Re: [Regulator] Request for clarification - GPIO controlled regulator, USB VBUS,

[Åukasz Majewski]

Hi Mark,

> On Wed, Oct 04, 2017 at 12:45:39PM +0200, Åukasz Majewski wrote:
> > > On Tue, Oct 03, 2017 at 06:58:00PM +0200, Åukasz Majewski wrote:
>
> > >   Perhaps this is something
> > > that could be implemented generically for USB as it's a hotpluggable bus
>
> > In this case we use VBUS as a power supply voltage. The problem with
> > regulator API used in this case is that we enable it on boot-up, but then we
> > cannot "symulate hotplug" anymore.
>
> I don't really understand what you mean there, sorry. 

I do use "regulator-fixed" to control VBUS.

The USB driver used regulator_enable/disable to supply power of VBUS.


What I do want to achieve:

For testing purpose I would like to enable/disable this supply (VBUS) 
and force/restart of re-enumeration.

> The majority of
> regulator usage is to supply power, use as reference voltages or
> similar.


--
Best regards.

Åukasz Majewski