[PATCH 11/11] ARM: tegra: pcie: Add device tree support

[Thierry Reding]

* Mark Brown wrote:
> On Mon, Mar 12, 2012 at 03:17:05PM +0100, Thierry Reding wrote:
> 
> > My understanding of the fixed regulator was that it was meant to be used for
> > fixed voltage supplies that can still be enabled or disabled (for example as
> > supplied by a GPIO) but not regulators that are fix in the sense that they
> > cannot be enabled or disabled at all but are always on.
> 
> No, not at all.  It's for any random supply that doesn't have much
> meaningful control - as you'll see from the code the GPIO is totally
> optional if you look at the git history you'll see that the GPIO was
> added some time after the driver was originally merged.
> 
> > Is that how it is supposed to work?
> 
> Yes.

In that case I'll mark the *-supply properties required. Would it be a good
idea to mention this (or even give an example with fixed regulators) in the
binding documentation or can I assume this to be common knowledge?

Thierry
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