linux-kernel - Re: [PATCH v2 0/7] Introduce STMFX I2C Multi-Function eXpander

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Date:   Wed, 19 Sep 2018 18:20:44 +0200
From:   Alexandre Torgue <alexandre.torgue@...com>
To:     Amelie Delaunay <amelie.delaunay@...com>,
        Lee Jones <lee.jones@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>
CC:     <linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-stm32@...md-mailman.stormreply.com>
Subject: Re: [PATCH v2 0/7] Introduce STMFX I2C Multi-Function eXpander

Hi Amélie,

On 09/19/2018 03:27 PM, Amelie Delaunay wrote:
> This series adds support for STMicroelectronics Multi-Function eXpander
> (STMFX), used on some STM32 discovery and evaluation boards.
> 
> STMFX is an STM32L152 slave controller whose firmware embeds the following
> features:
> - I/O expander (16 GPIOs + 8 extra if the other features are not enabled),
> - resistive touchscreen controller,
> - IDD measurement.
> 
> I2C stuff and chip initialization is based on an MFD parent driver, which
> registers a pinctrl MFD child.
> 
> ---

As soon as bindings will be accepted, I'll have a look on DT patches in 
order to merge them in stm32-next branch.

regards
Alex

> Changes in v2:
> - move to MFD parent driver for i2c stuff and chip initialization
> - improve regmap configuration
> - take advantage of the use of gpio-ranges
> 
> 
> Amelie Delaunay (7):
>    dt-bindings: mfd: Add ST Multi-Function eXpander (STMFX) core bindings
>    mfd: Add ST Multi-Function eXpander (STMFX) core driver
>    dt-bindings: pinctrl: document the STMFX pinctrl bindings
>    pinctrl: Add STMFX GPIO expander Pinctrl/GPIO driver
>    ARM: dts: stm32: add STMFX support on stm32746g-eval
>    ARM: dts: stm32: add joystick support on stm32746g-eval
>    ARM: dts: stm32: add orange and blue leds on stm32746g-eval
> 
>   Documentation/devicetree/bindings/mfd/stmfx.txt    |  28 +
>   .../devicetree/bindings/pinctrl/pinctrl-stmfx.txt  | 116 +++
>   arch/arm/boot/dts/stm32746g-eval.dts               |  66 ++
>   drivers/mfd/Kconfig                                |  14 +
>   drivers/mfd/Makefile                               |   2 +-
>   drivers/mfd/stmfx.c                                | 626 ++++++++++++++++
>   drivers/pinctrl/Kconfig                            |  12 +
>   drivers/pinctrl/Makefile                           |   1 +
>   drivers/pinctrl/pinctrl-stmfx.c                    | 821 +++++++++++++++++++++
>   include/linux/mfd/stmfx.h                          |  27 +
>   10 files changed, 1712 insertions(+), 1 deletion(-)
>   create mode 100644 Documentation/devicetree/bindings/mfd/stmfx.txt
>   create mode 100644 Documentation/devicetree/bindings/pinctrl/pinctrl-stmfx.txt
>   create mode 100644 drivers/mfd/stmfx.c
>   create mode 100644 drivers/pinctrl/pinctrl-stmfx.c
>   create mode 100644 include/linux/mfd/stmfx.h
>