Re: [PATCH v4 03/11] power: sequencing: Add pwrseq_is_controllable() API

[Loic Poulain]

Hi Bartosz,

On Fri, Jul 17, 2026 at 11:29 AM Bartosz Golaszewski <brgl@xxxxxxxxxx> wrote:
>
> On Thu, 16 Jul 2026 18:18:20 +0200, Loic Poulain
> <loic.poulain@xxxxxxxxxxxxxxxx> said:
> > On some boards a power sequencing target has no host-controllable enable
> > for its function, for instance when the enable line is not wired up to a
> > GPIO and is hardwired to an always-on level. The pcie-m2 "uart" target is
> > one such example: when the M.2 connector does not route the W_DISABLE2#
> > signal to a host GPIO, its enable/disable are no-ops and the consumer
> > cannot gate the Bluetooth function at all or exclusively.
> >
> > Add a generic pwrseq_is_controllable() helper. It reports whether the
> > target's final unit provides a host-controllable dedicated power actuator.
> > The target can implement a new optional is_controllable() callback,
> > reporting whether that actuator is effective on this target (for example
> > depending on GPIO presence). If the target does not provide the callback,
> > it is assumed to be controllable.
> >
> > Note this only describes the target's own enable actuator. It does not
> > imply that a power-off reaches an electrical OFF state, since a target may
> > have multiple consumers. It also does not mean that power is uncontrolled
> > for the target's dependencies: those may still be gated on their own. And
> > it does not restrict consumers from calling pwrseq_power_off() either,
> > which remains valid to drop this consumer's vote on the (possibly shared)
> > resources and dependencies of the target.
> >
> > Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxxxxxxxx>
> > ---
>
> Thanks, this looks good to me now. This series is a bit all over the place,
> what is the merge strategy?

Since the entire series ultimately depends/touch on the pwrseq topic,
the simplest approach may be to take it all through your pwrseq
branch, with the possible exception of the DTS patches (through
Bjorn)?

Regards,
Loic