[PATCH 2/3] dt-bindings: usb: ti,keystone-dwc3.yaml: Add USB3.0 PHY property

[Roger Quadros]

AM654 SoC requires USB3.0 PHY to be turned on before the USB controller.
For this SoC, the 'phys' property is used to provide the USB3.0
reference.

Signed-off-by: Roger Quadros <rogerq@xxxxxx>
---
 .../bindings/usb/ti,keystone-dwc3.yaml        | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml b/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
index 14d2fe329b93..51c0ab01b0bc 100644
--- a/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/ti,keystone-dwc3.yaml
@@ -34,6 +34,16 @@ properties:
       value. This property is as per the binding,
       Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
 
+  phys:
+    description:
+      PHY specifier for the USB3.0 PHY. Some SoCs need the USB3.0 PHY
+      to be turned on before the controller.
+      Documentation/devicetree/bindings/phy/phy-bindings.txt
+
+  phy-names:
+    items:
+      - const: "usb3-phy"
+
   dwc3:
     description: This is the node representing the DWC3 controller instance
       Documentation/devicetree/bindings/usb/dwc3.txt
@@ -44,6 +54,17 @@ required:
   - interrupts
   - clocks
 
+if:
+  properties:
+    compatible:
+      contains:
+        const: "ti,am654-dwc3"
+
+then:
+  required:
+    - phys
+    - phy-names
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
-- 
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