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authorNicolai Stange <nicstange@gmail.com>2017-03-30 22:48:28 +0300
committerJohn Stultz <john.stultz@linaro.org>2017-04-14 23:11:19 +0300
commit5f664e2b1bb1325c350192ead3f305742fcc79c7 (patch)
tree47bfca1252768da3f0bc5d78f59c2713af24be01 /arch/mn10300
parente1e5fc150da4233f2bf9c143068e1a673071a68f (diff)
downloadlinux-5f664e2b1bb1325c350192ead3f305742fcc79c7.tar.xz
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@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: David Howells <dhowells@redhat.com> Cc: linux-am33-list@redhat.com Signed-off-by: Nicolai Stange <nicstange@gmail.com> Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'arch/mn10300')
-rw-r--r--arch/mn10300/kernel/cevt-mn10300.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mn10300/kernel/cevt-mn10300.c b/arch/mn10300/kernel/cevt-mn10300.c
index d9b34dd44f04..2b21bbc9efa4 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());