mfd: Add ST Multi-Function eXpander (STMFX) core driver

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STMicroelectronics Multi-Function eXpander (STMFX) is a slave controller
using I2C for communication with the main MCU. Main features are:
- 16 fast GPIOs individually configurable in input/output
- 8 alternate GPIOs individually configurable in input/output when other
STMFX functions are not used
- Main MCU IDD measurement
- Resistive touchscreen controller

Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

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Amelie Delaunay 2019-05-09 10:58:49 +02:00 • committed by Lee Jones

parent fb8c869110

commit 06252ade91

4 changed files with 682 additions and 1 deletions

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include/linux/mfd/stmfx.h

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