Re: [PATCH v2] dt-bindings: display: mediatek: Compatible list cleanup

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Il 02/03/23 15:12, Yassine Oudjana ha scritto:
From: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>

Several DT bindings of MediaTek display blocks make unnecessary use of
"oneOf" and "items". Remove them and replace them with enums where
necessary.

Signed-off-by: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>
---
Changes since v1:
- Leave enums with 1 element as they are.

  .../bindings/display/mediatek/mediatek,ccorr.yaml   |  7 +++----
  .../bindings/display/mediatek/mediatek,color.yaml   | 10 ++++------
  .../bindings/display/mediatek/mediatek,dither.yaml  |  3 +--
  .../bindings/display/mediatek/mediatek,dsc.yaml     |  4 +---
  .../bindings/display/mediatek/mediatek,gamma.yaml   |  7 +++----
  .../bindings/display/mediatek/mediatek,merge.yaml   |  8 +++-----
  .../bindings/display/mediatek/mediatek,od.yaml      |  8 +++-----
  .../bindings/display/mediatek/mediatek,ovl-2l.yaml  |  7 +++----
  .../bindings/display/mediatek/mediatek,ovl.yaml     | 13 +++++--------
  .../display/mediatek/mediatek,postmask.yaml         |  3 +--
  .../bindings/display/mediatek/mediatek,rdma.yaml    | 13 +++++--------
  .../bindings/display/mediatek/mediatek,split.yaml   |  4 +---
  .../bindings/display/mediatek/mediatek,ufoe.yaml    |  4 +---
  .../bindings/display/mediatek/mediatek,wdma.yaml    |  4 +---
  14 files changed, 35 insertions(+), 60 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ccorr.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ccorr.yaml
index b04820c95b22..dc22bd522523 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ccorr.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ccorr.yaml
@@ -21,10 +21,9 @@ description: |
  properties:
    compatible:
      oneOf:
-      - items:
-          - const: mediatek,mt8183-disp-ccorr
-      - items:
-          - const: mediatek,mt8192-disp-ccorr
+      - enum:
+          - mediatek,mt8183-disp-ccorr
+          - mediatek,mt8192-disp-ccorr

This change is ok.

        - items:
            - enum:
                - mediatek,mt8188-disp-ccorr
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml
index 62306c88f485..d0ea77fc4b06 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,color.yaml
@@ -22,12 +22,10 @@ description: |
  properties:
    compatible:
      oneOf:
-      - items:
-          - const: mediatek,mt2701-disp-color
-      - items:
-          - const: mediatek,mt8167-disp-color
-      - items:
-          - const: mediatek,mt8173-disp-color
+      - enum:
+          - mediatek,mt2701-disp-color
+          - mediatek,mt8167-disp-color
+          - mediatek,mt8173-disp-color

OK.

        - items:
            - enum:
                - mediatek,mt7623-disp-color
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dither.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dither.yaml
index 5c7445c174e5..9d74de63fe63 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dither.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dither.yaml
@@ -22,8 +22,7 @@ description: |
  properties:
    compatible:
      oneOf:
-      - items:
-          - const: mediatek,mt8183-disp-dither
+      - const: mediatek,mt8183-disp-dither

OK.

        - items:
            - enum:
                - mediatek,mt8186-disp-dither
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml
index 49248864514b..37bf6bf4a1ab 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml
@@ -19,9 +19,7 @@ description: |
properties:
    compatible:
-    oneOf:
-      - items:
-          - const: mediatek,mt8195-disp-dsc
+    const: mediatek,mt8195-disp-dsc

This will grow, and you'll get devicetree declaring something like:

compatible = "mediatek,(different-new-chip)-disp-dsc";

and

compatible = "mediatek,(current-chip)-disp-dsc", "mediatek,mt8195-disp-dsc";

Note: Some smartphone SoCs (Dimensity series) do have the same disp-dsc as
the Chromebook variant MT8195! :-)

reg:
      maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,gamma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,gamma.yaml
index a5c6a91fac71..6c2be9d6840b 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,gamma.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,gamma.yaml
@@ -21,10 +21,9 @@ description: |
  properties:
    compatible:
      oneOf:
-      - items:
-          - const: mediatek,mt8173-disp-gamma
-      - items:
-          - const: mediatek,mt8183-disp-gamma
+      - enum:
+          - mediatek,mt8173-disp-gamma
+          - mediatek,mt8183-disp-gamma

This change is ok.

        - items:
            - enum:
                - mediatek,mt8186-disp-gamma
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
index 69ba75777dac..c474ee6fa05b 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,merge.yaml
@@ -20,11 +20,9 @@ description: |
properties:
    compatible:
-    oneOf:
-      - items:
-          - const: mediatek,mt8173-disp-merge
-      - items:
-          - const: mediatek,mt8195-disp-merge
+    enum:
+      - mediatek,mt8173-disp-merge
+      - mediatek,mt8195-disp-merge

I'm mostly sure that you (yes, you, Yassine) will sooner or later write a
devicetree node containing the following compatible string on merge0:

compatible = "mediatek,mt6735-disp-merge", "mediatek,mt8173-disp-merge";

Am I wrong? :-)

In that case, that `oneOf:` will have to return back to this file, so it's
not worth removing it.

reg:
      maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,od.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,od.yaml
index 853fcb9db2be..7e6bbf8b5c60 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,od.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,od.yaml
@@ -20,11 +20,9 @@ description: |
properties:
    compatible:
-    oneOf:
-      - items:
-          - const: mediatek,mt2712-disp-od
-      - items:
-          - const: mediatek,mt8173-disp-od
+    enum:
+      - mediatek,mt2712-disp-od
+      - mediatek,mt8173-disp-od

Same story with this one...

    reg:
      maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml
index 4e94f4e947ad..c7dd0ef02dcf 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml
@@ -21,10 +21,9 @@ description: |
  properties:
    compatible:
      oneOf:
-      - items:
-          - const: mediatek,mt8183-disp-ovl-2l
-      - items:
-          - const: mediatek,mt8192-disp-ovl-2l
+      - enum:
+          - mediatek,mt8183-disp-ovl-2l
+          - mediatek,mt8192-disp-ovl-2l

This change is ok.

        - items:
            - enum:
                - mediatek,mt8186-disp-ovl-2l
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
index 065e526f950e..92e320d54ba2 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
@@ -21,14 +21,11 @@ description: |
  properties:
    compatible:
      oneOf:
-      - items:
-          - const: mediatek,mt2701-disp-ovl
-      - items:
-          - const: mediatek,mt8173-disp-ovl
-      - items:
-          - const: mediatek,mt8183-disp-ovl
-      - items:
-          - const: mediatek,mt8192-disp-ovl
+      - enum:
+          - mediatek,mt2701-disp-ovl
+          - mediatek,mt8173-disp-ovl
+          - mediatek,mt8183-disp-ovl
+          - mediatek,mt8192-disp-ovl

This is ok too.

        - items:
            - enum:
                - mediatek,mt7623-disp-ovl
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,postmask.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,postmask.yaml
index 27de64495401..12ec410bb921 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,postmask.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,postmask.yaml
@@ -21,8 +21,7 @@ description: |
  properties:
    compatible:
      oneOf:
-      - items:
-          - const: mediatek,mt8192-disp-postmask
+      - const: mediatek,mt8192-disp-postmask

Should be fine as well.

        - items:
            - enum:
                - mediatek,mt8186-disp-postmask
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml
index 3ade2ece3fed..42059efad45d 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml
@@ -23,14 +23,11 @@ description: |
  properties:
    compatible:
      oneOf:
-      - items:
-          - const: mediatek,mt2701-disp-rdma
-      - items:
-          - const: mediatek,mt8173-disp-rdma
-      - items:
-          - const: mediatek,mt8183-disp-rdma
-      - items:
-          - const: mediatek,mt8195-disp-rdma
+      - enum:
+          - mediatek,mt2701-disp-rdma
+          - mediatek,mt8173-disp-rdma
+          - mediatek,mt8183-disp-rdma
+          - mediatek,mt8195-disp-rdma

OK.

        - items:
            - enum:
                - mediatek,mt8188-disp-rdma
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
index 35ace1f322e8..54b7b0531144 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,split.yaml
@@ -20,9 +20,7 @@ description: |
properties:
    compatible:
-    oneOf:
-      - items:
-          - const: mediatek,mt8173-disp-split
+    const: mediatek,mt8173-disp-split


compatible = "mediatek,mt6795-disp-split", "mediatek,mt8173-disp-split";

I have exactly that in my local devicetree for Xperia M5 (not upstream yet) so
no, I wouldn't do that :-)

    reg:
      maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml
index b8bb135fe96b..87523b45a210 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ufoe.yaml
@@ -21,9 +21,7 @@ description: |
properties:
    compatible:
-    oneOf:
-      - items:
-          - const: mediatek,mt8173-disp-ufoe
+    const: mediatek,mt8173-disp-ufoe

Same, and I think UFOE is present on your MT6735 as well.

    reg:
      maxItems: 1
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
index 7d7cc1ab526b..52f233fe1c0f 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
@@ -20,9 +20,7 @@ description: |
properties:
    compatible:
-    oneOf:
-      - items:
-          - const: mediatek,mt8173-disp-wdma
+    const: mediatek,mt8173-disp-wdma

This is present on all MediaTek SoCs - literally. The issue is that the driver
currently does not support command mode panels for real, so this binding is...
...well, somehow in forgotten-land...

I would hope that command mode panels get implemented soon(er-than-later), but
I'll leave the choice to you and Krzysztof - I'm only providing the information
here. :-)

    reg:
      maxItems: 1

Thanks for the effort!

Cheers,
Angelo




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