Commit Graph

7 Commits

Author SHA1 Message Date
Thomas Gleixner
a5a1d1c291 clocksource: Use a plain u64 instead of cycle_t
There is no point in having an extra type for extra confusion. u64 is
unambiguous.

Conversion was done with the following coccinelle script:

@rem@
@@
-typedef u64 cycle_t;

@fix@
typedef cycle_t;
@@
-cycle_t
+u64

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: John Stultz <john.stultz@linaro.org>
2016-12-25 11:04:12 +01:00
Viresh Kumar
a54868b460 ARM: ep93xx/timer: Migrate to new 'set-state' interface
Migrate EP93xx driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.

This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13 11:23:27 +02:00
Linus Walleij
8ed3912e17 ARM: ep93xx: update comment on timer usage
When refactoring the EP93xx timer some of the documentation
git out of date. Update it.

Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17 11:49:54 +02:00
Linus Walleij
d5878e6e22 ARM: ep93xx: switch clockevent to timer 3
If we switch clock events to timer 3 we will have more bits to
use and can sleep longer when using NO_HZ.

Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-08 16:22:40 +02:00
Linus Walleij
d118d977c1 ARM: ep93xx: use non-raw accessors for timer
The timer has no business using __raw accessors, in this case
the readl/writel makes perfect sense as the changes really need
to hit these registers before we continue.

Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-08 16:22:40 +02:00
Linus Walleij
000bc17817 ARM: ep93xx: switch to GENERIC_CLOCKEVENTS
This switches the EP93xx to use GENERIC_CLOCKEVENTS and
CLKSRC_MMIO. Also implements a sched_clock() hook.
Tested on the SIM.ONE. Use only oneshot events.

Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-08 16:22:39 +02:00
Linus Walleij
361c81f996 ARM: ep93xx: move timer to its own file
This breaks the timer code out of the core file in preparation
for refactoring.

Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-08 16:22:39 +02:00