Re: [PATCH v2 1/3] mfd: sprd-sc27xx: Integrate power off and reboot support

From: Lee Jones

Date: Wed Nov 26 2025 - 10:36:24 EST


On Sun, 23 Nov 2025, Otto Pflüger wrote:

> On Thu, Nov 20, 2025 at 03:30:24PM +0000, Lee Jones wrote:
> > On Mon, 10 Nov 2025, Otto Pflüger wrote:
> >
> > > The SC27xx PMICs allow restarting and powering off the device. Since
> > > this functionality is rather simple and not configurable in any way,
> > > make it part of the main PMIC driver.
> >
> > This sounds like more of a drivers/power thing.
>
> This was originally in drivers/power, but according to [1], it should
> not be a separate device tree node. Using a separate driver without a
> separate device tree node would still involve some code here that
> instantiates a platform device and selects the right platform data for
> it.
>
> Registering the poweroff handler directly seemed less complex, and I
> assumed it was okay since some other MFD drivers (e.g. rk8xx) also
> implement the same functionality without a separate power driver.
>
> Is it a good idea to use devm_mfd_add_devices here instead?
>
> [1]: https://lore.kernel.org/all/20251002025344.GA2958334-robh@xxxxxxxxxx/

Well that is quite the predicament.

Let me catch-up with Rob out-of-band and see if we can come up with a
solution.

--
Lee Jones [李琼斯]