diff options
Diffstat (limited to 'arch/arm/mach-pxa/time.c')
| -rw-r--r-- | arch/arm/mach-pxa/time.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c index 72b15e9a373a..7dad3f1465e0 100644 --- a/arch/arm/mach-pxa/time.c +++ b/arch/arm/mach-pxa/time.c | |||
| @@ -91,9 +91,10 @@ pxa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |||
| 91 | 91 | ||
| 92 | /* Loop until we get ahead of the free running timer. | 92 | /* Loop until we get ahead of the free running timer. |
| 93 | * This ensures an exact clock tick count and time accuracy. | 93 | * This ensures an exact clock tick count and time accuracy. |
| 94 | * IRQs are disabled inside the loop to ensure coherence between | 94 | * Since IRQs are disabled at this point, coherence between |
| 95 | * lost_ticks (updated in do_timer()) and the match reg value, so we | 95 | * lost_ticks(updated in do_timer()) and the match reg value is |
| 96 | * can use do_gettimeofday() from interrupt handlers. | 96 | * ensured, hence we can use do_gettimeofday() from interrupt |
| 97 | * handlers. | ||
| 97 | * | 98 | * |
| 98 | * HACK ALERT: it seems that the PXA timer regs aren't updated right | 99 | * HACK ALERT: it seems that the PXA timer regs aren't updated right |
| 99 | * away in all cases when a write occurs. We therefore compare with | 100 | * away in all cases when a write occurs. We therefore compare with |