[PATCH v4 1/3] dt-bindings: display: mediatek: dpi: Add power domains

[Rohit Agarwal]

Add power domain binding to the mediatek DPI controller
for MT8186.
Also, add power domain binding for other SoCs like
MT6795 and MT8173 that already had power domain property.

Signed-off-by: Rohit Agarwal <rohiagar at chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
Reviewed-by: CK Hu <ck.hu at mediatek.com>
---
 .../bindings/display/mediatek/mediatek,dpi.yaml | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
index 5ca7679d5427..3a82aec9021c 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
@@ -62,6 +62,9 @@ properties:
       - const: default
       - const: sleep
 
+  power-domains:
+    maxItems: 1
+
   port:
     $ref: /schemas/graph.yaml#/properties/port
     description:
@@ -76,6 +79,20 @@ required:
   - clock-names
   - port
 
+allOf:
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - mediatek,mt6795-dpi
+                - mediatek,mt8173-dpi
+                - mediatek,mt8186-dpi
+    then:
+      properties:
+        power-domains: false
+
 additionalProperties: false
 
 examples:
-- 
2.46.0.469.g59c65b2a67-goog