dt-bindings: leds: cznic,turris-omnia-leds: Allow interrupts property

Extend the cznic,turris-omnia-leds binding with interrupts property,
specifying the global LED brightness changed by button press interrupt.

Signed-off-by: Marek Behún <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

Author: elkablo

Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml

@@ -23,6 +23,12 @@ properties:
     description: I2C slave address of the microcontroller.
     maxItems: 1
 
+  interrupts:
+    description:
+      Specifier for the global LED brightness changed by front button press
+      interrupt.
+    maxItems: 1
+
   "#address-cells":
     const: 1
 
@@ -56,6 +62,7 @@ additionalProperties: false
 examples:
   - |
 
+    #include <dt-bindings/interrupt-controller/irq.h>
     #include <dt-bindings/leds/common.h>
 
     i2c {
@@ -65,6 +72,7 @@ examples:
         led-controller@2b {
             compatible = "cznic,turris-omnia-leds";
             reg = <0x2b>;
+            interrupts-extended = <&mcu 11 IRQ_TYPE_NONE>;
             #address-cells = <1>;
             #size-cells = <0>;