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drivers: timer: nrf_rtc_timer: do not start LFCLK unless CLOCK_CONTROL

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Do not start the LF clock unless CONFIG_CLOCK_CONTROL_NRF is enabled.
This is similar to how it's done in Nordic's GRTC driver.

Authored-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
Signed-off-by: Emanuele Di Santo <emdi@nordicsemi.no>
This commit is contained in:
Emanuele Di Santo 2025-03-07 12:14:01 +01:00 committed by Benjamin Cabé
parent 6debfe7934
commit cdc2f2a52c
1 changed files with 9 additions and 7 deletions
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16
drivers/timer/nrf_rtc_timer.c
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@ -726,13 +726,6 @@ void sys_clock_disable(void)
static int sys_clock_driver_init(void)
{
static const enum nrf_lfclk_start_mode mode =
IS_ENABLED(CONFIG_SYSTEM_CLOCK_NO_WAIT) ?
CLOCK_CONTROL_NRF_LF_START_NOWAIT :
(IS_ENABLED(CONFIG_SYSTEM_CLOCK_WAIT_FOR_AVAILABILITY) ?
CLOCK_CONTROL_NRF_LF_START_AVAILABLE :
CLOCK_CONTROL_NRF_LF_START_STABLE);
int_event_disable_rtc();
/* TODO: replace with counter driver to access RTC */
@ -763,7 +756,16 @@ static int sys_clock_driver_init(void)
compare_set(0, initial_timeout, sys_clock_timeout_handler, NULL, false);
#if defined(CONFIG_CLOCK_CONTROL_NRF)
static const enum nrf_lfclk_start_mode mode =
IS_ENABLED(CONFIG_SYSTEM_CLOCK_NO_WAIT) ?
CLOCK_CONTROL_NRF_LF_START_NOWAIT :
(IS_ENABLED(CONFIG_SYSTEM_CLOCK_WAIT_FOR_AVAILABILITY) ?
CLOCK_CONTROL_NRF_LF_START_AVAILABLE :
CLOCK_CONTROL_NRF_LF_START_STABLE);
z_nrf_clock_control_lf_on(mode);
#endif
return 0;
}