compatible for MT8195 platform.
> > 
> > For MT8195, VDOSYS0 and VDOSYS1 are 2 display HW pipelines binding
> > to
> > 2 different power domains, different clock drivers and different
> > mediatek-drm drivers.
> > 
> > Signed-off-by: Nancy.Lin <nancy.lin@...iatek.com>
> > Reviewed-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
> > ---
> >   .../devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml      | 4
> > +++-
> >   1 file changed, 3 insertions(+), 1 deletion(-)
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yam
> > l
> > b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yam
> > l
> > index 0711f1834fbd..aaabe2196185 100644
> > ---
> > a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yam
> > l
> > +++
> > b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yam
> > l
> > @@ -48,7 +48,9 @@ properties:
> >             - const: syscon
> >   
> >         - items:
> > -          - const: mediatek,mt8195-vdosys0
> > +          - enum:
> > +              - mediatek,mt8195-vdosys0
> > +              - mediatek,mt8195-vdosys1
> >             - const: mediatek,mt8195-mmsys
> >             - const: syscon
> >   
> 
> I think we had that several times already:
> 
https://lore.kernel.org/all/6bbe9527-ae48-30e0-fb45-519223a744d7@linaro.org/
> 
> We will something like this, but please check that this does not give
> any 
> errors/warnings:
> 
> diff --git
> a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml 
> b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
> index eb451bec23d3d..8e9c4f4d7c389 100644
> ---
> a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
> +++
> b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
> @@ -32,13 +32,22 @@ properties:
>                 - mediatek,mt8183-mmsys
>                 - mediatek,mt8186-mmsys
>                 - mediatek,mt8192-mmsys
> -              - mediatek,mt8195-mmsys
>                 - mediatek,mt8365-mmsys
>             - const: syscon
>         - items:
>             - const: mediatek,mt7623-mmsys
>             - const: mediatek,mt2701-mmsys
>             - const: syscon
> +      - items:
> +          - const: mediatek,mt8195-vdosys0
> +          - const: syscon
> +      - items:
> +          - const: mediatek,mt8195-vdosys1
> +          - const: syscon
> +      - items:
> +          - const: mediatek,mt8195-mmsys
> +          - const: syscon
> +      deprecated: true
> 
>     reg:
>       maxItems: 1

Hi Matthias,

As the vdosys0 previous reviewed patch:

https://patchwork.kernel.org/project/linux-mediatek/patch/20220927152704.12018-2-jason-jh.lin@mediatek.com/
Should I modify the vdosys0 items format like your example?

Or should vdosys1 add items format like vdosys0's previous patch?
    - items:
        - const: mediatek,mt8195-vdosys1
        - const: mediatek,mt8195-mmsys
        - const: syscon

Regards,
Jason-JH.Lin