mirror of
https://github.com/torvalds/linux.git
synced 2024-12-22 10:56:40 +00:00
c8a06c1ef0
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> |
||
---|---|---|
.. | ||
masters | ||
slaves | ||
Kconfig | ||
Makefile | ||
w1_family.c | ||
w1_family.h | ||
w1_int.c | ||
w1_int.h | ||
w1_io.c | ||
w1_log.h | ||
w1_netlink.c | ||
w1_netlink.h | ||
w1.c | ||
w1.h |