dt: bindings: lm3692x: Add bindings for lm3692x LED driver

This adds the devicetree bindings for the LM3692x
I2C LED string driver.

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/leds/leds-lm3692x.txt b/Documentation/devicetree/bindings/leds/leds-lm3692x.txt
new file mode 100644
index 000000000000..6c9074f84a51
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+++ b/Documentation/devicetree/bindings/leds/leds-lm3692x.txt
@@ -0,0 +1,49 @@
+* Texas Instruments - LM3692x Highly Efficient White LED Driver
+
+The LM3692x is an ultra-compact, highly efficient,
+white-LED driver designed for LCD display backlighting.
+
+The main difference between the LM36922 and LM36923 is the number of
+LED strings it supports.  The LM36922 supports two strings while the LM36923
+supports three strings.
+
+Required properties:
+        - compatible:
+                "ti,lm36922"
+                "ti,lm36923"
+        - reg :  I2C slave address
+        - #address-cells : 1
+        - #size-cells : 0
+
+Optional properties:
+        - enable-gpios : gpio pin to enable/disable the device.
+        - vled-supply : LED supply
+
+Required child properties:
+        - reg : 0
+
+Optional child properties:
+        - label : see Documentation/devicetree/bindings/leds/common.txt
+        - linux,default-trigger :
+           see Documentation/devicetree/bindings/leds/common.txt
+
+Example:
+
+led-controller@36 {
+        compatible = "ti,lm3692x";
+        reg = <0x36>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+        vled-supply = <&vbatt>;
+
+        led@0 {
+                reg = <0>;
+                label = "white:backlight_cluster";
+                linux,default-trigger = "backlight";
+        };
+}
+
+For more product information please see the link below:
+http://www.ti.com/lit/ds/snvsa29/snvsa29.pdf