[PATCH v2 0/7] Introduce STMFX I2C Multi-Function eXpander

Linus Walleij linus.walleij at linaro.org
Wed Sep 19 12:50:44 PDT 2018


On Wed, Sep 19, 2018 at 6:28 AM Amelie Delaunay <amelie.delaunay at st.com> 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.
>
> ---
> 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

I'm very happy with this version, and Lee can merge it into the MFD tree
with my Reviewed-by tags once he is happy with the MFD core.

I hope the DT people are as happy as me so we can merge this for v4.20,
the GPIO/pinctrl parts are definately finished. any remaining snags can
be fixed in-tree.

Yours,
Linus Walleij



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