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[nrf fromlist] drivers: timer: grtc: Switch GRTC clock source to LFXO #2010

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merged 1 commit into from
Sep 18, 2024
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[nrf fromlist] drivers: timer: grtc: Switch GRTC clock source to LFXO #2010

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10 changes: 8 additions & 2 deletions drivers/timer/nrf_grtc_timer.c
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Original file line number Diff line number Diff line change
Expand Up @@ -423,7 +423,7 @@ int z_nrf_grtc_wakeup_prepare(uint64_t wake_time_us)
nrfy_grtc_timeout_get(NRF_GRTC) * CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC / 32768 +
MAX_CC_LATCH_WAIT_TIME_US;
k_busy_wait(wait_time);
#if NRF_GRTC_HAS_CLKSEL
#if DT_NODE_HAS_STATUS(DT_NODELABEL(lfxo), okay) && NRF_GRTC_HAS_CLKSEL
nrfx_grtc_clock_source_set(NRF_GRTC_CLKSEL_LFXO);
#endif
k_spin_unlock(&lock, key);
Expand Down Expand Up @@ -464,7 +464,7 @@ static int sys_clock_driver_init(void)

#if defined(CONFIG_NRF_GRTC_TIMER_CLOCK_MANAGEMENT) && \
(defined(NRF_GRTC_HAS_CLKSEL) && (NRF_GRTC_HAS_CLKSEL == 1))
/* Use System LFCLK as the low-frequency clock source. */
/* Use System LFCLK as the low-frequency clock source during initialization. */
nrfx_grtc_clock_source_set(NRF_GRTC_CLKSEL_LFCLK);
#endif

Expand Down Expand Up @@ -504,6 +504,12 @@ static int sys_clock_driver_init(void)
z_nrf_clock_control_lf_on(mode);
#endif

#if defined(CONFIG_NRF_GRTC_TIMER_CLOCK_MANAGEMENT) && \
DT_NODE_HAS_STATUS(DT_NODELABEL(lfxo), okay) && NRF_GRTC_HAS_CLKSEL
/* Switch to LFXO as the low-frequency clock source. */
nrfx_grtc_clock_source_set(NRF_GRTC_CLKSEL_LFXO);
#endif

return 0;
}

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