Re: [PATCH 2/2] mfd: ds1374: Add Dallas/Maxim DS1374 Multi Function Device

[Lee Jones]

On Mon, 17 Jul 2017, Moritz Fischer wrote:

> Hi Lee,
> 
> On Mon, Jul 17, 2017 at 08:51:17AM +0100, Lee Jones wrote:
> > On Thu, 13 Jul 2017, Moritz Fischer wrote:
> > 
> > > From: Moritz Fischer <moritz.fischer@xxxxxxxxx>
> > > 
> > > Add support for the Maxim/Dallas DS1374 RTC/WDT with trickle charger.
> > > The device can either be configured as simple RTC, as simple RTC with
> > > Alarm (IRQ) as well as simple RTC with watchdog timer.
> > > 
> > > Break up the old monolithic driver in drivers/rtc/rtc-ds1374.c into:
> > > - rtc part in drivers/rtc/rtc-ds1374.c
> > > - watchdog part under drivers/watchdog/ds1374-wdt.c
> > > - mfd part drivers/mfd/ds1374.c
> > > 
> > > The MFD part takes care of trickle charging and mode selection,
> > > since the usage modes of a) RTC + Alarm or b) RTC + WDT
> > > are mutually exclusive.
> > > 
> > > Signed-off-by: Moritz Fischer <mdf@xxxxxxxxxx>
> > > ---
> > >  drivers/mfd/Kconfig              |  10 +
> > >  drivers/mfd/Makefile             |   1 +
> > >  drivers/mfd/ds1374.c             | 260 ++++++++++++++++
> > >  drivers/rtc/rtc-ds1374.c         | 639 ++++++++++-----------------------------
> > 
> > It looks like this should now depend on MFD_DS1374, right?
> > 
> > >  drivers/watchdog/Kconfig         |  10 +
> > >  drivers/watchdog/Makefile        |   1 +
> > >  drivers/watchdog/ds1374-wdt.c    | 208 +++++++++++++
> > 
> > The RTC and Watchdog drivers need to be split out of this patch and
> > placed into their own.  Then we can take them through their respective
> > subsystem trees and do not have to rely on immutable branches for
> > unification.
> 
> Ok, I haven't found a good way to keep this bisectable in that case. I'm
> open to suggestions. If the consensus ends up being to split it up, I'm
> more than happy to separate it out into multiple patches.

If it's genuinely not bisectable, then leave it as is.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog