Daniel Mack c8a06c1ef0 w1-gpio: add external pull-up enable callback ... On embedded devices, sleep mode conditions can be tricky to handle, Especially when processors tend to pull-down the w1 bus during sleep. Bus slaves (such as the ds2760) may interpret this as a reason for power-down conditions and entirely switch off the device. This patch adds a callback function pointer to let users switch on and off the external pull-up resistor. This lets the outside world know whether the processor is currently actively driving the bus or not. When this callback is not provided, the code behaviour won't change. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: Ville Syrjala <syrjala@sci.fi> Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-06-18 13:03:58 -07:00
..
ds1wm.c
ds2482.c
ds2490.c
Kconfig	trivial: Kconfig: .ko is normally not included in module names	2009-06-12 18:01:50 +02:00
Makefile
matrox_w1.c
mxc_w1.c
omap_hdq.c
w1-gpio.c	w1-gpio: add external pull-up enable callback	2009-06-18 13:03:58 -07:00