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drivers: clock: esp32c3: fix clock basis

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Clock ISR was running 2x the frequency.
Also fixes clock_get_cycle which was returning
wrong values.

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>
This commit is contained in:
Sylvio Alves 2021-11-19 16:00:06 -03:00 • committed by Anas Nashif
commit b9ae272ade
1 changed files with 3 additions and 10 deletions
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13
drivers/timer/esp32c3_sys_timer.c
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@ -52,7 +52,7 @@ static void sys_timer_isr(const void *arg)
uint32_t dticks = (uint32_t)((now - last_count) / CYC_PER_TICK); uint32_t dticks = (uint32_t)((now - last_count) / CYC_PER_TICK);
last_count += dticks * CYC_PER_TICK; last_count = now;
if (!TICKLESS) { if (!TICKLESS) {
uint64_t next = last_count + CYC_PER_TICK; uint64_t next = last_count + CYC_PER_TICK;
@ -132,17 +132,10 @@ uint32_t sys_clock_elapsed(void)
uint32_t sys_clock_cycle_get_32(void) uint32_t sys_clock_cycle_get_32(void)
{ {
return systimer_ll_get_counter_value_low(SYSTIMER_COUNTER_1); return (uint32_t)systimer_alarm();
} }
uint64_t sys_clock_cycle_get_64(void) uint64_t sys_clock_cycle_get_64(void)
{ {
k_spinlock_key_t key = k_spin_lock(&lock); return systimer_alarm();
uint64_t ret = systimer_ll_get_counter_value_low(SYSTIMER_COUNTER_1);
ret |= (uint64_t)systimer_ll_get_counter_value_high(SYSTIMER_COUNTER_1) << 32;
k_spin_unlock(&lock, key);
return ret;
} }