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3 Commits

Author SHA1 Message Date
Amelie Delaunay
97eda5dcc2 mfd: stmfx: Disable IRQ in suspend to avoid spurious interrupt 
When STMFX supply is stopped, spurious interrupt can occur. To avoid that,
disable the interrupt in suspend before disabling the regulator and
re-enable it at the end of resume.

Fixes: 06252ade91 ("mfd: Add ST Multi-Function eXpander (STMFX) core driver")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2020-05-26 10:51:21 +01:00
Nathan Chancellor
b1c83bd846 mfd: stmfx: Fix macro definition spelling 
Clang warns:

In file included from drivers/mfd/stmfx.c:13:
include/linux/mfd/stmfx.h:7:9: warning: 'MFD_STMFX_H' is used as a
header guard here, followed by #define of a different macro
[-Wheader-guard]

Fixes: 06252ade91 ("mfd: Add ST Multi-Function eXpander (STMFX) core driver")
Link: https://github.com/ClangBuiltLinux/linux/issues/475
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2019-07-02 12:11:31 +01:00
Amelie Delaunay
06252ade91 mfd: Add ST Multi-Function eXpander (STMFX) core driver 
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>
 2019-05-10 08:21:23 +01:00