diff options
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/nomadik-mtu.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c index 025afc6dd324..435e54d55bbd 100644 --- a/drivers/clocksource/nomadik-mtu.c +++ b/drivers/clocksource/nomadik-mtu.c @@ -15,6 +15,7 @@ #include <linux/clocksource.h> #include <linux/clk.h> #include <linux/jiffies.h> +#include <linux/delay.h> #include <linux/err.h> #include <linux/platform_data/clocksource-nomadik-mtu.h> #include <asm/mach/time.h> @@ -64,6 +65,7 @@ static void __iomem *mtu_base; static bool clkevt_periodic; static u32 clk_prescale; static u32 nmdk_cycle; /* write-once */ +static struct delay_timer mtu_delay_timer; #ifdef CONFIG_NOMADIK_MTU_SCHED_CLOCK /* @@ -80,6 +82,11 @@ static u32 notrace nomadik_read_sched_clock(void) } #endif +static unsigned long nmdk_timer_read_current_timer(void) +{ + return ~readl_relaxed(mtu_base + MTU_VAL(0)); +} + /* Clockevent device: use one-shot mode */ static int nmdk_clkevt_next(unsigned long evt, struct clock_event_device *ev) { @@ -234,4 +241,8 @@ void __init nmdk_timer_init(void __iomem *base, int irq) setup_irq(irq, &nmdk_timer_irq); nmdk_clkevt.cpumask = cpumask_of(0); clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU); + + mtu_delay_timer.read_current_timer = &nmdk_timer_read_current_timer; + mtu_delay_timer.freq = rate; + register_current_timer_delay(&mtu_delay_timer); } |