linux-kernel - [PATCH 0/5] Introduce STMFX I2C GPIO expander

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Date:   Wed, 11 Apr 2018 11:47:00 +0200
From:   Amelie Delaunay <amelie.delaunay@...com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        Alexandre Torgue <alexandre.torgue@...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>,
        "Lee Jones" <lee.jones@...aro.org>,
        Amelie Delaunay <amelie.delaunay@...com>
Subject: [PATCH 0/5] Introduce STMFX I2C GPIO expander

This series adds support for STMicroelectronics Multi-Function eXpander
(STMFX) GPIO expander, used on some STM32 discovery and evaluation boards.

STMFX is an STM32L152 based I2C slave controller, whose firmware embeds an
I/O expansion feature, offering 24 GPIOs.

STMFX pinctrl/GPIO driver provides a GPIO interface supporting inputs and
outputs, and a pinctrl interface supporting push-pull and open-drain
configuration.
STMFX GPIO expander can also be used as interrupt controller.

Previous series [1], based on MFD and GPIO frameworks, is abandoned and
completely reworked.

[1] https://lkml.org/lkml/2018/2/8/300

Amelie Delaunay (5):
  dt-bindings: pinctrl: document the STMFX pinctrl bindings
  pinctrl: Add STMFX GPIO expander Pinctrl/GPIO driver
  ARM: dts: stm32: add STMFX pinctrl/gpio expander support on
    stm32746g-eval
  ARM: dts: stm32: add orange and blue leds on stm32746g-eval
  ARM: dts: stm32: add joystick support on stm32746g-eval

 .../devicetree/bindings/pinctrl/pinctrl-stmfx.txt  | 118 +++
 arch/arm/boot/dts/stm32746g-eval.dts               |  66 ++
 drivers/pinctrl/Kconfig                            |  13 +
 drivers/pinctrl/Makefile                           |   1 +
 drivers/pinctrl/pinctrl-stmfx.c                    | 985 +++++++++++++++++++++
 5 files changed, 1183 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pinctrl/pinctrl-stmfx.txt
 create mode 100644 drivers/pinctrl/pinctrl-stmfx.c

-- 
2.7.4