[tip:timers/core] mn10300/cevt-mn10300: Set ->min_delta_ticks and ->max_delta_ticks

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Commit-ID:  5f664e2b1bb1325c350192ead3f305742fcc79c7
Gitweb:     http://git.kernel.org/tip/5f664e2b1bb1325c350192ead3f305742fcc79c7
Author:     Nicolai Stange <nicstange@xxxxxxxxx>
AuthorDate: Thu, 30 Mar 2017 21:48:28 +0200
Committer:  John Stultz <john.stultz@xxxxxxxxxx>
CommitDate: Fri, 14 Apr 2017 13:11:19 -0700

mn10300/cevt-mn10300: 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 mn10300 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: David Howells <dhowells@xxxxxxxxxx>
Cc: linux-am33-list@xxxxxxxxxx
Signed-off-by: Nicolai Stange <nicstange@xxxxxxxxx>
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
---
 arch/mn10300/kernel/cevt-mn10300.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/mn10300/kernel/cevt-mn10300.c b/arch/mn10300/kernel/cevt-mn10300.c
index d9b34dd..2b21bbc 100644
--- a/arch/mn10300/kernel/cevt-mn10300.c
+++ b/arch/mn10300/kernel/cevt-mn10300.c
@@ -98,7 +98,9 @@ int __init init_clockevents(void)
 
 	/* Calculate the min / max delta */
 	cd->max_delta_ns	= clockevent_delta2ns(TMJCBR_MAX, cd);
+	cd->max_delta_ticks	= TMJCBR_MAX;
 	cd->min_delta_ns	= clockevent_delta2ns(100, cd);
+	cd->min_delta_ticks	= 100;
 
 	cd->rating		= 200;
 	cd->cpumask		= cpumask_of(smp_processor_id());
--
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