[PATCH v3 1/3] dt-bindings: phy: tegra194: Add compatible for Tegra238

[Jon Hunter]

The Tegra238 XUSB pad controller is similar to that found on the
Tegra194 and Tegra234, but only has three USB2 ports and three USB3
ports.

Add the Tegra238 compatible string for the XUSB pad controller and
constrain the binding so that a Tegra238 device tree can only have three
USB2 and three USB3 ports.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at oss.qualcomm.com>
Signed-off-by: Jon Hunter <jonathanh at nvidia.com>
---
 .../bindings/phy/nvidia,tegra194-xusb-padctl.yaml  | 38 ++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/nvidia,tegra194-xusb-padctl.yaml b/Documentation/devicetree/bindings/phy/nvidia,tegra194-xusb-padctl.yaml
index f6fe3c90b5b0..fbafe8eb150b 100644
--- a/Documentation/devicetree/bindings/phy/nvidia,tegra194-xusb-padctl.yaml
+++ b/Documentation/devicetree/bindings/phy/nvidia,tegra194-xusb-padctl.yaml
@@ -45,6 +45,7 @@ properties:
     enum:
       - nvidia,tegra194-xusb-padctl
       - nvidia,tegra234-xusb-padctl
+      - nvidia,tegra238-xusb-padctl
       - nvidia,tegra264-xusb-padctl
 
   reg:
@@ -542,6 +543,43 @@ properties:
             description: connection to a USB Type C controller
             $ref: /schemas/graph.yaml#/properties/port
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: nvidia,tegra238-xusb-padctl
+    then:
+      properties:
+        pads:
+          properties:
+            usb2:
+              properties:
+                lanes:
+                  properties:
+                    usb2-3: false
+            usb3:
+              properties:
+                lanes:
+                  properties:
+                    usb3-3: false
+        ports:
+          properties:
+            usb2-3: false
+            usb3-0:
+              properties:
+                nvidia,usb2-companion:
+                  enum: [ 0, 1, 2 ]
+            usb3-1:
+              properties:
+                nvidia,usb2-companion:
+                  enum: [ 0, 1, 2 ]
+            usb3-2:
+              properties:
+                nvidia,usb2-companion:
+                  enum: [ 0, 1, 2 ]
+            usb3-3: false
+
 additionalProperties: false
 
 required:

-- 
2.43.0