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tests: drivers: nrf_lf_clock_control: Fix test initialization

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This test needs an initialization step to be done soon after the system
clock is started. ZTEST setup function is too late for that, so use an
initialization function executed at the POST_KERNEL stage instead.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
This commit is contained in:
Andrzej Głąbek 2022-11-17 13:45:47 +01:00 • committed by Carles Cufí
commit 31767a0bce
1 changed files with 23 additions and 9 deletions
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32
tests/drivers/clock_control/nrf_lf_clock_start/src/main.c
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@ -89,15 +89,6 @@ ZTEST(nrf_lf_clock_start, test_wait_in_thread)
void *test_init(void)
{
/* Do clock state read as early as possible. When RC is already running
* and XTAL has been started then LFSRCSTAT register content might be
* not valid, in that case read system clock to check if it has
* progressed.
*/
on = nrf_clock_is_running(NRF_CLOCK, NRF_CLOCK_DOMAIN_LFCLK, &type);
k_busy_wait(100);
rtc_cnt = k_cycle_get_32();
TC_PRINT("CLOCK_CONTROL_NRF_K32SRC=%s\n",
IS_ENABLED(CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC) ? "RC"
: IS_ENABLED(CONFIG_CLOCK_CONTROL_NRF_K32SRC_SYNTH) ? "SYNTH"
@ -114,3 +105,26 @@ void *test_init(void)
return NULL;
}
ZTEST_SUITE(nrf_lf_clock_start, NULL, test_init, NULL, NULL, NULL);
/* This test needs to read the LF clock state soon after the system clock is
* started (to check if the starting routine waits for the LF clock or not),
* so do it at the beginning of the POST_KERNEL stage (the system clock is
* started in PRE_KERNEL_2). Reading of the clock state in the ZTEST setup
* function turns out to be too late.
*/
static int get_lfclk_state(const struct device *dev)
{
ARG_UNUSED(dev);
/* Do clock state read as early as possible. When RC is already running
* and XTAL has been started then LFSRCSTAT register content might be
* not valid, in that case read system clock to check if it has
* progressed.
*/
on = nrf_clock_is_running(NRF_CLOCK, NRF_CLOCK_DOMAIN_LFCLK, &type);
k_busy_wait(100);
rtc_cnt = k_cycle_get_32();
return 0;
}
SYS_INIT(get_lfclk_state, POST_KERNEL, 0);