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Date: Tue, 22 Nov 2022 16:48:45 +0100
From: Matthias Brugger <matthias.bgg@...il.com>
To: Nancy Lin (林欣螢) <Nancy.Lin@...iatek.com>,
"robh+dt@...nel.org" <robh+dt@...nel.org>,
Jason-JH Lin (林睿祥)
<Jason-JH.Lin@...iatek.com>,
"chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
"linux@...ck-us.net" <linux@...ck-us.net>,
"p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
"wim@...ux-watchdog.org" <wim@...ux-watchdog.org>,
"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>,
"linux-mediatek@...ts.infradead.org"
<linux-mediatek@...ts.infradead.org>,
Singo Chang (張興國)
<Singo.Chang@...iatek.com>,
"nathan@...nel.org" <nathan@...nel.org>,
Yongqiang Niu (牛永强)
<yongqiang.niu@...iatek.com>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.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 22/11/2022 11:51, Nancy Lin (林欣螢) wrote:
> Dear Matthias,
>
> Thanks for the review.
>
> On Thu, 2022-11-10 at 14:10 +0100, Matthias Brugger wrote:
>>
>> On 09/11/2022 06:10, Jason-JH Lin (林睿祥) wrote:
>> > 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.y
>> > > aml
>> > > b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.y
>> > > aml
>> > > index eb451bec23d3d..8e9c4f4d7c389 100644
>> > > ---
>> > > a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.y
>> > > aml
>> > > +++
>> > > b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.y
>> > > aml
>> > > @@ -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://urldefense.com/v3/__https://patchwork.kernel.org/project/linux-mediatek/patch/20220927152704.12018-2-jason-jh.lin@mediatek.com/__;!!CTRNKA9wMg0ARbw!zRdbIyyAsfqob2kapMAcKYATAguhEV0x0qE5cTOAcWUNhzeAbMHzZoos_2QzUCxS$
>> >
>> > 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
>> >
>>
>> No, vdosys1 must not have mediatek,mt8195-mmsys fallback.
>>
>> Regards,
>> Matthias
>>
>
> I will fix it and add the following vdosys1 binding base on [1].
>
> - description: vdosys0 and vdosys1 are 2 display HW pipelines,
> so mt8195 binding should be deprecated.
> deprecated: true
> items:
> - const: mediatek,mt8195-mmsys
> - const: syscon
> - items:
> - const: mediatek,mt7623-mmsys
> - const: mediatek,mt2701-mmsys
> - const: syscon
> - items:
> - const: mediatek,mt8195-vdosys0
> - const: mediatek,mt8195-mmsys
> - const: syscon
> + - items:
> + - const: mediatek,mt8195-vdosys1
> + - const: syscon
>
Looks good, thanks
Matthias
> [1]
> https://kernel.googlesource.com/pub/scm/linux/kernel/git/matthias.bgg/linux/+/b237efd47df7d25b78c306e90b97c5aa0ff4c4fc/Documentation/devicetree/bindings/arm/mediatek/mediatek%2Cmmsys.yaml
>
> Regards,
> Nancy
>
>
>> > Regards,
>> > Jason-JH.Lin
>> >
>> >
>> >
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