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SubjectRe: [PATCH v5 1/3] mfd: Add support for Cherry Trail Dollar Cove TI PMIC
On Tue, 05 Sep 2017, Hans de Goede wrote:

> Hi,
>
> On 05-09-17 09:46, Takashi Iwai wrote:
> > On Tue, 05 Sep 2017 09:24:51 +0200,
> > Lee Jones wrote:
> > >
> > > On Mon, 04 Sep 2017, Takashi Iwai wrote:
> > >
> > > > This patch adds the MFD driver for Dollar Cove (TI version) PMIC with
> > > > ACPI INT33F5 that is found on some Intel Cherry Trail devices.
> > > > The driver is based on the original work by Intel, found at:
> > > > https://github.com/01org/ProductionKernelQuilts
> > > >
> > > > This is a minimal version for adding the basic resources. Currently,
> > > > only ACPI PMIC opregion and the external power-button are used.
> > > >
> > > > Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=193891
> > > > Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
> > > > Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
> > > > Signed-off-by: Takashi Iwai <tiwai@suse.de>
> > > > ---
> > > > v4->v5:
> > > > * Minor coding-style fixes suggested by Lee
> > > > * Put GPL text
> > > > v3->v4:
> > > > * no change for this patch
> > > > v2->v3:
> > > > * Rename dc_ti with chtdc_ti in all places
> > > > * Driver/kconfig renames accordingly
> > > > * Added acks by Andy and Mika
> > > > v1->v2:
> > > > * Minor cleanups as suggested by Andy
> > > >
> > > > drivers/mfd/Kconfig | 13 +++
> > > > drivers/mfd/Makefile | 1 +
> > > > drivers/mfd/intel_soc_pmic_chtdc_ti.c | 184 ++++++++++++++++++++++++++++++++++
> > > > 3 files changed, 198 insertions(+)
> > > > create mode 100644 drivers/mfd/intel_soc_pmic_chtdc_ti.c
> > >
> > > For my own reference:
> > > Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
> >
> > Thanks!
> >
> > Now the question is how to deal with these. It's no critical things,
> > so I'm OK to postpone for 4.15. OTOH, it's really a new
> > device-specific stuff, thus it can't break anything else, and it'd be
> > fairly safe to add it for 4.14 although it's at a bit late stage.
> >
> > IMO, it'd be great if you can carry all stuff through MFD tree; or
> > create an immutable branch (again). But how to handle it, when to do
> > it, It's all up to you guys.
>
> Since the mfd driver only instantiates platform devices there
> is only a runtime dependency between the drivers AFAICT so each
> driver can be merged through it own subsystem without problem /
> without the need for an immutable branch, or am I missing something ?

Seconded.

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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