ARM: use clockevents_config_and_register() where possible
The clockevent core is able to figure out the best mult and shift,
calculate min_delta_ns and max_delta_ns, with the necessary info passed
into clockevents_config_and_register(). Use this combined configure
and register function where possible to make the codes less error prone
and gain some positive diff stat.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Tested-by: Roland Stigge <stigge@antcom.de>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: David Brown <davidb@codeaurora.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Acked-by: Barry Song <baohua.song@csr.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/arm/mach-imx/time.c b/arch/arm/mach-imx/time.c
index f017302..62769df 100644
--- a/arch/arm/mach-imx/time.c
+++ b/arch/arm/mach-imx/time.c
@@ -256,7 +256,6 @@
static struct clock_event_device clockevent_mxc = {
.name = "mxc_timer1",
.features = CLOCK_EVT_FEAT_ONESHOT,
- .shift = 32,
.set_mode = mxc_set_mode,
.set_next_event = mx1_2_set_next_event,
.rating = 200,
@@ -264,21 +263,13 @@
static int __init mxc_clockevent_init(struct clk *timer_clk)
{
- unsigned int c = clk_get_rate(timer_clk);
-
if (timer_is_v2())
clockevent_mxc.set_next_event = v2_set_next_event;
- clockevent_mxc.mult = div_sc(c, NSEC_PER_SEC,
- clockevent_mxc.shift);
- clockevent_mxc.max_delta_ns =
- clockevent_delta2ns(0xfffffffe, &clockevent_mxc);
- clockevent_mxc.min_delta_ns =
- clockevent_delta2ns(0xff, &clockevent_mxc);
-
clockevent_mxc.cpumask = cpumask_of(0);
-
- clockevents_register_device(&clockevent_mxc);
+ clockevents_config_and_register(&clockevent_mxc,
+ clk_get_rate(timer_clk),
+ 0xff, 0xfffffffe);
return 0;
}