diff options
Diffstat (limited to 'arch/arm/lib')
| -rw-r--r-- | arch/arm/lib/delay.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c index 312d43eb686a..8044591dca72 100644 --- a/arch/arm/lib/delay.c +++ b/arch/arm/lib/delay.c @@ -83,6 +83,12 @@ void __init register_current_timer_delay(const struct delay_timer *timer) NSEC_PER_SEC, 3600); res = cyc_to_ns(1ULL, new_mult, new_shift); + if (res > 1000) { + pr_err("Ignoring delay timer %ps, which has insufficient resolution of %lluns\n", + timer, res); + return; + } + if (!delay_calibrated && (!delay_res || (res < delay_res))) { pr_info("Switching to timer-based delay loop, resolution %lluns\n", res); delay_timer = timer; |