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drivers: rtc: stm32: add build assertion for source clock

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Assert the source clock is defined in the device tree to ensure the
reference is valid.

Signed-off-by: Brett Witherspoon <brett@witherspoon.engineering>
This commit is contained in:
Brett Witherspoon 2023-09-16 15:44:43 -04:00 • committed by Fabio Baltieri
commit 462a7262be
1 changed files with 2 additions and 0 deletions
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drivers/rtc/rtc_ll_stm32.c
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@ -167,6 +167,8 @@ static int rtc_stm32_init(const struct device *dev)
static const struct stm32_pclken rtc_clk[] = STM32_DT_INST_CLOCKS(0);
BUILD_ASSERT(DT_INST_CLOCKS_HAS_IDX(0, 1), "RTC source clock not defined in the device tree");
static const struct rtc_stm32_config rtc_config = {
#if DT_INST_CLOCKS_CELL_BY_IDX(0, 1, bus) == STM32_SRC_LSI
/* prescaler values for LSI @ 32 KHz */