02 Mar, 2010
1 commit
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* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
posix-timers.c: Don't export local functions
clocksource: start CMT at clocksource resume
clocksource: add suspend callback
clocksource: add argument to resume callback
ntp: Cleanup xtime references in ntp.c
ntp: Make time_esterror and time_maxerror static
25 Feb, 2010
1 commit
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All of the SH clocksource drivers follow the scheme that the IRQ is setup
prior to registering the clockevent. The interrupt handler in the
clockevent cases looks to the event handler function pointer being filled
in by the registration code, permitting us to get in to situations where
asserted IRQs step in to the handler before registration has had a chance
to complete and hitting a NULL pointer deref.In practice this is not an issue for most platforms, but some of them
with fairly special loaders (or that are chain-loading from another
kernel) may enter in to this situation. This fixes up the oops reported
by Rafael on hp6xx.Reported-and-tested-by: Rafael Ignacio Zurita
Cc: stable@kernel.org
Signed-off-by: Paul Mundt
05 Feb, 2010
1 commit
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Add code to start the CMT timer on clocksource resume. While at it handle
the suspend case as well. Remove the platform device specific suspend
calls.This makes sure the timer is started during sysdev_resume(). Without this
patch the clocksource may be read as suspended, this after sysdev resume
but before platform device resume.Signed-off-by: Magnus Damm
Cc: john stultz
Cc: Paul Mundt
Signed-off-by: Andrew Morton
Signed-off-by: Thomas Gleixner
15 Aug, 2009
1 commit
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This patch updates the SuperH CMT driver with suspend and resume
callbacks for the suspend-to-ram case. This patch stops the CMT
channel at suspend time to avoid unwanted wake up events.Signed-off-by: Magnus Damm
Signed-off-by: Paul Mundt
17 Jun, 2009
1 commit
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Modify the CMT and TMU drivers to disable interrupts when
disabling the timer. Only using start/stop bits is not
enough.This fixes a bootup hang on Migo-R when the CMT is replaced
by TMU for clockevents but the CMT keeps on delivering irqs
even though the timer start bit is off.Signed-off-by: Magnus Damm
Signed-off-by: Paul Mundt
14 Jun, 2009
1 commit
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The irqaction.mask is legacy code that is wholly unused and going away,
so simply drop its use in the SH drivers completely.Fixes up build failures in -next.
Signed-off-by: Paul Mundt
03 May, 2009
2 commits
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Neither of these need to be exported, so just make them static.
Signed-off-by: Paul Mundt
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All of the SH timers use a roughly identical structure for platform data,
which presently is broken out for each block. Consolidate all of these
definitions, as there is no reason for them to be broken out in the first
place.Signed-off-by: Paul Mundt
30 Apr, 2009
1 commit
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This patch contains various fixes for 16-bit cmt hardware.
With this applied periodic clockevents work fine on sh7203.Signed-off-by: Magnus Damm
Signed-off-by: Paul Mundt
28 Apr, 2009
2 commits
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This patch moves the SuperH timer setup code from time_init()
to late_time_init(). Good things about this change:
- interrupts: they are enabled at late_time_init()
- mm: regular kmalloc() can be used at late_time_init()Together with moving to late_time_init() this patch changes
the sh_cmt driver to always allocate with kmalloc(). This
simplifies the code a bit and also fixes section mismatches.Signed-off-by: Magnus Damm
Signed-off-by: Paul Mundt -
This patch improves the sh_cmt clocksource handling.
Currently the counter value is ignored in the case of
overflow. With this patch the overflow flag is read
before and after reading the counter, removing any
counter value and overflow flag mismatch issues.Signed-off-by: Magnus Damm
Signed-off-by: Paul Mundt
22 Apr, 2009
1 commit
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Add clocksource support to the sh_cmt driver. With this in
place we can do tickless with a single CMT channel.Signed-off-by: Magnus Damm
Signed-off-by: Paul Mundt
19 Apr, 2009
1 commit
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Add Early Platform Driver support to the sh_cmt driver
using the earlytimer class.Signed-off-by: Magnus Damm
Signed-off-by: Paul Mundt
02 Apr, 2009
1 commit
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Update the sh_cmt driver to make use of recent irq and clockevent changes:
- use remove_irq() together with setup_irq()
- remove mult workaround since WARN_ON() now has been movedSigned-off-by: Magnus Damm
Signed-off-by: Paul Mundt
29 Jan, 2009
1 commit
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SuperH CMT clockevent driver.
Both 16-bit and 32-bit CMT versions are supported, but only 32-bit
is tested. This driver contains support for both clockevents and
clocksources, but no unregistration is supported at this point.Works fine as clock source and/or event in periodic or oneshot mode.
Tested on sh7722 and sh7723, but should work with any cpu/architecture.This version is lacking clocksource and early platform driver support
for now - this to minimize the amount of dependencies.Signed-off-by: Magnus Damm
Signed-off-by: Paul Mundt