Commit-ID: e1e5fc150da4233f2bf9c143068e1a673071a68f Gitweb: http://git.kernel.org/tip/e1e5fc150da4233f2bf9c143068e1a673071a68f Author: Nicolai Stange <nicstange@xxxxxxxxx> AuthorDate: Thu, 30 Mar 2017 21:42:20 +0200 Committer: John Stultz <john.stultz@xxxxxxxxxx> CommitDate: Fri, 14 Apr 2017 13:11:18 -0700 c6x/timer64: 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 c6x 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@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> Cc: Richard Cochran <richardcochran@xxxxxxxxx> Cc: Prarit Bhargava <prarit@xxxxxxxxxx> Cc: Stephen Boyd <sboyd@xxxxxxxxxxxxxx> Cc: Mark Salter <msalter@xxxxxxxxxx> Cc: Aurelien Jacquiot <a-jacquiot@xxxxxx> Cc: linux-c6x-dev@xxxxxxxxxxxxx Signed-off-by: Nicolai Stange <nicstange@xxxxxxxxx> Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx> --- arch/c6x/platforms/timer64.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/c6x/platforms/timer64.c b/arch/c6x/platforms/timer64.c index c19901e..0bd0452 100644 --- a/arch/c6x/platforms/timer64.c +++ b/arch/c6x/platforms/timer64.c @@ -234,7 +234,9 @@ void __init timer64_init(void) clockevents_calc_mult_shift(cd, c6x_core_freq / TIMER_DIVISOR, 5); cd->max_delta_ns = clockevent_delta2ns(0x7fffffff, cd); + cd->max_delta_ticks = 0x7fffffff; cd->min_delta_ns = clockevent_delta2ns(250, cd); + cd->min_delta_ticks = 250; cd->cpumask = cpumask_of(smp_processor_id()); -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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