linux-kernel - [PATCH 2/7] dt-bindings: display: mediatek: dpi: add binding for MT8365

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Message-Id: <20220530201436.902505-2-fparent@baylibre.com>
Date:   Mon, 30 May 2022 22:14:31 +0200
From:   Fabien Parent <fparent@...libre.com>
To:     matthias.bgg@...il.com, ck.hu@...iatek.com, jitao.shi@...iatek.com,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org
Cc:     chunkuang.hu@...nel.org, p.zabel@...gutronix.de, airlied@...ux.ie,
        daniel@...ll.ch, dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Fabien Parent <fparent@...libre.com>
Subject: [PATCH 2/7] dt-bindings: display: mediatek: dpi: add binding for MT8365

DPI for MT8365 is compatible with MT8192 but requires an additional
clock. Modify the documentation to requires this clock only on MT8365 SoCs.

Signed-off-by: Fabien Parent <fparent@...libre.com>
---
 .../display/mediatek/mediatek,dpi.yaml        | 44 ++++++++++++++++---
 1 file changed, 37 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
index caf4c88708f4..c9c9f4d5ebe7 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
@@ -17,13 +17,18 @@ description: |
 
 properties:
   compatible:
-    enum:
-      - mediatek,mt2701-dpi
-      - mediatek,mt7623-dpi
-      - mediatek,mt8173-dpi
-      - mediatek,mt8183-dpi
-      - mediatek,mt8186-dpi
-      - mediatek,mt8192-dpi
+    oneOf:
+      - enum:
+          - mediatek,mt2701-dpi
+          - mediatek,mt7623-dpi
+          - mediatek,mt8173-dpi
+          - mediatek,mt8183-dpi
+          - mediatek,mt8186-dpi
+          - mediatek,mt8192-dpi
+      - items:
+          - enum:
+              - mediatek,mt8365-dpi
+          - const: mediatek,mt8192-dpi
 
   reg:
     maxItems: 1
@@ -32,16 +37,20 @@ properties:
     maxItems: 1
 
   clocks:
+    minItems: 3
     items:
       - description: Pixel Clock
       - description: Engine Clock
       - description: DPI PLL
+      - description: DPI Clock
 
   clock-names:
+    minItems: 3
     items:
       - const: pixel
       - const: engine
       - const: pll
+      - const: dpi
 
   pinctrl-0: true
   pinctrl-1: true
@@ -71,6 +80,27 @@ required:
 
 additionalProperties: false
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt8365-dpi
+
+    then:
+      properties:
+        clocks:
+          maxItems: 4
+        clock-names:
+          maxItems: 4
+
+    else:
+      properties:
+        clocks:
+          maxItems: 3
+        clock-names:
+          maxItems: 3
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
-- 
2.36.1