Commit 41ca34a7 authored by Shlomi Vaknin's avatar Shlomi Vaknin Committed by Anas Nashif
Browse files

drivers: stm32: rtc: Add option to keep rtc value 



Add option to keep rtc value between resets.

Signed-off-by: default avatarShlomi Vaknin <shlomi.39sd@gmail.com>
parent d4316cc4

drivers/counter/Kconfig.stm32_rtc

+7 −0
Original line number Diff line number Diff line
@@ -81,4 +81,11 @@ config COUNTER_RTC_STM32_BACKUP_DOMAIN_RESET 
	help

	  Force a backup domain reset on startup



config COUNTER_RTC_STM32_SAVE_VALUE_BETWEEN_RESETS

	bool "Save rtc time value between resets"

	default y

	depends on !COUNTER_RTC_STM32_BACKUP_DOMAIN_RESET

	help

	  Do not reset the rtc time and date after each reset.



endif # COUNTER_RTC_STM32

drivers/counter/counter_ll_stm32_rtc.c

+2 −0
Original line number Diff line number Diff line
@@ -359,9 +359,11 @@ static int rtc_stm32_init(const struct device *dev) 


	z_stm32_hsem_unlock(CFG_HW_RCC_SEMID);



#if !defined(CONFIG_COUNTER_RTC_STM32_SAVE_VALUE_BETWEEN_RESETS)

	if (LL_RTC_DeInit(RTC) != SUCCESS) {

		return -EIO;

	}

#endif



	if (LL_RTC_Init(RTC, ((LL_RTC_InitTypeDef *)

			      &cfg->ll_rtc_config)) != SUCCESS) {

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