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ARM: use clockevents_config_and_register() where possible

Browse Source 
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>
This commit is contained in:
Shawn Guo 2013-01-12 11:50:05 +00:00 committed by Olof Johansson
parent c35ef95c27
commit 838a2ae80a
25 changed files with 53 additions and 209 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/arm/mach-at91/at91rm9200_time.c
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@ -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);

13
arch/arm/mach-cns3xxx/core.c
View File

@ -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);
}
/*

18
arch/arm/mach-exynos/mct.c
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@ -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);

6
arch/arm/mach-footbridge/dc21285-timer.c
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@ -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 = {

15
arch/arm/mach-imx/epit.c
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@ -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;
}

15
arch/arm/mach-imx/time.c
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@ -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;
}

11
arch/arm/mach-ixp4xx/common.c
View File

@ -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)

9
arch/arm/mach-lpc32xx/timer.c
View File

@ -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,

7
arch/arm/mach-mmp/time.c
View File

@ -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

6
arch/arm/mach-msm/timer.c
View File

@ -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;
}

24
arch/arm/mach-mxs/timer.c
View File

@ -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;
}

10
arch/arm/mach-netx/time.c
View File

@ -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 = {

11
arch/arm/mach-omap1/time.c
View File

@ -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);
}

12
arch/arm/mach-omap1/timer32k.c
View File

@ -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);
}
/*

13
arch/arm/mach-omap2/timer.c
View File

@ -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);

10
arch/arm/mach-prima2/timer.c
View File

@ -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 */

8
arch/arm/mach-pxa/time.c
View File

@ -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

8
arch/arm/mach-sa1100/time.c
View File

@ -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

8
arch/arm/mach-tegra/timer.c
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@ -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

9
arch/arm/mach-vt8500/timer.c
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@ -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);
}

10
arch/arm/mach-w90x900/time.c
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@ -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)

9
arch/arm/plat-iop/time.c
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@ -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.

6
arch/arm/plat-orion/time.c
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@ -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);
}

9
arch/arm/plat-samsung/s5p-time.c
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@ -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);

8
arch/arm/plat-spear/time.c
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@ -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);
}