[PATCH v7 2/9] dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G3L support

From: Biju Das <[email protected]>

Document Renesas RZ/G3L (r9a08g046) USB PHY controller bindings.
The RZ/G3L USB PHY block is similar to RZ/G3S but differs in that each
port has its own OTG controller, whereas RZ/G3S only has one on port 1.
To reflect this, RZ/G3L uses a regulators sub-node with per-port vbus0
and vbus1 entries instead of the single regulator-vbus property used
by other compatible SoCs.

Signed-off-by: Biju Das <[email protected]>
---
v6->v7:
 * Added additionalProperties: false in regulators node.
v5->v6:
 * No change.
v4->v5:
 * Dropped renesas,sysc-pwrrdy for RZ/G3L as pwrrdy signal is modelled as
   power sequence.
 * Dropped the tag from Conor due to above change .
v3->v4:
 * No change.
v2->v3:
 * Replaced items->enum
 * Collected tag.
v1->v2:
 * Updated commit description.
 * Added enum instead of const in the compatible section.
 * Dropped regulator1-vbus and added a regulators group node.
 * Updated schema check.
---
 .../reset/renesas,rzg2l-usbphy-ctrl.yaml      | 41 ++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml b/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml
index c83469a1b379..75e034fa7ce7 100644
--- a/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml
+++ b/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml
@@ -23,6 +23,7 @@ properties:
               - renesas,r9a07g054-usbphy-ctrl # RZ/V2L
           - const: renesas,rzg2l-usbphy-ctrl
       - const: renesas,r9a08g045-usbphy-ctrl # RZ/G3S
+      - const: renesas,r9a08g046-usbphy-ctrl # RZ/G3L
 
   reg:
     maxItems: 1
@@ -50,6 +51,29 @@ properties:
     $ref: /schemas/regulator/regulator.yaml#
     unevaluatedProperties: false
 
+  regulators:
+    type: object
+    additionalProperties: false
+    description:
+      list of vbus regulators provided by this controller.
+
+    properties:
+      vbus0:
+        type: object
+        description: Port 1 USB VBUS regulator
+        $ref: /schemas/regulator/regulator.yaml#
+        unevaluatedProperties: false
+
+      vbus1:
+        type: object
+        description: Port 2 USB VBUS regulator
+        $ref: /schemas/regulator/regulator.yaml#
+        unevaluatedProperties: false
+
+    required:
+      - vbus0
+      - vbus1
+
   renesas,sysc-pwrrdy:
     description:
       The system controller PWRRDY indicates to the USB PHY if the power supply
@@ -71,7 +95,6 @@ required:
   - resets
   - power-domains
   - '#reset-cells'
-  - regulator-vbus
 
 allOf:
   - if:
@@ -86,6 +109,22 @@ allOf:
       properties:
         renesas,sysc-pwrrdy: false
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r9a08g046-usbphy-ctrl
+    then:
+      properties:
+        regulator-vbus: false
+      required:
+        - regulators
+    else:
+      properties:
+        regulators: false
+      required:
+        - regulator-vbus
+
 additionalProperties: false
 
 examples:
-- 
2.43.0