[PATCH v2 07/11] dt-bindings: usb: generic-ehci: Document RZ/G2L SoC bindings

[Biju Das <biju.das.jz@xxxxxxxxxxxxxx>]

Renesas RZ/G2L SoC has USBPHY Control and USB2.0 PHY module. We need to
turn on both these phy modules before accessing host registers.

Apart from this, document the optional property dr_mode present on both
RZ/G2 and R-Car Gen3 SoCs.

Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
 .../devicetree/bindings/usb/generic-ehci.yaml | 33 +++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/generic-ehci.yaml b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
index 8089dc956ba3..822e667e28a5 100644
--- a/Documentation/devicetree/bindings/usb/generic-ehci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
@@ -22,6 +22,27 @@ allOf:
         reg:
           maxItems: 1
 
+  - if:
+      properties:
+        compatible:
+            contains:
+              const: renesas,r9a07g044-ehci
+    then:
+      properties:
+        phys:
+          maxItems: 2
+        phy-names:
+          items:
+            - const: usbphyctrl
+            - const: usb
+    else:
+      properties:
+        phys:
+          maxItems: 1
+        phy-names:
+          items:
+            - const: usb
+
 properties:
   compatible:
     oneOf:
@@ -57,6 +78,7 @@ properties:
               - ibm,476gtr-ehci
               - nxp,lpc1850-ehci
               - qca,ar7100-ehci
+              - renesas,r9a07g044-ehci
               - snps,hsdk-v1.0-ehci
               - socionext,uniphier-ehci
           - const: generic-ehci
@@ -134,14 +156,21 @@ properties:
       Phandle of a companion.
 
   phys:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   phy-names:
-    const: usb
+    minItems: 1
+    maxItems: 2
 
   iommus:
     maxItems: 1
 
+  dr_mode:
+    enum:
+      - host
+      - otg
+
 required:
   - compatible
   - reg
-- 
2.17.1