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SubjectRe: parent/child hierarchy for regulator
On Thu, Mar 05, 2015 at 01:18:54PM +0100, Stefan Wahren wrote:
> Hi Peter,
>
> Am 05.03.2015 um 11:35 schrieb Peter Chen:
> > Hi lists,
> >
> > Any good ways at code/dts to show parent/child hierarchy for regulator?
> >
> > The related regulators at my platforms like below:
> > PMIC (SWB 5v) --> Switch Chip (GPIO Regulator) --> USB VBUS
> >
> > PMIC has one 5V regulator (eg, swbst at pfuse), and it is the input
> > for USB power switch chip, and there are two gpios at this switch
> > chip to control if 5V is output or not, we register these two gpios as
> > fixed regulators, currently, if regulator swbst is disabled, the
> > gpio regulator has no way to know, and cause the vbus voltage is wrong.
> >
> > Thanks in advance.
> >
>
> i don't have an answer to your question, but do you think of i.MX28
> platform?
>

No, many Freescale i.mx6 SDB boards need to consider this problem.
--

Best Regards,
Peter Chen


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