diff options
Diffstat (limited to 'udelay_dos.c')
| -rw-r--r-- | udelay_dos.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/udelay_dos.c b/udelay_dos.c index 4a29f73d4..c3914eacc 100644 --- a/udelay_dos.c +++ b/udelay_dos.c @@ -28,7 +28,7 @@ /* loops per microsecond */ static unsigned long micro = 1; -__attribute__ ((noinline)) void myusec_delay(unsigned int usecs) +__attribute__ ((noinline)) static void myusec_delay(unsigned int usecs) { unsigned long i; for (i = 0; i < usecs * micro; i++) { @@ -153,19 +153,20 @@ void internal_sleep(unsigned int usecs) usleep(usecs % 1000000); } +static const unsigned min_sleep = CONFIG_DELAY_MINIMUM_SLEEP_US; + /* Precise delay. */ void default_delay(unsigned int usecs) { static bool calibrated = false; - /* If the delay is >0.1 s, use internal_sleep because timing does not need to be so precise. */ - if (usecs > 100000) { - internal_sleep(usecs); - } else { + if (usecs < min_sleep) { if (!calibrated) { myusec_calibrate_delay(); calibrated = true; } myusec_delay(usecs); + } else { + internal_sleep(usecs); } } |