regulator: dt-bindings: qcom,qca6390-pmu: document WCN6855

Add description of the PMU of the WCN6855 model.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://patch.msgid.link/20240813185827.154779-2-brgl@bgdev.plSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/regulator/qcom,qca6390-pmu.yaml

@@ -18,6 +18,7 @@ properties:
   compatible:
     enum:
       - qcom,qca6390-pmu
+      - qcom,wcn6855-pmu
       - qcom,wcn7850-pmu
 
   vdd-supply:
@@ -104,6 +105,21 @@ allOf:
         - vddpcie1p3-supply
         - vddpcie1p9-supply
         - vddio-supply
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: qcom,wcn6855-pmu
+    then:
+      required:
+        - vddio-supply
+        - vddaon-supply
+        - vddpmu-supply
+        - vddrfa0p95-supply
+        - vddrfa1p3-supply
+        - vddrfa1p9-supply
+        - vddpcie1p3-supply
+        - vddpcie1p9-supply
   - if:
       properties:
         compatible: