void ndelay (unsigned long nsec) /* delay in nano-seconds */
{
u64 delta = usec_to_tick(nsec); /* time to wait */
delta /= 1000ull; /* remember: nsec not usec ! */
tick_delay (delta); /* wait ... */
}
void __weak __udelay(unsigned long usec)
{
uint64_t tmp;
tmp = get_ticks() + usec_to_tick(usec); /* get current timestamp */
while (get_ticks() < tmp+1) /* loop till event */
/*NOP*/;
}
void __udelay(unsigned long usec)
{
unsigned long long start;
ulong tmo;
start = get_ticks(); /* get current timestamp */
tmo = usec_to_tick(usec); /* convert usecs to ticks */
while ((get_ticks() - start) < tmo)
; /* loop till time has passed */
}
void udelay(unsigned long usec)
{
unsigned long long tmp;
ulong tmo;
tmo = usec_to_tick(usec);
tmp = get_ticks() + tmo; /* get current timestamp */
while (get_ticks() < tmp) /* loop till event */
/*NOP*/;
}
void rockchip_udelay(unsigned int usec)
{
uint64_t tmp;
/* get timestamp */
tmp = rockchip_get_ticks() + usec_to_tick(usec);
/* loop till event */
while (rockchip_get_ticks() < tmp+1)
;
}
/* delay x useconds */
void __udelay(unsigned long usec)
{
long long tmo;
long long now, last;
tmo = usec_to_tick(usec);
/* get current timestamp */
last = get_rk_current_tick();
while (tmo > 0) /* loop till event */
{
now = get_rk_current_tick();
if (last >= now) {
tmo -= last - now;
} else {
tmo -= 0xFFFFFFFF + last - now;
}
last = now;
}
}
void udelay (unsigned long usec) /* delay in micro-seconds */
{
u64 delta = usec_to_tick(usec); /* time to wait */
tick_delay (delta); /* wait ... */
}