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-rw-r--r--dts/Bindings/interrupt-controller/st,stm32-exti.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/dts/Bindings/interrupt-controller/st,stm32-exti.txt b/dts/Bindings/interrupt-controller/st,stm32-exti.txt
index 6a36bf66d9..cd01b2292e 100644
--- a/dts/Bindings/interrupt-controller/st,stm32-exti.txt
+++ b/dts/Bindings/interrupt-controller/st,stm32-exti.txt
@@ -14,6 +14,10 @@ Required properties:
(only needed for exti controller with multiple exti under
same parent interrupt: st,stm32-exti and st,stm32h7-exti)
+Optional properties:
+
+- hwlocks: reference to a phandle of a hardware spinlock provider node.
+
Example:
exti: interrupt-controller@40013c00 {