[PATCH 2/3] dt-bindings: phy: qcom,snps-eusb2-phy: Add Nord bus clock

[Shawn Guo]

On Nord, the eUSB2 PHY registers are reached through the AHB2PHY_0
bridge, which is gated by NE_GCC_AHB2PHY_CLK. Allow an optional
second "bus" clock for the AHB2PHY bridge, require it for
qcom,nord-snps-eusb2-phy, and keep other compatibles at the single
"ref" clock.

Signed-off-by: Shawn Guo <shengchao.guo@xxxxxxxxxxxxxxxx>
---
 .../bindings/phy/qcom,snps-eusb2-phy.yaml     | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-phy.yaml
index 931cd0e7d297..67f2a587e65c 100644
--- a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-phy.yaml
@@ -34,12 +34,16 @@ properties:
     const: 0
 
   clocks:
+    minItems: 1
     items:
       - description: ref
+      - description: AHB2PHY bridge clock for register access
 
   clock-names:
+    minItems: 1
     items:
       - const: ref
+      - const: bus
 
   resets:
     maxItems: 1
@@ -77,6 +81,24 @@ allOf:
       required:
         - resets
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: qcom,nord-snps-eusb2-phy
+    then:
+      properties:
+        clocks:
+          minItems: 2
+        clock-names:
+          minItems: 2
+    else:
+      properties:
+        clocks:
+          maxItems: 1
+        clock-names:
+          maxItems: 1
+
 additionalProperties: false
 
 examples:
-- 
2.43.0