[PATCH v3 1/3] dt-bindings: display: samsung,exynos7-decon: add properties for iommus and ports

[Kaustabh Chakraborty]

On 2025-06-27 07:50, Krzysztof Kozlowski wrote:
> On Fri, Jun 27, 2025 at 12:50:28AM +0530, Kaustabh Chakraborty wrote:
>> Similar to FIMD and Exynos5433's DECON, the Exynos7 DECON hardware:
>> - May optionally require an IOMMU to initialize a display region.
>> - May require a port connection to another block, say an MIC or a DSI
>>   master.
>> 
>> Document these bindings in the devicetree schema.
>> 
>> Signed-off-by: Kaustabh Chakraborty <kauschluss at disroot.org>
>> ---
>>  .../bindings/display/samsung/samsung,exynos7-decon.yaml           | 8 
>> ++++++++
>>  1 file changed, 8 insertions(+)
>> 
>> diff --git 
>> a/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml 
>> b/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml
>> index 
>> 53916e4c95d8c0369138941a556c23f5d42fbd39..1e9500c86590d555cfa6f04790e2b64da291b78b 
>> 100644
>> --- 
>> a/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml
>> +++ 
>> b/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml
>> @@ -80,6 +80,14 @@ properties:
>>        - const: vsync
>>        - const: lcd_sys
>> 
>> +  iommus:
>> +    maxItems: 1
>> +
>> +  ports:
>> +    $ref: /schemas/graph.yaml#/properties/ports
>> +    description:
>> +      Contains a port which is connected to mic or dsim node.
> 
> You need to list and describe the ports.

-    description:
-      Contains a port which is connected to mic or dsim node.
+    properties:
+      port at 0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          Input port which is connected to either a Mobile Image
+          Compressor (MIC) or a DSI Master device.

I assume you want something like this?
Is the formatting correct? Should there be a space between
ports:$ref and ports:properties?

> 
> Best regards,
> Krzysztof