linux-stable/drivers/i2c
Vishwanath BS 753419f59e i2c: Fix for suspend/resume issue
In current i2c core driver, call to pm_runtime_set_active from
i2c_device_pm_resume will unconditionally enable i2c module and
increment child count of the parent. Because of this, in CPU Idle
path, i2c does not idle, preventing Core to enter retention. Also i2c
module will not be suspended upon system suspend as
pm_runtime_set_suspended is not called from i2c_device_pm_suspend.

This issue is fixed by removing pm_runtime_set_active call from resume
path which is not necessary.
This fix has been tested on OMAP4430.

Signed-off-by: Partha Basak <p-basak2@ti.com>
Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-09-30 14:14:22 +02:00
..
algos i2c-algo-pca: Fix coding style issues 2010-05-21 18:41:00 +02:00
busses i2c-omap: Make sure i2c bus is free before setting it to idle 2010-09-22 01:06:58 +01:00
muxes i2c: I2C bus multiplexer driver pca954x 2010-08-11 18:21:03 +02:00
i2c-boardinfo.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
i2c-core.c i2c: Fix for suspend/resume issue 2010-09-30 14:14:22 +02:00
i2c-core.h i2c: Use rwsem instead of mutex for board info 2009-06-19 16:58:20 +02:00
i2c-dev.c i2c: Multiplexed I2C bus core support 2010-08-11 18:21:02 +02:00
i2c-mux.c i2c: Multiplexed I2C bus core support 2010-08-11 18:21:02 +02:00
i2c-smbus.c i2c: Remove all i2c_set_clientdata(client, NULL) in drivers 2010-06-03 11:33:58 +02:00
Kconfig i2c: I2C bus multiplexer driver pca954x 2010-08-11 18:21:03 +02:00
Makefile i2c: I2C bus multiplexer driver pca954x 2010-08-11 18:21:03 +02:00