regulator: BD71837 PMIC resume during noirq phase?

Mark Brown broonie at kernel.org
Tue Jun 14 03:16:15 PDT 2022


On Tue, Jun 14, 2022 at 11:57:18AM +0200, Martin Kepplinger wrote:
> Am Dienstag, dem 14.06.2022 um 10:18 +0100 schrieb Mark Brown:

> > Indeed - if a power domain is controlling regulators then I'd not
> > expect
> > things to go well if it tries to resume without interrupts, there
> > will
> > be some things that can be done purely with GPIOs but that's
> > depending
> > on the hardware having wired things up that way and the operations
> > needed by the power domain mapping well onto what can be done with
> > GPIOs.
> 
> and what's the danger when resuming power domains later?:

If there's a device that needs to early resume in a power domain that
needs to do something on resume then presumably this will mess up the
ordering.  You probably need a separate power domain type, or both
operations.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20220614/7294767f/attachment.sig>


More information about the linux-arm-kernel mailing list