This patch add the bindings document for LT3593 LED drivers.
The binding is kept consistent with other LED driver bindings in that it
stores all the LED-specific properties in its own subnode. As the hardware
only supports one channel, there can consequently only be one sub-node.
Signed-off-by: Daniel Mack <daniel@xxxxxxxxxx>
---
.../devicetree/bindings/leds/leds-lt3593.txt | 34 +++++++++++++++++++
1 file changed, 34 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-lt3593.txt
diff --git a/Documentation/devicetree/bindings/leds/leds-lt3593.txt b/Documentation/devicetree/bindings/leds/leds-lt3593.txt
new file mode 100644
index 000000000000..b31d427448f8
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-lt3593.txt
@@ -0,0 +1,34 @@
+Bindings for Linear Technologies LT3593 LED controller
+
+Required properties:
+- compatible: Should be "lltc,lt3593".
+
+The hardware supports only one LED. The properties of this LED are
+configured in a sub-node in the device node.
+
+Required sub-node properties:
+- gpios: A handle to the GPIO that is connected to the 'CTRL'
+ pin of the chip.
+
+Optional sub-node properties:
+- label: A label for the LED. If none is given, the LED will be
+ named "lt3595::".
+- linux,default-trigger: The default trigger for the LED.
+ See Documentation/devicetree/bindings/leds/common.txt
+- default-state: The initial state of the LED.
+ See Documentation/devicetree/bindings/leds/common.txt
+
+If multiple chips of this type are found in a design, each one needs to
+be handled by its own device node.
+
+Example:
+
+led-controller {
+ compatible = "lltc,lt3593";
+
+ led {
+ label = "white:backlight";
+ gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ };
+};
--
2.17.1
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