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Subject[PATCH v2 2/3] ARM: use clockevents_config_and_register() where possible
Date
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>
---
arch/arm/mach-at91/at91rm9200_time.c | 7 ++-----
arch/arm/mach-cns3xxx/core.c | 13 +++----------
arch/arm/mach-exynos/mct.c | 18 ++++--------------
arch/arm/mach-footbridge/dc21285-timer.c | 6 +-----
arch/arm/mach-imx/epit.c | 15 +++------------
arch/arm/mach-imx/time.c | 15 +++------------
arch/arm/mach-ixp4xx/common.c | 11 ++---------
arch/arm/mach-lpc32xx/timer.c | 9 +--------
arch/arm/mach-mmp/time.c | 7 ++-----
arch/arm/mach-msm/timer.c | 6 +-----
arch/arm/mach-mxs/timer.c | 24 +++++-------------------
arch/arm/mach-netx/time.c | 10 ++--------
arch/arm/mach-omap1/time.c | 11 ++---------
arch/arm/mach-omap1/timer32k.c | 12 ++----------
arch/arm/mach-omap2/timer.c | 13 +++----------
arch/arm/mach-prima2/timer.c | 10 ++--------
arch/arm/mach-pxa/time.c | 8 ++------
arch/arm/mach-sa1100/time.c | 8 ++------
arch/arm/mach-tegra/timer.c | 8 ++------
arch/arm/mach-vt8500/timer.c | 9 ++-------
arch/arm/mach-w90x900/time.c | 10 ++--------
arch/arm/plat-iop/time.c | 9 ++-------
arch/arm/plat-orion/time.c | 6 +-----
arch/arm/plat-samsung/s5p-time.c | 9 +--------
arch/arm/plat-spear/time.c | 8 +-------
25 files changed, 53 insertions(+), 209 deletions(-)

diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c
index cafe988..20a28ac 100644
--- a/arch/arm/mach-at91/at91rm9200_time.c
+++ b/arch/arm/mach-at91/at91rm9200_time.c
@@ -174,7 +174,6 @@ clkevt32k_next_event(unsigned long delta, struct clock_event_device *dev)
static struct clock_event_device clkevt = {
.name = "at91_tick",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .shift = 32,
.rating = 150,
.set_next_event = clkevt32k_next_event,
.set_mode = clkevt32k_mode,
@@ -265,11 +264,9 @@ void __init at91rm9200_timer_init(void)
at91_st_write(AT91_ST_RTMR, 1);

/* Setup timer clockevent, with minimum of two ticks (important!!) */
- clkevt.mult = div_sc(AT91_SLOW_CLOCK, NSEC_PER_SEC, clkevt.shift);
- clkevt.max_delta_ns = clockevent_delta2ns(AT91_ST_ALMV, &clkevt);
- clkevt.min_delta_ns = clockevent_delta2ns(2, &clkevt) + 1;
clkevt.cpumask = cpumask_of(0);
- clockevents_register_device(&clkevt);
+ clockevents_config_and_register(&clkevt, AT91_SLOW_CLOCK,
+ 2, AT91_ST_ALMV);

/* register clocksource */
clocksource_register_hz(&clk32k, AT91_SLOW_CLOCK);
diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
index 031805b..3eb74d1 100644
--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
@@ -134,7 +134,6 @@ static int cns3xxx_timer_set_next_event(unsigned long evt,

static struct clock_event_device cns3xxx_tmr1_clockevent = {
.name = "cns3xxx timer1",
- .shift = 8,
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.set_mode = cns3xxx_timer_set_mode,
.set_next_event = cns3xxx_timer_set_next_event,
@@ -145,15 +144,9 @@ static struct clock_event_device cns3xxx_tmr1_clockevent = {
static void __init cns3xxx_clockevents_init(unsigned int timer_irq)
{
cns3xxx_tmr1_clockevent.irq = timer_irq;
- cns3xxx_tmr1_clockevent.mult =
- div_sc((cns3xxx_cpu_clock() >> 3) * 1000000, NSEC_PER_SEC,
- cns3xxx_tmr1_clockevent.shift);
- cns3xxx_tmr1_clockevent.max_delta_ns =
- clockevent_delta2ns(0xffffffff, &cns3xxx_tmr1_clockevent);
- cns3xxx_tmr1_clockevent.min_delta_ns =
- clockevent_delta2ns(0xf, &cns3xxx_tmr1_clockevent);
-
- clockevents_register_device(&cns3xxx_tmr1_clockevent);
+ clockevents_config_and_register(&cns3xxx_tmr1_clockevent,
+ (cns3xxx_cpu_clock() >> 3) * 1000000,
+ 0xf, 0xffffffff);
}

/*
diff --git a/arch/arm/mach-exynos/mct.c b/arch/arm/mach-exynos/mct.c
index 57668eb..070d51e 100644
--- a/arch/arm/mach-exynos/mct.c
+++ b/arch/arm/mach-exynos/mct.c
@@ -255,13 +255,9 @@ static struct irqaction mct_comp_event_irq = {

static void exynos4_clockevent_init(void)
{
- clockevents_calc_mult_shift(&mct_comp_device, clk_rate, 5);
- mct_comp_device.max_delta_ns =
- clockevent_delta2ns(0xffffffff, &mct_comp_device);
- mct_comp_device.min_delta_ns =
- clockevent_delta2ns(0xf, &mct_comp_device);
mct_comp_device.cpumask = cpumask_of(0);
- clockevents_register_device(&mct_comp_device);
+ clockevents_config_and_register(&mct_comp_device, clk_rate,
+ 0xf, 0xffffffff);

if (soc_is_exynos5250())
setup_irq(EXYNOS5_IRQ_MCT_G0, &mct_comp_event_irq);
@@ -404,14 +400,8 @@ static int __cpuinit exynos4_local_timer_setup(struct clock_event_device *evt)
evt->set_mode = exynos4_tick_set_mode;
evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
evt->rating = 450;
-
- clockevents_calc_mult_shift(evt, clk_rate / (TICK_BASE_CNT + 1), 5);
- evt->max_delta_ns =
- clockevent_delta2ns(0x7fffffff, evt);
- evt->min_delta_ns =
- clockevent_delta2ns(0xf, evt);
-
- clockevents_register_device(evt);
+ clockevents_config_and_register(evt, clk_rate / (TICK_BASE_CNT + 1),
+ 0xf, 0x7fffffff);

exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET);

diff --git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c
index 3b54196..a9918b6 100644
--- a/arch/arm/mach-footbridge/dc21285-timer.c
+++ b/arch/arm/mach-footbridge/dc21285-timer.c
@@ -101,12 +101,8 @@ static void __init footbridge_timer_init(void)

setup_irq(ce->irq, &footbridge_timer_irq);

- clockevents_calc_mult_shift(ce, mem_fclk_21285, 5);
- ce->max_delta_ns = clockevent_delta2ns(0xffffff, ce);
- ce->min_delta_ns = clockevent_delta2ns(0x000004, ce);
ce->cpumask = cpumask_of(smp_processor_id());
-
- clockevents_register_device(ce);
+ clockevents_config_and_register(ce, mem_fclk_21285, 0x4, 0xffffff);
}

struct sys_timer footbridge_timer = {
diff --git a/arch/arm/mach-imx/epit.c b/arch/arm/mach-imx/epit.c
index 04a5961..e02de18 100644
--- a/arch/arm/mach-imx/epit.c
+++ b/arch/arm/mach-imx/epit.c
@@ -178,7 +178,6 @@ static struct irqaction epit_timer_irq = {
static struct clock_event_device clockevent_epit = {
.name = "epit",
.features = CLOCK_EVT_FEAT_ONESHOT,
- .shift = 32,
.set_mode = epit_set_mode,
.set_next_event = epit_set_next_event,
.rating = 200,
@@ -186,18 +185,10 @@ static struct clock_event_device clockevent_epit = {

static int __init epit_clockevent_init(struct clk *timer_clk)
{
- unsigned int c = clk_get_rate(timer_clk);
-
- clockevent_epit.mult = div_sc(c, NSEC_PER_SEC,
- clockevent_epit.shift);
- clockevent_epit.max_delta_ns =
- clockevent_delta2ns(0xfffffffe, &clockevent_epit);
- clockevent_epit.min_delta_ns =
- clockevent_delta2ns(0x800, &clockevent_epit);
-
clockevent_epit.cpumask = cpumask_of(0);
-
- clockevents_register_device(&clockevent_epit);
+ clockevents_config_and_register(&clockevent_epit,
+ clk_get_rate(timer_clk),
+ 0x800, 0xfffffffe);

return 0;
}
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 irqaction mxc_timer_irq = {
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 struct clock_event_device clockevent_mxc = {

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;
}
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 8c0c0e2..65ff98c 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -523,22 +523,15 @@ static struct clock_event_device clockevent_ixp4xx = {
.name = "ixp4xx timer1",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.rating = 200,
- .shift = 24,
.set_mode = ixp4xx_set_mode,
.set_next_event = ixp4xx_set_next_event,
};

static void __init ixp4xx_clockevent_init(void)
{
- clockevent_ixp4xx.mult = div_sc(IXP4XX_TIMER_FREQ, NSEC_PER_SEC,
- clockevent_ixp4xx.shift);
- clockevent_ixp4xx.max_delta_ns =
- clockevent_delta2ns(0xfffffffe, &clockevent_ixp4xx);
- clockevent_ixp4xx.min_delta_ns =
- clockevent_delta2ns(0xf, &clockevent_ixp4xx);
clockevent_ixp4xx.cpumask = cpumask_of(0);
-
- clockevents_register_device(&clockevent_ixp4xx);
+ clockevents_config_and_register(&clockevent_ixp4xx, IXP4XX_TIMER_FREQ,
+ 0xf, 0xfffffffe);
}

void ixp4xx_restart(char mode, const char *cmd)
diff --git a/arch/arm/mach-lpc32xx/timer.c b/arch/arm/mach-lpc32xx/timer.c
index c40667c..502b3c6 100644
--- a/arch/arm/mach-lpc32xx/timer.c
+++ b/arch/arm/mach-lpc32xx/timer.c
@@ -70,7 +70,6 @@ static void lpc32xx_clkevt_mode(enum clock_event_mode mode,
static struct clock_event_device lpc32xx_clkevt = {
.name = "lpc32xx_clkevt",
.features = CLOCK_EVT_FEAT_ONESHOT,
- .shift = 32,
.rating = 300,
.set_next_event = lpc32xx_clkevt_next_event,
.set_mode = lpc32xx_clkevt_mode,
@@ -141,14 +140,8 @@ static void __init lpc32xx_timer_init(void)
setup_irq(IRQ_LPC32XX_TIMER0, &lpc32xx_timer_irq);

/* Setup the clockevent structure. */
- lpc32xx_clkevt.mult = div_sc(clkrate, NSEC_PER_SEC,
- lpc32xx_clkevt.shift);
- lpc32xx_clkevt.max_delta_ns = clockevent_delta2ns(-1,
- &lpc32xx_clkevt);
- lpc32xx_clkevt.min_delta_ns = clockevent_delta2ns(1,
- &lpc32xx_clkevt) + 1;
lpc32xx_clkevt.cpumask = cpumask_of(0);
- clockevents_register_device(&lpc32xx_clkevt);
+ clockevents_config_and_register(&lpc32xx_clkevt, clkrate, 1, -1);

/* Use timer1 as clock source. */
__raw_writel(LPC32XX_TIMER_CNTR_TCR_RESET,
diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c
index 936447c..86a18b3 100644
--- a/arch/arm/mach-mmp/time.c
+++ b/arch/arm/mach-mmp/time.c
@@ -141,7 +141,6 @@ static void timer_set_mode(enum clock_event_mode mode,
static struct clock_event_device ckevt = {
.name = "clockevent",
.features = CLOCK_EVT_FEAT_ONESHOT,
- .shift = 32,
.rating = 200,
.set_next_event = timer_set_next_event,
.set_mode = timer_set_mode,
@@ -198,15 +197,13 @@ void __init timer_init(int irq)

setup_sched_clock(mmp_read_sched_clock, 32, CLOCK_TICK_RATE);

- ckevt.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, ckevt.shift);
- ckevt.max_delta_ns = clockevent_delta2ns(MAX_DELTA, &ckevt);
- ckevt.min_delta_ns = clockevent_delta2ns(MIN_DELTA, &ckevt);
ckevt.cpumask = cpumask_of(0);

setup_irq(irq, &timer_irq);

clocksource_register_hz(&cksrc, CLOCK_TICK_RATE);
- clockevents_register_device(&ckevt);
+ clockevents_config_and_register(&ckevt, CLOCK_TICK_RATE,
+ MIN_DELTA, MAX_DELTA);
}

#ifdef CONFIG_OF
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c
index 476549a..b9e7449 100644
--- a/arch/arm/mach-msm/timer.c
+++ b/arch/arm/mach-msm/timer.c
@@ -144,13 +144,9 @@ static int __cpuinit msm_local_timer_setup(struct clock_event_device *evt)
evt->rating = msm_clockevent.rating;
evt->set_mode = msm_timer_set_mode;
evt->set_next_event = msm_timer_set_next_event;
- evt->shift = msm_clockevent.shift;
- evt->mult = div_sc(GPT_HZ, NSEC_PER_SEC, evt->shift);
- evt->max_delta_ns = clockevent_delta2ns(0xf0000000, evt);
- evt->min_delta_ns = clockevent_delta2ns(4, evt);

*__this_cpu_ptr(msm_evt.percpu_evt) = evt;
- clockevents_register_device(evt);
+ clockevents_config_and_register(evt, GPT_HZ, 4, 0xf0000000);
enable_percpu_irq(evt->irq, IRQ_TYPE_EDGE_RISING);
return 0;
}
diff --git a/arch/arm/mach-mxs/timer.c b/arch/arm/mach-mxs/timer.c
index 856f4c7..27451b1 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;
}
diff --git a/arch/arm/mach-netx/time.c b/arch/arm/mach-netx/time.c
index e24c141..d780a93 100644
--- a/arch/arm/mach-netx/time.c
+++ b/arch/arm/mach-netx/time.c
@@ -76,7 +76,6 @@ static int netx_set_next_event(unsigned long evt,

static struct clock_event_device netx_clockevent = {
.name = "netx-timer" __stringify(TIMER_CLOCKEVENT),
- .shift = 32,
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.set_next_event = netx_set_next_event,
.set_mode = netx_set_mode,
@@ -140,16 +139,11 @@ static void __init netx_timer_init(void)
clocksource_mmio_init(NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKSOURCE),
"netx_timer", CLOCK_TICK_RATE, 200, 32, clocksource_mmio_readl_up);

- netx_clockevent.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC,
- netx_clockevent.shift);
- netx_clockevent.max_delta_ns =
- clockevent_delta2ns(0xfffffffe, &netx_clockevent);
/* with max_delta_ns >= delta2ns(0x800) the system currently runs fine.
* Adding some safety ... */
- netx_clockevent.min_delta_ns =
- clockevent_delta2ns(0xa00, &netx_clockevent);
netx_clockevent.cpumask = cpumask_of(0);
- clockevents_register_device(&netx_clockevent);
+ clockevents_config_and_register(&netx_clockevent, CLOCK_TICK_RATE,
+ 0xa00, 0xfffffffe);
}

struct sys_timer netx_timer = {
diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c
index 4d4816f..5b7c556 100644
--- a/arch/arm/mach-omap1/time.c
+++ b/arch/arm/mach-omap1/time.c
@@ -145,7 +145,6 @@ static void omap_mpu_set_mode(enum clock_event_mode mode,
static struct clock_event_device clockevent_mpu_timer1 = {
.name = "mpu_timer1",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .shift = 32,
.set_next_event = omap_mpu_set_next_event,
.set_mode = omap_mpu_set_mode,
};
@@ -170,15 +169,9 @@ static __init void omap_init_mpu_timer(unsigned long rate)
setup_irq(INT_TIMER1, &omap_mpu_timer1_irq);
omap_mpu_timer_start(0, (rate / HZ) - 1, 1);

- clockevent_mpu_timer1.mult = div_sc(rate, NSEC_PER_SEC,
- clockevent_mpu_timer1.shift);
- clockevent_mpu_timer1.max_delta_ns =
- clockevent_delta2ns(-1, &clockevent_mpu_timer1);
- clockevent_mpu_timer1.min_delta_ns =
- clockevent_delta2ns(1, &clockevent_mpu_timer1);
-
clockevent_mpu_timer1.cpumask = cpumask_of(0);
- clockevents_register_device(&clockevent_mpu_timer1);
+ clockevents_config_and_register(&clockevent_mpu_timer1, rate,
+ 1, -1);
}


diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
index 41152fa..0b74246 100644
--- a/arch/arm/mach-omap1/timer32k.c
+++ b/arch/arm/mach-omap1/timer32k.c
@@ -140,7 +140,6 @@ static void omap_32k_timer_set_mode(enum clock_event_mode mode,
static struct clock_event_device clockevent_32k_timer = {
.name = "32k-timer",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .shift = 32,
.set_next_event = omap_32k_timer_set_next_event,
.set_mode = omap_32k_timer_set_mode,
};
@@ -165,16 +164,9 @@ static __init void omap_init_32k_timer(void)
{
setup_irq(INT_OS_TIMER, &omap_32k_timer_irq);

- clockevent_32k_timer.mult = div_sc(OMAP_32K_TICKS_PER_SEC,
- NSEC_PER_SEC,
- clockevent_32k_timer.shift);
- clockevent_32k_timer.max_delta_ns =
- clockevent_delta2ns(0xfffffffe, &clockevent_32k_timer);
- clockevent_32k_timer.min_delta_ns =
- clockevent_delta2ns(1, &clockevent_32k_timer);
-
clockevent_32k_timer.cpumask = cpumask_of(0);
- clockevents_register_device(&clockevent_32k_timer);
+ clockevents_config_and_register(&clockevent_32k_timer,
+ OMAP_32K_TICKS_PER_SEC, 1, 0xfffffffe);
}

/*
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 691aa67..3e2ffdb 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -131,7 +131,6 @@ static void omap2_gp_timer_set_mode(enum clock_event_mode mode,
static struct clock_event_device clockevent_gpt = {
.name = "gp_timer",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .shift = 32,
.rating = 300,
.set_next_event = omap2_gp_timer_set_next_event,
.set_mode = omap2_gp_timer_set_mode,
@@ -340,17 +339,11 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,

__omap_dm_timer_int_enable(&clkev, OMAP_TIMER_INT_OVERFLOW);

- clockevent_gpt.mult = div_sc(clkev.rate, NSEC_PER_SEC,
- clockevent_gpt.shift);
- clockevent_gpt.max_delta_ns =
- clockevent_delta2ns(0xffffffff, &clockevent_gpt);
- clockevent_gpt.min_delta_ns =
- clockevent_delta2ns(3, &clockevent_gpt);
- /* Timer internal resynch latency. */
-
clockevent_gpt.cpumask = cpu_possible_mask;
clockevent_gpt.irq = omap_dm_timer_get_irq(&clkev);
- clockevents_register_device(&clockevent_gpt);
+ clockevents_config_and_register(&clockevent_gpt, clkev.rate,
+ 3, /* Timer internal resynch latency */
+ 0xffffffff);

pr_info("OMAP clockevent source: GPTIMER%d at %lu Hz\n",
gptimer_id, clkev.rate);
diff --git a/arch/arm/mach-prima2/timer.c b/arch/arm/mach-prima2/timer.c
index d95bf25..4f69e67 100644
--- a/arch/arm/mach-prima2/timer.c
+++ b/arch/arm/mach-prima2/timer.c
@@ -175,15 +175,9 @@ static u32 notrace sirfsoc_read_sched_clock(void)

static void __init sirfsoc_clockevent_init(void)
{
- clockevents_calc_mult_shift(&sirfsoc_clockevent, CLOCK_TICK_RATE, 60);
-
- sirfsoc_clockevent.max_delta_ns =
- clockevent_delta2ns(-2, &sirfsoc_clockevent);
- sirfsoc_clockevent.min_delta_ns =
- clockevent_delta2ns(2, &sirfsoc_clockevent);
-
sirfsoc_clockevent.cpumask = cpumask_of(0);
- clockevents_register_device(&sirfsoc_clockevent);
+ clockevents_config_and_register(&sirfsoc_clockevent, CLOCK_TICK_RATE,
+ 2, -2);
}

/* initialize the kernel jiffy timer source */
diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c
index 4bc47d6..08cc47f 100644
--- a/arch/arm/mach-pxa/time.c
+++ b/arch/arm/mach-pxa/time.c
@@ -113,18 +113,14 @@ static void __init pxa_timer_init(void)

setup_sched_clock(pxa_read_sched_clock, 32, clock_tick_rate);

- clockevents_calc_mult_shift(&ckevt_pxa_osmr0, clock_tick_rate, 4);
- ckevt_pxa_osmr0.max_delta_ns =
- clockevent_delta2ns(0x7fffffff, &ckevt_pxa_osmr0);
- ckevt_pxa_osmr0.min_delta_ns =
- clockevent_delta2ns(MIN_OSCR_DELTA * 2, &ckevt_pxa_osmr0) + 1;
ckevt_pxa_osmr0.cpumask = cpumask_of(0);

setup_irq(IRQ_OST0, &pxa_ost0_irq);

clocksource_mmio_init(OSCR, "oscr0", clock_tick_rate, 200, 32,
clocksource_mmio_readl_up);
- clockevents_register_device(&ckevt_pxa_osmr0);
+ clockevents_config_and_register(&ckevt_pxa_osmr0, clock_tick_rate,
+ MIN_OSCR_DELTA * 2, 0x7fffffff);
}

#ifdef CONFIG_PM
diff --git a/arch/arm/mach-sa1100/time.c b/arch/arm/mach-sa1100/time.c
index 80702c9..6e980da 100644
--- a/arch/arm/mach-sa1100/time.c
+++ b/arch/arm/mach-sa1100/time.c
@@ -91,18 +91,14 @@ static void __init sa1100_timer_init(void)

setup_sched_clock(sa1100_read_sched_clock, 32, 3686400);

- clockevents_calc_mult_shift(&ckevt_sa1100_osmr0, 3686400, 4);
- ckevt_sa1100_osmr0.max_delta_ns =
- clockevent_delta2ns(0x7fffffff, &ckevt_sa1100_osmr0);
- ckevt_sa1100_osmr0.min_delta_ns =
- clockevent_delta2ns(MIN_OSCR_DELTA * 2, &ckevt_sa1100_osmr0) + 1;
ckevt_sa1100_osmr0.cpumask = cpumask_of(0);

setup_irq(IRQ_OST0, &sa1100_timer_irq);

clocksource_mmio_init(OSCR, "oscr", CLOCK_TICK_RATE, 200, 32,
clocksource_mmio_readl_up);
- clockevents_register_device(&ckevt_sa1100_osmr0);
+ clockevents_config_and_register(&ckevt_sa1100_osmr0, 3686400,
+ MIN_OSCR_DELTA * 2, 0x7fffffff);
}

#ifdef CONFIG_PM
diff --git a/arch/arm/mach-tegra/timer.c b/arch/arm/mach-tegra/timer.c
index e4863f3..bc86161 100644
--- a/arch/arm/mach-tegra/timer.c
+++ b/arch/arm/mach-tegra/timer.c
@@ -259,14 +259,10 @@ static void __init tegra_init_timer(void)
BUG();
}

- clockevents_calc_mult_shift(&tegra_clockevent, 1000000, 5);
- tegra_clockevent.max_delta_ns =
- clockevent_delta2ns(0x1fffffff, &tegra_clockevent);
- tegra_clockevent.min_delta_ns =
- clockevent_delta2ns(0x1, &tegra_clockevent);
tegra_clockevent.cpumask = cpu_all_mask;
tegra_clockevent.irq = tegra_timer_irq.irq;
- clockevents_register_device(&tegra_clockevent);
+ clockevents_config_and_register(&tegra_clockevent, 1000000,
+ 0x1, 0x1fffffff);
#ifdef CONFIG_HAVE_ARM_TWD
twd_local_timer_of_register();
#endif
diff --git a/arch/arm/mach-vt8500/timer.c b/arch/arm/mach-vt8500/timer.c
index 3dd21a4..ed66cf0 100644
--- a/arch/arm/mach-vt8500/timer.c
+++ b/arch/arm/mach-vt8500/timer.c
@@ -168,17 +168,12 @@ void __init vt8500_timer_init(void)
pr_err("%s: vt8500_timer_init: clocksource_register failed for %s\n",
__func__, clocksource.name);

- clockevents_calc_mult_shift(&clockevent, VT8500_TIMER_HZ, 4);
-
- /* copy-pasted from mach-msm; no idea */
- clockevent.max_delta_ns =
- clockevent_delta2ns(0xf0000000, &clockevent);
- clockevent.min_delta_ns = clockevent_delta2ns(4, &clockevent);
clockevent.cpumask = cpumask_of(0);

if (setup_irq(timer_irq, &irq))
pr_err("%s: setup_irq failed for %s\n", __func__,
clockevent.name);
- clockevents_register_device(&clockevent);
+ clockevents_config_and_register(&clockevent, VT8500_TIMER_HZ,
+ 4, 0xf0000000);
}

diff --git a/arch/arm/mach-w90x900/time.c b/arch/arm/mach-w90x900/time.c
index fa27c49..b61ab3e 100644
--- a/arch/arm/mach-w90x900/time.c
+++ b/arch/arm/mach-w90x900/time.c
@@ -91,7 +91,6 @@ static int nuc900_clockevent_setnextevent(unsigned long evt,

static struct clock_event_device nuc900_clockevent_device = {
.name = "nuc900-timer0",
- .shift = 32,
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.set_mode = nuc900_clockevent_setmode,
.set_next_event = nuc900_clockevent_setnextevent,
@@ -133,15 +132,10 @@ static void __init nuc900_clockevents_init(void)
__raw_writel(RESETINT, REG_TISR);
setup_irq(IRQ_TIMER0, &nuc900_timer0_irq);

- nuc900_clockevent_device.mult = div_sc(rate, NSEC_PER_SEC,
- nuc900_clockevent_device.shift);
- nuc900_clockevent_device.max_delta_ns = clockevent_delta2ns(0xffffffff,
- &nuc900_clockevent_device);
- nuc900_clockevent_device.min_delta_ns = clockevent_delta2ns(0xf,
- &nuc900_clockevent_device);
nuc900_clockevent_device.cpumask = cpumask_of(0);

- clockevents_register_device(&nuc900_clockevent_device);
+ clockevents_config_and_register(&nuc900_clockevent_device, rate,
+ 0xf, 0xffffffff);
}

static void __init nuc900_clocksource_init(void)
diff --git a/arch/arm/plat-iop/time.c b/arch/arm/plat-iop/time.c
index cbfbbe4..837a2d5 100644
--- a/arch/arm/plat-iop/time.c
+++ b/arch/arm/plat-iop/time.c
@@ -156,14 +156,9 @@ void __init iop_init_time(unsigned long tick_rate)
write_tmr0(timer_ctl & ~IOP_TMR_EN);
write_tisr(1);
setup_irq(IRQ_IOP_TIMER0, &iop_timer_irq);
- clockevents_calc_mult_shift(&iop_clockevent,
- tick_rate, IOP_MIN_RANGE);
- iop_clockevent.max_delta_ns =
- clockevent_delta2ns(0xfffffffe, &iop_clockevent);
- iop_clockevent.min_delta_ns =
- clockevent_delta2ns(0xf, &iop_clockevent);
iop_clockevent.cpumask = cpumask_of(0);
- clockevents_register_device(&iop_clockevent);
+ clockevents_config_and_register(&iop_clockevent, tick_rate,
+ 0xf, 0xfffffffe);

/*
* Set up free-running clocksource timer 1.
diff --git a/arch/arm/plat-orion/time.c b/arch/arm/plat-orion/time.c
index 0f4fa86..5d5ac0f 100644
--- a/arch/arm/plat-orion/time.c
+++ b/arch/arm/plat-orion/time.c
@@ -156,7 +156,6 @@ orion_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev)
static struct clock_event_device orion_clkevt = {
.name = "orion_tick",
.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
- .shift = 32,
.rating = 300,
.set_next_event = orion_clkevt_next_event,
.set_mode = orion_clkevt_mode,
@@ -221,9 +220,6 @@ orion_time_init(void __iomem *_bridge_base, u32 _bridge_timer1_clr_mask,
* Setup clockevent timer (interrupt-driven).
*/
setup_irq(irq, &orion_timer_irq);
- orion_clkevt.mult = div_sc(tclk, NSEC_PER_SEC, orion_clkevt.shift);
- orion_clkevt.max_delta_ns = clockevent_delta2ns(0xfffffffe, &orion_clkevt);
- orion_clkevt.min_delta_ns = clockevent_delta2ns(1, &orion_clkevt);
orion_clkevt.cpumask = cpumask_of(0);
- clockevents_register_device(&orion_clkevt);
+ clockevents_config_and_register(&orion_clkevt, tclk, 1, 0xfffffffe);
}
diff --git a/arch/arm/plat-samsung/s5p-time.c b/arch/arm/plat-samsung/s5p-time.c
index 028b6e8..798268b 100644
--- a/arch/arm/plat-samsung/s5p-time.c
+++ b/arch/arm/plat-samsung/s5p-time.c
@@ -274,15 +274,8 @@ static void __init s5p_clockevent_init(void)
clock_rate = clk_get_rate(tin_event);
clock_count_per_tick = clock_rate / HZ;

- clockevents_calc_mult_shift(&time_event_device,
- clock_rate, S5PTIMER_MIN_RANGE);
- time_event_device.max_delta_ns =
- clockevent_delta2ns(-1, &time_event_device);
- time_event_device.min_delta_ns =
- clockevent_delta2ns(1, &time_event_device);
-
time_event_device.cpumask = cpumask_of(0);
- clockevents_register_device(&time_event_device);
+ clockevents_config_and_register(&time_event_device, clock_rate, 1, -1);

irq_number = timer_source.event_id + IRQ_TIMER0;
setup_irq(irq_number, &s5p_clock_event_irq);
diff --git a/arch/arm/plat-spear/time.c b/arch/arm/plat-spear/time.c
index 03321af..bd5c53c 100644
--- a/arch/arm/plat-spear/time.c
+++ b/arch/arm/plat-spear/time.c
@@ -186,15 +186,9 @@ static void __init spear_clockevent_init(int irq)
tick_rate = clk_get_rate(gpt_clk);
tick_rate >>= CTRL_PRESCALER16;

- clockevents_calc_mult_shift(&clkevt, tick_rate, SPEAR_MIN_RANGE);
-
- clkevt.max_delta_ns = clockevent_delta2ns(0xfff0,
- &clkevt);
- clkevt.min_delta_ns = clockevent_delta2ns(3, &clkevt);
-
clkevt.cpumask = cpumask_of(0);

- clockevents_register_device(&clkevt);
+ clockevents_config_and_register(&clkevt, tick_rate, 3, 0xfff0);

setup_irq(irq, &spear_timer_irq);
}
--
1.7.9.5



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