On Tue, Oct 29, 2013 at 12:26:26AM +0100, Sebastian Reichel wrote:

1. The pin is named PMEN in the Nokia N900 schematics
2. PMEN is described as "Power management enable - system shutdown"
   in a crippled datasheet of the wl1253, which I found in the internet.

I don't think this is supposed to be handled by the regulator API.

I agree, this sounds like a GPIO that the driver should be understanding
directly to me.