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dt-bindings: musb: mpfs: add ULPI external vbus support

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Add a property to allow configuring the musb controller on PolarFire SoC
to use an external vbus for ULPI PHYs.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240531-fountain-plating-1d3739422a26@wendy
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Conor Dooley 2024-05-31 08:04:31 +01:00 committed by Greg Kroah-Hartman
parent e44f31e2b9
commit fb67c6c7bc
1 changed files with 7 additions and 0 deletions
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7
Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml
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@ -34,6 +34,13 @@ properties:
clocks:
maxItems: 1
microchip,ext-vbus-drv:
description:
Some ULPI USB PHYs do not support an internal VBUS supply and driving
the CPEN pin requires the configuration of the UPLI_USE__EXTVBUS
bit in ULPI_BUSCONTROL.
$ref: /schemas/types.yaml#/definitions/flag
required:
- compatible
- reg