Mika Kuoppala 194684e596 i2c: Prevent priority inversion on top of bus lock ...

Low priority thread holding the i2c bus mutex could block higher
priority threads to access the bus resulting in unacceptable
latencies. Change the mutex type to rt_mutex preventing priority
inversion.

Tested-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@nokia.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

2009-12-06 17:06:22 +01:00

..

algos

i2c-algo-pca: Let PCA9564 recover from unacked data byte (state 0x30)

2009-05-05 08:39:25 +02:00

busses

i2c-voodoo3: Delete

2009-12-06 17:06:21 +01:00

chips

i2c/chips: Move ds1682 to drivers/misc

2009-12-06 17:06:16 +01:00

i2c-boardinfo.c

i2c: Use rwsem instead of mutex for board info

2009-06-19 16:58:20 +02:00

i2c-core.c

i2c: Prevent priority inversion on top of bus lock

2009-12-06 17:06:22 +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-dev: Clarify the unit of ioctl I2C_TIMEOUT

2009-02-24 19:19:49 +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