[PATCH v2] dt-bindings: display: st, stm32-ltdc: Document stm32mp25 compatible

[Yannick Fertre]

Add "st,stm32mp25-ltdc" compatible for SOC MP25. This new SOC introduce
new clocks (bus, ref & lvds). Bus clock was separated from lcd clock.
New sources are possible for lcd clock (lvds / ref).

Signed-off-by: Yannick Fertre <yannick.fertre at foss.st.com>
---
Changes in v2: Rework clock property.
 .../bindings/display/st,stm32-ltdc.yaml       | 51 +++++++++++++++----
 1 file changed, 41 insertions(+), 10 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml b/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
index d6ea4d62a2cf..cc578ad9f040 100644
--- a/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
+++ b/Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
@@ -12,7 +12,9 @@ maintainers:
 
 properties:
   compatible:
-    const: st,stm32-ltdc
+    enum:
+      - st,stm32-ltdc
+      - st,stm32mp25-ltdc
 
   reg:
     maxItems: 1
@@ -23,13 +25,6 @@ properties:
       - description: errors interrupt line.
     minItems: 1
 
-  clocks:
-    maxItems: 1
-
-  clock-names:
-    items:
-      - const: lcd
-
   resets:
     maxItems: 1
 
@@ -46,11 +41,47 @@ required:
   - compatible
   - reg
   - interrupts
-  - clocks
-  - clock-names
   - resets
   - port
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - st,stm32mp25-ltdc
+    then:
+      properties:
+        clocks:
+          maxItems: 4
+          items:
+            - description: Lcd Clock
+            - description: Bus Clock
+            - description: Reference Clock
+            - description: Lvds Clock
+        clock-names:
+          items:
+            - const: lcd
+            - const: bus
+            - const: ref
+            - const: lvds
+      required:
+        - clocks
+        - clock-names
+    else:
+      properties:
+        clocks:
+          maxItems: 1
+          items:
+            - description: Lcd Clock
+        clock-names:
+          items:
+            - const: lcd
+      required:
+        - clocks
+        - clock-names
+
 additionalProperties: false
 
 examples:
-- 
2.34.1