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[nrf fromlist] drivers: timer: nrf_grtc: Fix for optimization #3059

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Merged
merged 2 commits into from
Jul 21, 2025
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[nrf fromlist] drivers: timer: nrf_grtc: Fix for optimization #3059

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f9780d2
Revert "[nrf fromlist] drivers: timer: nrf_grtc_timer: Optimize to re…
nordic-krch Jul 18, 2025
4d942b0
[nrf fromlist] drivers: timer: nrf_grtc_timer: Optimize to reduce reg…
nordic-krch Mar 31, 2025
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13 changes: 9 additions & 4 deletions drivers/timer/nrf_grtc_timer.c
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Original file line number Diff line number Diff line change
Expand Up @@ -549,10 +549,6 @@ void sys_clock_set_timeout(int32_t ticks, bool idle)
{
ARG_UNUSED(idle);

if (ticks == 0) {
return;
}

if (!IS_ENABLED(CONFIG_TICKLESS_KERNEL)) {
return;
}
Expand All @@ -562,6 +558,15 @@ void sys_clock_set_timeout(int32_t ticks, bool idle)
if ((cc_value == expired_cc) && (ticks < MAX_REL_TICKS)) {
uint32_t cyc = ticks * CYC_PER_TICK;

if (cyc == 0) {
/* GRTC will expire anyway since HW ensures that past value triggers an
* event but we need to ensure to always progress the cc_value as this
* if condition expects that cc_value will change after each call to
* set_timeout function.
*/
cyc = 1;
}

/* If it's the first timeout setting after previous expiration and timeout
* is short so fast method can be used which utilizes relative CC configuration.
*/
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