Re: [PATCH v4 0/9] Introduce STMFX I2C Multi-Function eXpander

[Alexandre Torgue]

Hi AmÃlie

On 2/27/19 10:34 AM, 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 STMFX features MFD children.
>
> ---
> Changes in v4:
> - mfd: move registers #define into the header
> - mfd: merge stmfx and stmfx_ddata structures into one stmfx structure
> - mfd: change stmfx_chip_init/exit and stmfx_irq_init/exit args: use
>    i2c_client struct and i2c_get_clientdata
> - mfd: fix typos
> - mfd: add MFD cells for IDD and TS features
> - pinctrl: rework registers #define
> - dts: add STMFX support on stm32mp157c-ev1
> Changes in v3:
> - fix MFD interrupt bindings
> - fix drivers/mfd/stmfx.c:103:8: warning: 'mask' may be used uninitialized
>    in this function
> 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 (9):
>    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
>    ARM: dts: stm32: add STMFX support on stm32mp157c-ev1
>    ARM: dts: stm32: add joystick support on stm32mp157c-ev1

DT patches looks good. I'll take them in STM32 soc tree as soon as Lee 
takes driver part.

Regards
Alex