dt-bindings: display/msm: hdmi: add qcom,hdmi-tx-8998

HDMI TX block embedded in the APQ8098.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Marc Gonzalez <mgonzalez@freebox.fr>
Patchwork: https://patchwork.freedesktop.org/patch/605638/
Link: https://lore.kernel.org/r/20240724-hdmi-tx-v7-2-e44a20553464@freebox.fr
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Documentation/devicetree/bindings/display/msm/hdmi.yaml

@@ -19,14 +19,15 @@ properties:
       - qcom,hdmi-tx-8974
       - qcom,hdmi-tx-8994
       - qcom,hdmi-tx-8996
+      - qcom,hdmi-tx-8998
 
   clocks:
     minItems: 1
-    maxItems: 5
+    maxItems: 8
 
   clock-names:
     minItems: 1
-    maxItems: 5
+    maxItems: 8
 
   reg:
     minItems: 1
@@ -142,6 +143,7 @@ allOf:
       properties:
         clocks:
           minItems: 5
+          maxItems: 5
         clock-names:
           items:
             - const: mdp_core
@@ -151,6 +153,28 @@ allOf:
             - const: extp
         hdmi-mux-supplies: false
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,hdmi-tx-8998
+    then:
+      properties:
+        clocks:
+          minItems: 8
+          maxItems: 8
+        clock-names:
+          items:
+            - const: mdp_core
+            - const: iface
+            - const: core
+            - const: alt_iface
+            - const: extp
+            - const: bus
+            - const: mnoc
+            - const: iface_mmss
+
 additionalProperties: false
 
 examples: