linux-toradex.git/kernel/time/clockevents.c, branch v3.11

clockevents: Implement unbind functionality

2013-05-16T09:09:18+00:00

Provide a sysfs interface to allow unbinding of clockevent
devices. The device is unbound if it is unused or if there is a
replacement device available. Unbinding of broadcast devices is not
supported as we don't want to foster that nonsense. If no replacement
device is available the unbind returns -EBUSY. Unbind is available
from the kernel and through sysfs, which is necessary to drop the
module refcount.

Signed-off-by: Thomas Gleixner 
Cc: John Stultz 
Cc: Magnus Damm 
Link: http://lkml.kernel.org/r/20130425143436.499216659@linutronix.de
Signed-off-by: Thomas Gleixner

clockevents: Provide sysfs interface

2013-05-16T09:09:17+00:00

Provide a simple sysfs interface for the clockevent devices. Show the
current active clockevent device.

Signed-off-by: Thomas Gleixner 
Cc: John Stultz 
Cc: Magnus Damm 
Link: http://lkml.kernel.org/r/20130425143436.371634778@linutronix.de
Signed-off-by: Thomas Gleixner

clockevents: Add module refcount

2013-05-16T09:09:17+00:00

We want to be able to remove clockevent modules as well. Add a
refcount so we don't remove a module with an active clock event
device.

Signed-off-by: Thomas Gleixner 
Cc: John Stultz 
Cc: Magnus Damm 
Link: http://lkml.kernel.org/r/20130425143436.307435149@linutronix.de
Signed-off-by: Thomas Gleixner

clockevents: Move the tick_notify() switch case to clockevents_notify()

2013-05-16T09:09:16+00:00

No need to call another function and have duplicated cases.

Signed-off-by: Thomas Gleixner 
Cc: John Stultz 
Cc: Magnus Damm 
Link: http://lkml.kernel.org/r/20130425143436.235746557@linutronix.de
Signed-off-by: Thomas Gleixner

clockevents: Get rid of the notifier chain

2013-05-16T09:09:16+00:00

7+ years and still a single user. Kill it.

Signed-off-by: Thomas Gleixner 
Cc: John Stultz 
Cc: Magnus Damm 
Link: http://lkml.kernel.org/r/20130425143436.098520211@linutronix.de
Signed-off-by: Thomas Gleixner

clockevents: export clockevents_config_and_register for module use

2013-01-14T18:12:37+00:00

clockevents_config_and_register is a handy helper for clockevent
drivers, some of which might support module build, so export the symbol.

Signed-off-by: Shawn Guo 
Acked-by: Arnd Bergmann 
Reviewed-by: Thomas Gleixner 
Signed-off-by: Olof Johansson

timekeeping: Add suspend and resume of clock event devices

2012-09-03T23:36:01+00:00

Some clock event devices, for example such that belong to PM domains,
need to be handled in a spcial way during the timekeeping suspend
and resume (which takes place in the system core, or "syscore",
stages of system power transitions) in analogy with clock sources.

Introduce .suspend() and .resume() callbacks for clock event devices
that will be executed by timekeeping_suspend/_resume(), respectively,
next the the clock sources' .suspend() and .resume() callbacks.

Signed-off-by: Rafael J. Wysocki

clockevents: Make clockevents_config() a global symbol

2012-05-24T23:44:51+00:00

Make clockevents_config() into a global symbol to allow it to be used
by compiled-in clockevent drivers. This is needed by drivers that want
to update the timer frequency after registration time.

Signed-off-by: Magnus Damm 
Tested-by: Simon Horman 
Cc: arnd@arndb.de
Cc: johnstul@us.ibm.com
Cc: rjw@sisk.pl
Cc: lethal@linux-sh.org
Cc: gregkh@linuxfoundation.org
Cc: olof@lixom.net
Cc: Magnus Damm 
Link: http://lkml.kernel.org/r/20120509143934.27521.46553.sendpatchset@w520
Signed-off-by: Thomas Gleixner

clockevents: remove sysdev.h

2011-12-22T00:12:37+00:00

This isn't needed in the clockevents.c file, and the header file is
going away soon, so just remove the #include

Cc: Thomas Gleixner 
Signed-off-by: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

clockevents: Add direct ktime programming function

2011-09-08T09:10:56+00:00

There is at least one architecture (s390) with a sane clockevent device
that can be programmed with the equivalent of a ktime. No need to create
a delta against the current time, the ktime can be used directly.

A new clock device function 'set_next_ktime' is introduced that is called
with the unmodified ktime for the timer if the clock event device has the 
CLOCK_EVT_FEAT_KTIME bit set.

Signed-off-by: Martin Schwidefsky 
Cc: john stultz 
Link: http://lkml.kernel.org/r/20110823133142.815350967@de.ibm.com
Signed-off-by: Thomas Gleixner