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

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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@xxxxxxxxxxxx>
> Reviewed-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
> ---
>   .../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@xxxxxxxxxx/

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@xxxxxxxxxxxx/
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

Regards,
Jason-JH.Lin



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