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dt-bindings: phy: renesas,usb2-phy: Document USB VBUS regulator

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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@microchip.com>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://patch.msgid.link/aaa8044283eb736817afd43d4fba3aa93b50b1dd.1766405010.git.tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Tommaso Merciai 2025-12-22 14:43:41 +01:00 committed by Vinod Koul
parent de5dba8331
commit 274038b82f
1 changed files with 6 additions and 0 deletions
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6
Documentation/devicetree/bindings/phy/renesas,usb2-phy.yaml
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@ -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: |