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clocksource: exynos_mct: register sched_clock callback

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Use the clocksource mct-frc for sched_clock

Signed-off-by: Vincent Guittot <[email protected]>
Reviewed-by: Tomasz Figa <[email protected]>
Acked-by: Daniel Lezcano <[email protected]>
Signed-off-by: Kukjin Kim <[email protected]>
This commit is contained in:
Vincent Guittot authored and Kukjin Kim committed 2014-05-02 22:27:01 +09:00
1 parent c9eaa447e7
commit 93bfb76975
1 file changed
+8
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drivers/clocksource/exynos_mct.c
+8
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@@ -24,6 +24,7 @@
#include <linux/of_irq.h>
#include <linux/of_address.h>
#include <linux/clocksource.h>
#include <linux/sched_clock.h>
#define EXYNOS4_MCTREG(x) (x)
#define EXYNOS4_MCT_G_CNT_L EXYNOS4_MCTREG(0x100)
@@ -192,12 +193,19 @@ struct clocksource mct_frc = {
.resume = exynos4_frc_resume,
};
static u64 notrace exynos4_read_sched_clock(void)
{
return exynos4_frc_read(&mct_frc);
}
static void __init exynos4_clocksource_init(void)
{
exynos4_mct_frc_start(0, 0);
if (clocksource_register_hz(&mct_frc, clk_rate))
panic("%s: can't register clocksource\n", mct_frc.name);
sched_clock_register(exynos4_read_sched_clock, 64, clk_rate);
}
static void exynos4_mct_comp0_stop(void)