diff options
Diffstat (limited to 'arch/arm/plat-omap/common.c')
-rw-r--r-- | arch/arm/plat-omap/common.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index 4f0f9c4e938e..7f1cae16cfad 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c | |||
@@ -193,6 +193,23 @@ static struct clocksource clocksource_32k = { | |||
193 | .flags = CLOCK_SOURCE_IS_CONTINUOUS, | 193 | .flags = CLOCK_SOURCE_IS_CONTINUOUS, |
194 | }; | 194 | }; |
195 | 195 | ||
196 | /* | ||
197 | * Rounds down to nearest nsec. | ||
198 | */ | ||
199 | unsigned long long omap_32k_ticks_to_nsecs(unsigned long ticks_32k) | ||
200 | { | ||
201 | return cyc2ns(&clocksource_32k, ticks_32k); | ||
202 | } | ||
203 | |||
204 | /* | ||
205 | * Returns current time from boot in nsecs. It's OK for this to wrap | ||
206 | * around for now, as it's just a relative time stamp. | ||
207 | */ | ||
208 | unsigned long long sched_clock(void) | ||
209 | { | ||
210 | return omap_32k_ticks_to_nsecs(omap_32k_read()); | ||
211 | } | ||
212 | |||
196 | static int __init omap_init_clocksource_32k(void) | 213 | static int __init omap_init_clocksource_32k(void) |
197 | { | 214 | { |
198 | static char err[] __initdata = KERN_ERR | 215 | static char err[] __initdata = KERN_ERR |