Commit-ID: 33ae7a9b6c23cdffe7449ddf1a992117262b939b Gitweb: http://git.kernel.org/tip/33ae7a9b6c23cdffe7449ddf1a992117262b939b Author: Nicolai Stange <nicstange@xxxxxxxxx> AuthorDate: Thu, 30 Mar 2017 21:44:31 +0200 Committer: John Stultz <john.stultz@xxxxxxxxxx> CommitDate: Fri, 14 Apr 2017 13:11:10 -0700 m68k/coldfire/pit: 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 m68k arch's coldfire 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: Greg Ungerer <gerg@xxxxxxxxxxxxxx> CC: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Cc: linux-m68k@xxxxxxxxxxxxxxxxxxxx Acked-by: Greg Ungerer <gerg@xxxxxxxxxxxxxx> Signed-off-by: Nicolai Stange <nicstange@xxxxxxxxx> Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx> --- arch/m68k/coldfire/pit.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/m68k/coldfire/pit.c b/arch/m68k/coldfire/pit.c index 175553d..6c08780 100644 --- a/arch/m68k/coldfire/pit.c +++ b/arch/m68k/coldfire/pit.c @@ -149,8 +149,10 @@ void hw_timer_init(irq_handler_t handler) cf_pit_clockevent.mult = div_sc(FREQ, NSEC_PER_SEC, 32); cf_pit_clockevent.max_delta_ns = clockevent_delta2ns(0xFFFF, &cf_pit_clockevent); + cf_pit_clockevent.max_delta_ticks = 0xFFFF; cf_pit_clockevent.min_delta_ns = clockevent_delta2ns(0x3f, &cf_pit_clockevent); + cf_pit_clockevent.min_delta_ticks = 0x3f; clockevents_register_device(&cf_pit_clockevent); setup_irq(MCF_IRQ_PIT1, &pit_irq); -- 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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