doc: releases: migration guide: stm32 adc async clock

Update the migration guide to indicate that the STM32 ADC that selects an asynchronous clock also need to set a domain clock. Signed-off-by: Guillaume Gautier <[email protected]>
zephyrproject-rtos · Oct 7, 2024 · 2a67664 · 2a67664
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commit 2a67664
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diff --git a/doc/releases/migration-guide-4.0.rst b/doc/releases/migration-guide-4.0.rst
@@ -118,6 +118,12 @@ Device Drivers and Devicetree
   their driver API, users of these devices should ensure they pass appropriate values to
   :c:func:`gpio_pin_set`. (:github:`65797`)
 
+Analog Digital Converter (ADC)
+==============================
+
+* For all STM32 ADC that selects an asynchronous clock through ``st,adc-clock-source`` property,
+  it is now mandatory to also explicitly define a domain clock source using the ``clock`` property.
+
 Clock control
 =============