score/time: Set ->min_delta_ticks and ->max_delta_ticks

In preparation for making the clockevents core NTP correction aware,
all clockevent device drivers must set ->min_delta_ticks and
->max_delta_ticks rather than ->min_delta_ns and ->max_delta_ns: a
clockevent device's rate is going to change dynamically and thus, the
ratio of ns to ticks ceases to stay invariant.

Make the score arch's clockevent driver initialize these fields properly.

This patch alone doesn't introduce any change in functionality as the
clockevents core still looks exclusively at the (untouched) ->min_delta_ns
and ->max_delta_ns. As soon as this has changed, a followup patch will
purge the initialization of ->min_delta_ns and ->max_delta_ns from this
driver.

Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Chen Liqin <liqin.linux@gmail.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Nicolai Stange <nicstange@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>

diff --git a/arch/score/kernel/time.c b/arch/score/kernel/time.c
index 679b8d7b0350a5943532b8274ddd1d3b2c00ab51..29aafc741f69e6cca4fd0e7a1ec054d37f418c7b 100644 (file)
--- a/arch/score/kernel/time.c
+++ b/arch/score/kernel/time.c
@@ -81,8 +81,10 @@ void __init time_init(void)
                                        score_clockevent.shift);
        score_clockevent.max_delta_ns = clockevent_delta2ns((u32)~0,
                                        &score_clockevent);
+       score_clockevent.max_delta_ticks = (u32)~0;
        score_clockevent.min_delta_ns = clockevent_delta2ns(50,
                                                &score_clockevent) + 1;
+       score_clockevent.min_delta_ticks = 50;
        score_clockevent.cpumask = cpumask_of(0);
        clockevents_register_device(&score_clockevent);
 }