Re: [PATCH v4 4/6] nfc: s3fwrn5: enable the PVDD supply

On Fri, Aug 07, 2026 at 04:09:59AM +0200, Jorijn van der Graaf wrote:
> The controller is powered by an externally switched PVDD rail. Get and
> enable it in the i2c phy probe, before any of the chip's pins is driven
> or its clock started, so the chip's power does not depend on whatever
> state the bootloader or platform left the rail in. Boards that do not
> describe the supply resolve to a dummy regulator, so the existing users
> keep working; they gain the regulator core's dummy-supply warning until
> their DTs describe the rail.

Last sentence is redundant - we know how regulator framework works.

What is not redundant and missing is why UART variants do not need
supply.

Best regards,
Krzysztof