dt-bindings: leds: Mention GPIO triggers

[linux-2.6-microblaze.git] / Documentation / devicetree / bindings / leds / common.yaml

diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml
index 5fb7007..b429506 100644 (file)
--- a/Documentation/devicetree/bindings/leds/common.yaml
+++ b/Documentation/devicetree/bindings/leds/common.yaml
@@ -191,6 +191,8 @@ properties:
       each of them having its own LED assigned (assuming they are not
       hardwired). In such cases this property should contain phandle(s) of
       related source device(s).
+      Another example is a GPIO line that will be monitored and mirror the
+      state of the line (with or without inversion flags) to the LED.
       In many cases LED can be related to more than one device (e.g. one USB LED
       vs. multiple USB ports). Each source should be represented by a node in
       the device tree and be referenced by a phandle and a set of phandle