Re: [PATCH 1/2] dt-bindings: usb: dwc3: Add snps,ulpi-ext-vbus-drv quirk
From: Krzysztof Kozlowski
Date: Thu Feb 16 2023 - 04:20:26 EST
On 15/02/2023 10:31, Piyush Mehta wrote:
> Some ULPI USB PHYs do not support an internal vBus supply, to drive the
> CPEN pin properly, it requires configuration of the ULPI DRVVBUSEXTERNAL
> bit of the USB ULPI PHY OTG_CTRL register.
>
> Added 'snps,ulpi-ext-vbus-drv' DT property to configure the USB2 PHY to
> drives VBUS with an external supply.
>
> When the ULPIEXTVBUSDRV bit is set to '1' in the Global USB2 PHY
> Configuration registers, PHY drive vBus with an external 5V supply source.
>
> Signed-off-by: Piyush Mehta <piyush.mehta@xxxxxxx>
> ---
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Best regards,
Krzysztof