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authorJacek Anaszewski <[email protected]>2015-01-27 00:07:08 -0800
committerBryan Wu <[email protected]>2015-01-29 14:53:07 -0800
commit4552d2ee3ccb50e2926c53f58c3d7c4c3df9568c (patch)
tree628245c92eeb9de072d6cf157c6f294228d7a01b
parent7aea8389a77abf9fde254aca2434a605c7704f58 (diff)
DT: leds: Add led-sources property
Add a property for defining device outputs the LED represented by the DT child node is connected to. Signed-off-by: Jacek Anaszewski <[email protected]> Acked-by: Kyungmin Park <[email protected]> Cc: Bryan Wu <[email protected]> Cc: Richard Purdie <[email protected]> Cc: Pawel Moll <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Ian Campbell <[email protected]> Cc: Kumar Gala <[email protected]> Cc: [email protected] Acked-by: Pavel Machek <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Bryan Wu <[email protected]>
-rw-r--r--Documentation/devicetree/bindings/leds/common.txt16
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>;
-}
+};