For the QUSB2 PHY binding, keep the three regulator supplies required
except for legacy IPQ6018 nodes that do not describe the board rails.

Assisted-by: LLM
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 .../devicetree/bindings/phy/qcom,qusb2-phy.yaml | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml
index 001fd0ccc985..2516eab7f6d3 100644
--- a/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml
@@ -165,12 +165,23 @@ required:
   - "#phy-cells"
   - clocks
   - clock-names
-  - vdd-supply
-  - vdda-pll-supply
-  - vdda-phy-dpdm-supply
   - resets
 
 allOf:
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum: 
+                - qcom,ipq6018-qusb2-phy
+                - qcom,ipq8074-qusb2-phy
+    then:
+      required:
+        - vdd-supply
+        - vdda-pll-supply
+        - vdda-phy-dpdm-supply
+
   - if:
       not:
         properties:
-- 
2.53.0