On Mon, Jan 18, 2021 at 05:02:45PM +0100, Mauro Carvalho Chehab wrote:
> Mark Brown <broonie@kernel.org> escreveu:

> > If for some reason the PMIC is sufficiently fragile to need a delay
> > between enables it's not clear why the driver is doing it before
> > enabling rather than after, presumably there's issues with the regulator
> > ramping up and stabalising its output 

> I don't have any datasheets or documentation from this device, except for 
> the Linaro's official driver for Kernel 4.9 (from where this driver
> was originally ported), and a high-level documentation for this 
> hardware at 96boards site, which doesn't cover any details.

This misses the point.  To repeat, if the driver is hard coding
a delay why is the driver doing this *before* rather than *after*
enabling?