linux-kernel - [PATCH v2 07/21] dt-bindings: phy: renesas,usb2-phy: Document USB VBUS regulator

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Message-ID: <7fa70815df0e96132acf39ec6b12fe6b421d7948.1762354366.git.tommaso.merciai.xr@bp.renesas.com>
Date: Wed,  5 Nov 2025 16:39:03 +0100
From: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
To: tomm.merciai@...il.com
Cc: linux-renesas-soc@...r.kernel.org,
	biju.das.jz@...renesas.com,
	Tommaso Merciai <tommaso.merciai.xr@...renesas.com>,
	Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Peter Rosin <peda@...ntia.se>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Conor Dooley <conor.dooley@...rochip.com>
Subject: [PATCH v2 07/21] dt-bindings: phy: renesas,usb2-phy: Document USB VBUS regulator

Document the 'vbus-regulator' child node in the Renesas USB2 PHY binding
to describe the internal USB VBUS regulator.

Require this regulator node on OTG channels to accurately represent
hardware dependencies in the device tree.

Documenting this regulator allows device trees to model the VBUS power
requirements of these SoCs properly.

Acked-by: Conor Dooley <conor.dooley@...rochip.com>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
---
v1->v2:
 - Collected CDooley tag

 Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml b/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml
index 2bbec8702a1e..2cd0efa75f81 100644
--- a/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml
@@ -89,6 +89,12 @@ properties:
       Phandle to a regulator that provides power to the VBUS. This regulator
       will be managed during the PHY power on/off sequence.
 
+  vbus-regulator:
+    $ref: /schemas/regulator/regulator.yaml#
+    description: USB VBUS internal regulator
+    type: object
+    unevaluatedProperties: false
+
   renesas,no-otg-pins:
     $ref: /schemas/types.yaml#/definitions/flag
     description: |
-- 
2.43.0