Merge branch 'fortglx/3.13/time' of git://git.linaro.org/people/jstultz/linux into timers/core

Pull more timekeeping items for v3.13 from John Stultz:

  * Small cleanup in the clocksource code.

  * Fix for rtc-pl031 to let it work with alarmtimers.

  * Move arm64 to using the generic sched_clock framework & resulting
    cleanup in the generic sched_clock code.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index b94b0d44c158..f655036b524f 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -20,6 +20,7 @@
 #include <linux/of_address.h>
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/sched_clock.h>
 
 #include <asm/arch_timer.h>
 #include <asm/virt.h>
@@ -514,6 +515,15 @@ static int __init arch_timer_register(void)
                 goto out;
         }
 
+        clocksource_register_hz(&clocksource_counter, arch_timer_rate);
+        cyclecounter.mult = clocksource_counter.mult;
+        cyclecounter.shift = clocksource_counter.shift;
+        timecounter_init(&timecounter, &cyclecounter,
+                         arch_counter_get_cntvct());
+
+        /* 56 bits minimum, so we assume worst case rollover */
+        sched_clock_register(arch_timer_read_counter, 56, arch_timer_rate);
+
         if (arch_timer_use_virtual) {
                 ppi = arch_timer_ppi[VIRT_PPI];
                 err = request_percpu_irq(ppi, arch_timer_handler_virt,