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SubjectRe: [PATCH v4 5/7] power: reset: Add poweroff driver for ATC260x PMICs
Hi Sebastian,

On Sun, Jan 03, 2021 at 04:26:31AM +0100, Sebastian Reichel wrote:
> Hi,
>
> On Tue, Dec 29, 2020 at 07:31:20PM +0200, Cristian Ciocaltea wrote:
> > This driver provides poweroff and reboot support for a system through
> > the ATC2603C and ATC2609A chip variants of the Actions Semi ATC260x
> > family of PMICs.
> >
> > Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
> > ---
> > Changes in v4:
> > - None
> >
> > Changes in v3:
> > - Removed the unnecessary driver compatibles
> >
> > [...]
> > +#include <linux/delay.h>
> > +#include <linux/mfd/atc260x/core.h>
> > +#include <linux/module.h>
> > +#include <linux/of.h>
>
> There is no DT code in this driver?

Right, this line is not needed anymore, I will drop it and submit a new
patch revision.

> > +#include <linux/platform_device.h>
> > +#include <linux/power_supply.h>
>
> power_supply.h? That's for chargers and battery fuel gauges.

That is only used for checking if the S4 mode is available - which
involves calling 'power_supply_is_system_supplied()'.

> > +#include <linux/reboot.h>
> > +#include <linux/regmap.h>
>
> > [...]
>
> Otherwise LGTM. I suppose I can cherry-pick this patch into
> my tree, or did I miss some dependencies?

I'm not really sure what is the recommended approach (if any) for
merging MFD drivers.

The only dependency is the PMIC core driver in patch 3/7, which is
handled in Kconfig through 'depends on MFD_ATC260X'.

So far, Mark applied the regulator driver patch to his tree, while
Dmitry suggested to merge the onkey driver through MFD. So I think both
approaches are fine.

@Lee: Do you have any preference or recommendation for handling this?

> -- Sebastian

Thanks for the review,
Cristi

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