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dt: bindings: lm3692x: Add bindings for lm3692x LED driver
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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>
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Dan Murphy authored and Jacek Anaszewski committed Jan 8, 2018
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49 changes: 49 additions & 0 deletions Documentation/devicetree/bindings/leds/leds-lm3692x.txt
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* 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

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