diff options
Diffstat (limited to 'drivers/char/hpet.c')
| -rw-r--r-- | drivers/char/hpet.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index fd51554ab081..4c16778e3f84 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -62,6 +62,8 @@ static u32 hpet_nhpet, hpet_max_freq = HPET_USER_FREQ; +/* This clocksource driver currently only works on ia64 */ +#ifdef CONFIG_IA64 static void __iomem *hpet_mctr; static cycle_t read_hpet(void) @@ -79,6 +81,7 @@ static struct clocksource clocksource_hpet = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; static struct clocksource *hpet_clocksource; +#endif /* A lock for concurrent access by app and isr hpet activity. */ static DEFINE_SPINLOCK(hpet_lock); |