dt-bindings: interrupt-controller: stm32: Document hwlock properties

benjamingaignard · Marc Zyngier · commit 897898a69451 · 2018-12-18T15:38:11.000Z
Add hwlocks as optional property

Reviewed-by: Rob Herring &lt;robh@kernel.org&gt;
Signed-off-by: Benjamin Gaignard &lt;benjamin.gaignard@st.com&gt;
Signed-off-by: Marc Zyngier &lt;marc.zyngier@arm.com&gt;
diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt b/Documentation/devicetree/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 {
