linux/drivers/i2c
Shinya Kuribayashi 69151e532c i2c-designware: Disable TX_EMPTY when all i2c_msg msgs has been processed
Currently we disable TX_EMPTY interrupt when buf_len is zero, but this
is wrong.  (buf_len == 0) means that all transmit data in the current
i2c_msg message has been sent out, but that doesn't necessarily mean
all i2c_msg messages have been processed.

TX_EMPTY interrupt is used as the driving force of DW I2C transactions,
so we need to keep it enabled as long as i2c_msg messages are available.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-09 00:19:12 +00:00
..
algos i2c-algo-pca: Let PCA9564 recover from unacked data byte (state 0x30) 2009-05-05 08:39:25 +02:00
busses i2c-designware: Disable TX_EMPTY when all i2c_msg msgs has been processed 2009-12-09 00:19:12 +00:00
chips i2c/chips: Move ds1682 to drivers/misc 2009-12-06 17:06:16 +01:00
Kconfig i2c: Prevent priority inversion on top of bus lock 2009-12-06 17:06:22 +01:00
Makefile i2c: Add i2c_board_info and i2c_new_device() 2007-05-01 23:26:31 +02:00
i2c-boardinfo.c i2c: Use rwsem instead of mutex for board info 2009-06-19 16:58:20 +02:00
i2c-core.c i2c: Refactor for_each callbacks 2009-12-06 17:06:27 +01:00
i2c-core.h i2c: Use rwsem instead of mutex for board info 2009-06-19 16:58:20 +02:00
i2c-dev.c i2c: Remove big kernel lock from i2cdev_open 2009-12-06 17:06:26 +01:00