David Brownell 1673ad52bd gpio: pcf857x: add lock and handle more chips ...

Two small updates to the pcf857x driver: (a) the max732[89] chips are
also second sources for the pcf8574/a, and (b) add a mutex to prevent
trashing the cached state.  Adding the lock is effectively a bugfix,
although it seems unlikely that anyone would have run into the issue it
protects against.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2008-07-22 09:59:41 -07:00

..

gpiolib.c

gpiolib: fix off by one errors

2008-05-24 09:56:11 -07:00

Kconfig

gpio: pcf857x: add lock and handle more chips

2008-07-22 09:59:41 -07:00

Makefile

gpio: gpio driver for max7301 SPI GPIO expander

2008-07-22 09:59:40 -07:00

max7301.c

gpio: gpio driver for max7301 SPI GPIO expander

2008-07-22 09:59:40 -07:00

mcp23s08.c

gpio: mcp23s08 debug fix

2008-05-24 09:56:11 -07:00

pca953x.c

gpio: pca953x (i2c) handles max7310 too

2008-07-04 10:40:06 -07:00

pcf857x.c

gpio: pcf857x: add lock and handle more chips

2008-07-22 09:59:41 -07:00