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SubjectRe: [Regulator] Request for clarification - GPIO controlled regulator, USB VBUS,
Hi Mark,

> On Wed, Oct 04, 2017 at 12:45:39PM +0200, Łukasz Majewski wrote:
>>> On Tue, Oct 03, 2017 at 06:58:00PM +0200, Łukasz 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.

Łukasz Majewski

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