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drivers: rtc: stm32: fix clk enable call

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On STM32WBAX series, there is no bit in BCDR register to enable RTC.
Enabling RTC is done directly via the RCC APB register bit.

Signed-off-by: Abderrahmane Jarmouni <abderrahmane.jarmouni-ext@st.com>
This commit is contained in:
Abderrahmane Jarmouni 2024-05-03 18:09:23 +02:00 • committed by Carles Cufí
commit b1f878f7a5
1 changed files with 6 additions and 0 deletions
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6
drivers/rtc/rtc_ll_stm32.c
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@ -356,11 +356,17 @@ static int rtc_stm32_init(const struct device *dev)
return -EIO;
}
/*
* On STM32WBAX series, there is no bit in BCDR register to enable RTC.
* Enabling RTC is done directly via the RCC APB register bit.
*/
#ifndef CONFIG_SOC_SERIES_STM32WBAX
z_stm32_hsem_lock(CFG_HW_RCC_SEMID, HSEM_LOCK_DEFAULT_RETRY);
LL_RCC_EnableRTC();
z_stm32_hsem_unlock(CFG_HW_RCC_SEMID);
#endif /* CONFIG_SOC_SERIES_STM32WBAX */
err = rtc_stm32_configure(dev);