[PATCH 1/9] dt-bindings: usb: Add Tegra238 XUSB host controller support

[Jon Hunter <jonathanh@nvidia.com>]

Add a compatible string for the Tegra238 XUSB host controller. The
Tegra238 XUSB host controller is similar to that found on the Tegra234
device but only supports 3 PHYs compared to the 4 PHYs on the Tegra234.
Hence, the binding is also updated to limit the number of PHYs that can
be specified for the Tegra238 device.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
 .../bindings/usb/nvidia,tegra234-xusb.yaml           | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra234-xusb.yaml b/Documentation/devicetree/bindings/usb/nvidia,tegra234-xusb.yaml
index 3f56110be915..9d605db7e77f 100644
--- a/Documentation/devicetree/bindings/usb/nvidia,tegra234-xusb.yaml
+++ b/Documentation/devicetree/bindings/usb/nvidia,tegra234-xusb.yaml
@@ -19,6 +19,7 @@ properties:
   compatible:
     enum:
       - nvidia,tegra234-xusb
+      - nvidia,tegra238-xusb
       - nvidia,tegra264-xusb
 
   reg:
@@ -154,6 +155,25 @@ properties:
 
 allOf:
   - $ref: usb-xhci.yaml
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: nvidia,tegra238-xusb
+    then:
+      properties:
+        phys:
+          maxItems: 6
+        phy-names:
+          maxItems: 6
+          items:
+            enum:
+              - usb2-0
+              - usb2-1
+              - usb2-2
+              - usb3-0
+              - usb3-1
+              - usb3-2
 
   - if:
       properties:

-- 
2.43.0