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Merge branch 'clockevents/fixes' of git://git.linaro.org/people/daniel.lezcano/linux into timers/urgent 

Pull clockevents/clocksource fixes from Daniel Lezcano:

  * Axel Lin added a missing dependency on CLKSRC_MMIO in the Kconfig
    for the time-efm32

  * Dinh Nguyen fixed read_sched_clock to return the right value and
    added the clksrc-of missing definition for the dw_apb_timer

  * Ezequiel Garcia registered the sched clock after the counter,
    thus preventing time jump in the traces for the armada-370-xp

  * Marc Zyngier stopped the timer before enabling the irq in order
    to prevent it to be fired before the clockevent is registered for
    the sunxi

  * Thierry Reding removed a of_node_put in clksrc-of because the
    reference is not held

Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2013-12-10 20:47:22 +01:00
parent 17b2112f33 9ab4727c1d
commit 5d5119a476
5 changed files with 13 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/clocksource/Kconfig
View File

@ -75,6 +75,7 @@ config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
config CLKSRC_EFM32
bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
select CLKSRC_MMIO
default ARCH_EFM32
help
Support to use the timers of EFM32 SoCs as clock source and clock

1
drivers/clocksource/clksrc-of.c
View File

@ -35,6 +35,5 @@ void __init clocksource_of_init(void)
init_func = match->data;
init_func(np);
of_node_put(np);
}
}

7
drivers/clocksource/dw_apb_timer_of.c
View File

@ -108,12 +108,11 @@ static void __init add_clocksource(struct device_node *source_timer)
static u64 read_sched_clock(void)
{
return __raw_readl(sched_io_base);
return ~__raw_readl(sched_io_base);
}
static const struct of_device_id sptimer_ids[] __initconst = {
{ .compatible = "picochip,pc3x2-rtc" },
{ .compatible = "snps,dw-apb-timer-sp" },
{ /* Sentinel */ },
};
@ -151,4 +150,6 @@ static void __init dw_apb_timer_init(struct device_node *timer)
num_called++;
}
CLOCKSOURCE_OF_DECLARE(pc3x2_timer, "picochip,pc3x2-timer", dw_apb_timer_init);
CLOCKSOURCE_OF_DECLARE(apb_timer, "snps,dw-apb-timer-osc", dw_apb_timer_init);
CLOCKSOURCE_OF_DECLARE(apb_timer_osc, "snps,dw-apb-timer-osc", dw_apb_timer_init);
CLOCKSOURCE_OF_DECLARE(apb_timer_sp, "snps,dw-apb-timer-sp", dw_apb_timer_init);
CLOCKSOURCE_OF_DECLARE(apb_timer, "snps,dw-apb-timer", dw_apb_timer_init);

3
drivers/clocksource/sun4i_timer.c
View File

@ -179,6 +179,9 @@ static void __init sun4i_timer_init(struct device_node *node)
writel(TIMER_CTL_CLK_SRC(TIMER_CTL_CLK_SRC_OSC24M),
timer_base + TIMER_CTL_REG(0));
/* Make sure timer is stopped before playing with interrupts */
sun4i_clkevt_time_stop(0);
ret = setup_irq(irq, &sun4i_timer_irq);
if (ret)
pr_warn("failed to setup irq %d\n", irq);

10
drivers/clocksource/time-armada-370-xp.c
View File

@ -255,11 +255,6 @@ static void __init armada_370_xp_timer_common_init(struct device_node *np)
ticks_per_jiffy = (timer_clk + HZ / 2) / HZ;
/*
* Set scale and timer for sched_clock.
*/
sched_clock_register(armada_370_xp_read_sched_clock, 32, timer_clk);
/*
* Setup free-running clocksource timer (interrupts
* disabled).
@ -270,6 +265,11 @@ static void __init armada_370_xp_timer_common_init(struct device_node *np)
timer_ctrl_clrset(0, TIMER0_EN | TIMER0_RELOAD_EN |
TIMER0_DIV(TIMER_DIVIDER_SHIFT));
/*
* Set scale and timer for sched_clock.
*/
sched_clock_register(armada_370_xp_read_sched_clock, 32, timer_clk);
clocksource_mmio_init(timer_base + TIMER0_VAL_OFF,
"armada_370_xp_clocksource",
timer_clk, 300, 32, clocksource_mmio_readl_down);