Cf Errata sheet, 2.2.4: With HSE active, switching the system clock source
from any other source to HSI, spuriously deactivates HSE.
Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>
In case of chain loaded application with PLL set as the sysclk source,
directly exit the init function.
This also applies to exit from stop mode and was tested successfully.
Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>
Make clock_control_on for STM32 behave the same as the HAL,
delaying after enabling peripheral clocks. Otherwise it may return
before the clock is actually enabled, causing subsequent writes to
peripheral registers to be silently ignored.
Signed-off-by: Kevin ORourke <kevin.orourke@ferroamp.se>
LSI clock configuration for STM32WBA is located in backup domain.
The backup domain needs to be enabled before the LSI can be enabled.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
