1 files changed, 15 insertions, 1 deletions

diff --git a/Documentation/devicetree/bindings/leds/common.txt b/Documentation/devicetree/bindings/leds/common.txt
index a2c3f7abe718..34811c57db69 100644
--- a/Documentation/devicetree/bindings/leds/common.txt
+++ b/Documentation/devicetree/bindings/leds/common.txt
@@ -1,6 +1,19 @@
 Common leds properties.
 
+LED and flash LED devices provide the same basic functionality as current
+regulators, but extended with LED and flash LED specific features like
+blinking patterns, flash timeout, flash faults and external flash strobe mode.
+
+Many LED devices expose more than one current output that can be connected
+to one or more discrete LED component. Since the arrangement of connections
+can influence the way of the LED device initialization, the LED components
+have to be tightly coupled with the LED device binding. They are represented
+by child nodes of the parent LED device binding.
+
 Optional properties for child nodes:
+- led-sources : List of device current outputs the LED is connected to. The
+                outputs are identified by the numbers that must be defined
+                in the LED device binding documentation.
 - label : The label for this LED.  If omitted, the label is
   taken from the node name (excluding the unit address).
 
@@ -33,7 +46,8 @@ system-status {
 
 camera-flash {
         label = "Flash";
+        led-sources = <0>, <1>;
         max-microamp = <50000>;
         flash-max-microamp = <320000>;
         flash-timeout-us = <500000>;
-}
+};