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Date:   Mon, 23 Jan 2017 22:42:17 -0800
From:   Olof Johansson <olof@...om.net>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        "arm@...nel.org" <arm@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexandre TORGUE <alexandre.torgue@...com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Linux PWM List <linux-pwm@...r.kernel.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>, fabrice.gasnier@...com,
        gerald.baeza@...com, arnaud.pouliquen@...com,
        "linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>,
        Benjamin Gaignard <benjamin.gaignard@...com>
Subject: Re: [GIT PULL] Immutable branch between MFD, ARM, IIO and PWM due for
 the v4.10 merge window

Hi Lee,

On Mon, Jan 23, 2017 at 4:12 AM, Lee Jones <lee.jones@...aro.org> wrote:
> Arm, IIO and PWM Maintainers,
>
> Enjoy!
>
> The following changes since commit 7ce7d89f48834cefece7804d38fc5d85382edf77:
>
>   Linux 4.10-rc1 (2016-12-25 16:13:08 -0800)
>
> are available in the git repository at:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git ib-mfd-arm-iio-pwm-v4.10
>
> for you to fetch changes up to 94df449273475980a39f1bf47f1e3d2b07ce6577:
>
>   ARM: dts: stm32: Enable pwm1 and pwm3 for stm32f469-disco (2017-01-23 12:06:28 +0000)
>
> ----------------------------------------------------------------
> Immutable branch between MFD, ARM, IIO and PWM due for the v4.10 merge window
>
> ----------------------------------------------------------------
> Benjamin Gaignard (8):
>       dt-bindings: mfd: Add bindings for STM32 Timers driver
>       mfd: Add STM32 Timers driver
>       dt-bindings: pwm: Add STM32 bindings
>       pwm: Add driver for STM32 plaftorm
>       iio: Add bindings for STM32 timer trigger driver
>       iio: Add STM32 timer trigger driver
>       ARM: dts: stm32: add Timers driver for stm32f429 MCU
>       ARM: dts: stm32: Enable pwm1 and pwm3 for stm32f469-disco
>
>  .../ABI/testing/sysfs-bus-iio-timer-stm32          |  29 ++
>  .../bindings/iio/timer/stm32-timer-trigger.txt     |  23 ++
>  .../devicetree/bindings/mfd/stm32-timers.txt       |  46 +++
>  .../devicetree/bindings/pwm/pwm-stm32.txt          |  35 ++
>  arch/arm/boot/dts/stm32f429.dtsi                   | 275 ++++++++++++++
>  arch/arm/boot/dts/stm32f469-disco.dts              |  28 ++
>  drivers/iio/trigger/Kconfig                        |   9 +
>  drivers/iio/trigger/Makefile                       |   1 +
>  drivers/iio/trigger/stm32-timer-trigger.c          | 342 ++++++++++++++++++
>  drivers/mfd/Kconfig                                |  11 +
>  drivers/mfd/Makefile                               |   2 +
>  drivers/mfd/stm32-timers.c                         |  80 +++++
>  drivers/pwm/Kconfig                                |   9 +
>  drivers/pwm/Makefile                               |   1 +
>  drivers/pwm/pwm-stm32.c                            | 398 +++++++++++++++++++++
>  include/linux/iio/timer/stm32-timer-trigger.h      |  62 ++++
>  include/linux/mfd/stm32-timers.h                   |  71 ++++
>  17 files changed, 1422 insertions(+)
>  create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-timer-stm32
>  create mode 100644 Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
>  create mode 100644 Documentation/devicetree/bindings/mfd/stm32-timers.txt
>  create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32.txt
>  create mode 100644 drivers/iio/trigger/stm32-timer-trigger.c
>  create mode 100644 drivers/mfd/stm32-timers.c
>  create mode 100644 drivers/pwm/pwm-stm32.c
>  create mode 100644 include/linux/iio/timer/stm32-timer-trigger.h
>  create mode 100644 include/linux/mfd/stm32-timers.h

May I ask why you're creating an immutable branch of all this contents?

We should get the dts/dtsi contents like usual from any maintainer;
just the DT updates in a branch.

Sometimes (but less and less due to us discouraging the use) we need
an immutable branch that includes dt-include updates. But I don't see
any of those in this contents.

I.e. I guess I can see the need between mfd and downstream trees
(iio/pwm), but not the DTS contents at this time. Or am I missing
something here?

-Olof

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