01 Mar, 2012
1 commit
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Some SoC have a 32 bit variant of Timer Counter Blocks. We do not
need the chaining of two 16 bit counters anymore for them.The SoC nature is deduced from the device tree "compatible" string.
For non-device-tree configurations, backward compatibility is maintained
by using the default 16 bit counter configuration.This patch addresses both the atmel_tclib and its user: tcb_clksrc
clocksource.Signed-off-by: Nicolas Ferre
Acked-by: Jean-Christophe PLAGNIOL-VILLARD
Acked-by: Grant Likely
22 Nov, 2011
1 commit
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Convert tcb_clksrc to use clocksource_register_hz.
CC: Nikolaus Voss
CC: Thomas Gleixner
Acked-by: Nikolaus Voss
Signed-off-by: John Stultz
26 Jan, 2011
1 commit
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setup_irq() was called before clockevents_register_device() which is
needed by the irq handler. Bug was reproducible by restarting the
kernel using kexec (reliable crash).Signed-off-by: Nikolaus Voss
Cc: David Brownell
Cc: Haavard Skinnemoen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Apr, 2009
1 commit
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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
13 Dec, 2008
1 commit
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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
14 Mar, 2008
1 commit
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Does that have something analagous to this "remove warnings" patch?
Seems setup_clkevents() no longer needs a t0_clk parameter either...Signed-off-by: Haavard Skinnemoen
04 Mar, 2008
1 commit
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Clocksource and clockevent device based on the Atmel TC blocks.
The clockevent device handles both periodic and oneshot modes, so this
enables NO_HZ and high res timers on some platforms that previously
couldn't use those mechanisms.This works on both AVR32 and AT91 chips, given relevant patches for
tclib support (always) and clockevents (or else this will only look
like a higher precision clocksource). It's an updated and modularized
version of an AT91-only patch that has circulated for some time now.Changes relative to the original patch:
* Update to use new tclib API
* Replace open-coded do-while loop using goto with a real do-while loop
* Minor irq handler optimization: Load register base address from
dev_id instead of a global variable.
* Aggressively turn off clocks when the clockevent isn't being used
* Include the clockevent code on AT91RM9200 as well. The rating is
lower than the System Timer, so the clock will usually stay off.
* Don't assume that the number of clocks is always equal to the
number of irqs.Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen