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65 lines
1.8 KiB
65 lines
1.8 KiB
* Texas Instruments - LM3692x Highly Efficient White LED Driver |
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The LM3692x is an ultra-compact, highly efficient, |
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white-LED driver designed for LCD display backlighting. |
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The main difference between the LM36922 and LM36923 is the number of |
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LED strings it supports. The LM36922 supports two strings while the LM36923 |
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supports three strings. |
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Required properties: |
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- compatible: |
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"ti,lm36922" |
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"ti,lm36923" |
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- reg : I2C slave address |
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- #address-cells : 1 |
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- #size-cells : 0 |
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Optional properties: |
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- enable-gpios : gpio pin to enable/disable the device. |
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- vled-supply : LED supply |
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- ti,ovp-microvolt: Overvoltage protection in |
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micro-volt, can be 17000000, 21000000, 25000000 or |
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29000000. If ti,ovp-microvolt is not specified it |
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defaults to 29000000. |
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Required child properties: |
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- reg : 0 - Will enable all LED sync paths |
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1 - Will enable the LED1 sync |
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2 - Will enable the LED2 sync |
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3 - Will enable the LED3 sync (LM36923 only) |
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Optional child properties: |
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- function : see Documentation/devicetree/bindings/leds/common.txt |
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- color : see Documentation/devicetree/bindings/leds/common.txt |
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- label : see Documentation/devicetree/bindings/leds/common.txt (deprecated) |
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- linux,default-trigger : |
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see Documentation/devicetree/bindings/leds/common.txt |
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- led-max-microamp : |
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see Documentation/devicetree/bindings/leds/common.txt |
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Example: |
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#include <dt-bindings/leds/common.h> |
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led-controller@36 { |
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compatible = "ti,lm3692x"; |
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reg = <0x36>; |
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#address-cells = <1>; |
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#size-cells = <0>; |
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enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; |
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vled-supply = <&vbatt>; |
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ti,ovp-microvolt = <29000000>; |
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led@0 { |
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reg = <0>; |
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function = LED_FUNCTION_BACKLIGHT; |
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color = <LED_COLOR_ID_WHITE>; |
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linux,default-trigger = "backlight"; |
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led-max-microamp = <20000>; |
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}; |
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} |
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For more product information please see the link below: |
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https://www.ti.com/lit/ds/snvsa29/snvsa29.pdf
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