Re: [PATCH 1/4] devicetree: add a binding for a regulator that constrains its supply

[Mark Brown]

On Mon, Nov 24, 2014 at 02:02:00PM +0100, Alban Bedel wrote:

> +Constrained Supply Regulator
> +
> +This binding allow creating a virtual regulator that constrain its
> +supply to provides the requested voltage. This is to allow using
> +simple drivers that don't explicitly request a voltage on boards
> +that have adjustable hardware regulators.
> +
> +Required properties:
> +- compatible : Must be "regulator-constrained-supply".
> +- vin-supply : phandle to the parent supply/regulator node

Reading this description I'm at a loss to explain what this is intended
to achieve - it's obviously not describing hardware which is a rather
large alarm bell and I don't really understand why the constraints
wouldn't be set on the parent regulator.

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