linux-toradex.git/arch/avr32/kernel/time.c, branch v3.1.2

avr32: Convert to clocksource_register_hz

2011-01-13T19:41:11+00:00

This converts the avr32 clocksource to use clocksource_register_hz.

This is untested, so any assistance in testing would be appreciated!

CC: Hans-Christian Egtvedt 
CC: Thomas Gleixner 
Signed-off-by: John Stultz

avr32: Fix typo in read_persistent_clock()

2010-04-27T13:26:24+00:00

Fix fallout from the persistent_clock changes.

Signed-off-by: Peter Huewe 
Cc: John Stultz 
Cc: Haavard Skinnemoen 
Signed-off-by: Thomas Gleixner

avr32: Convert avr32 to use read/update_persistent_clock

2010-03-13T00:14:10+00:00

This patch converts the avr32 architecture to use the generic
read_persistent_clock and update_persistent_clock interfaces, reducing
the amount of arch specific code we have to maintain, and allowing for
further cleanups in the future.

I have not built or tested this patch, so help from arch maintainers
would be appreciated.

Signed-off-by: John Stultz 
Cc: Haavard Skinnemoen 
Cc: Andrew Morton 
LKML-Reference: <1267675049-12337-7-git-send-email-johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner

clocksource: pass clocksource to read() callback

2009-04-21T20:41:47+00:00

Pass clocksource pointer to the read() callback for clocksources.  This
allows us to share the callback between multiple instances.

[hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods]
[akpm@linux-foundation.org: cleanup]
Signed-off-by: Magnus Damm 
Acked-by: John Stultz 
Cc: Thomas Gleixner 
Signed-off-by: Hugh Dickins 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cpumask: convert struct clock_event_device to cpumask pointers.

2008-12-13T10:50:26+00:00

Impact: change calling convention of existing clock_event APIs

struct clock_event_timer's cpumask field gets changed to take pointer,
as does the ->broadcast function.

Another single-patch change.  For safety, we BUG_ON() in
clockevents_register_device() if it's not set.

Signed-off-by: Rusty Russell 
Cc: Ingo Molnar

avr32: Use instead of

2008-08-05T12:36:57+00:00

Update all avr32-specific files to use the new platform-specific header
locations. Drivers shared with ARM are left alone for now.

Signed-off-by: Haavard Skinnemoen

avr32: allow system timer to share interrupt to make OProfile work

2008-07-25T12:31:29+00:00

The following patch allows the avr32_comparator interrupt to be shared.
This is necessary as the avr32 oprofile driver shares the irq group 0
with the timer.

To make OProfile actually work on AVR32, a small patch for oprofiled is
also needed (posted to the oprofile mailing list).

Signed-off-by: Nikolaus Voss 
[haavard.skinnemoen@atmel.com: set IRQF_SHARED unconditionally]
Signed-off-by: Haavard Skinnemoen

avr32: Clean up time.c #includes

2008-06-27T15:48:04+00:00

Remove lots of unneeded #includes, add #include  and
sort alphabetically.

Signed-off-by: Haavard Skinnemoen

avr32: Generic clockevents support

2008-04-20T00:40:08+00:00

This combines three patches from David Brownell:
  * avr32: tclib support
  * avr32: simplify clocksources
  * avr32: Turn count/compare into a oneshot clockevent device

Register both TC blocks (instead of just the first one) so that
the AT32/AT91 tclib code will pick them up (instead of just the
avr32-only PIT-style clocksource).

Rename the first one and its resources appropriately.

More cleanups to the cycle counter clocksource code

 - Disable all the weak symbol magic; remove the AVR32-only TCB-based
   clocksource code (source and header).

 - Mark the __init code properly.

 - Don't forget to report IRQF_TIMER.

 - Make the system work properly with this clocksource, by preventing
   use of the CPU "idle" sleep state in the idle loop when it's used.

Package the avr32 count/compare timekeeping support as a oneshot
clockevent device, so it supports NO_HZ and high res timers.
This means it also supports plugging in other clockevent devices
and clocksources.

Signed-off-by: David Brownell 
Signed-off-by: Haavard Skinnemoen

avr32: start clocksource cleanup

2008-04-20T00:40:06+00:00

Start cleaning up the AVR32 clocksource mess, starting with the cycle
counter clocksource:  remove unneeded pseudo-RTC (just inline that
call to mktime) and associated build warning, and unused sysdev.

Add comment about the problem using the cycle counter register,
and adjust the clocksource rating accordingly.  Later patches can
make this usable again (by disabling use of the idle state and
providing a proper clocksource without the weak binding hacks)
and move towards TCB-based clockevent support (including high
resolution timers) that's shared between AT91 and AVR32.

Signed-off-by: David Brownell 
Signed-off-by: Haavard Skinnemoen