diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2013-01-12 15:50:05 +0400 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-01-14 22:12:42 +0400 |
| commit | 838a2ae80a6ab52139fb1bf0a93ea8c5eff94488 (patch) | |
| tree | 5e5fbbc2005b012318b7474f9c6057b9ff3f3814 /arch/arm/mach-mxs | |
| parent | c35ef95c273c06471818f9245a05ac5a6e3ffa34 (diff) | |
| download | linux-838a2ae80a6ab52139fb1bf0a93ea8c5eff94488.tar.xz | |
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>
Diffstat (limited to 'arch/arm/mach-mxs')
| -rw-r--r-- | arch/arm/mach-mxs/timer.c | 24 |
1 files changed, 5 insertions, 19 deletions
diff --git a/arch/arm/mach-mxs/timer.c b/arch/arm/mach-mxs/timer.c index 856f4c796061..27451b1ba3f1 100644 --- a/arch/arm/mach-mxs/timer.c +++ b/arch/arm/mach-mxs/timer.c @@ -195,7 +195,6 @@ static void mxs_set_mode(enum clock_event_mode mode, static struct clock_event_device mxs_clockevent_device = { .name = "mxs_timrot", .features = CLOCK_EVT_FEAT_ONESHOT, - .shift = 32, .set_mode = mxs_set_mode, .set_next_event = timrotv2_set_next_event, .rating = 200, @@ -203,25 +202,12 @@ static struct clock_event_device mxs_clockevent_device = { static int __init mxs_clockevent_init(struct clk *timer_clk) { - unsigned int c = clk_get_rate(timer_clk); - - mxs_clockevent_device.mult = - div_sc(c, NSEC_PER_SEC, mxs_clockevent_device.shift); - mxs_clockevent_device.cpumask = cpumask_of(0); - if (timrot_is_v1()) { + if (timrot_is_v1()) mxs_clockevent_device.set_next_event = timrotv1_set_next_event; - mxs_clockevent_device.max_delta_ns = - clockevent_delta2ns(0xfffe, &mxs_clockevent_device); - mxs_clockevent_device.min_delta_ns = - clockevent_delta2ns(0xf, &mxs_clockevent_device); - } else { - mxs_clockevent_device.max_delta_ns = - clockevent_delta2ns(0xfffffffe, &mxs_clockevent_device); - mxs_clockevent_device.min_delta_ns = - clockevent_delta2ns(0xf, &mxs_clockevent_device); - } - - clockevents_register_device(&mxs_clockevent_device); + mxs_clockevent_device.cpumask = cpumask_of(0); + clockevents_config_and_register(&mxs_clockevent_device, + clk_get_rate(timer_clk), 0xf, + timrot_is_v1() ? 0xfffe : 0xfffffffe); return 0; } |