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📁 ..
📄 ams,as3645a.txt(2.44 KB)
📁 backlight
📄 common.txt(38 B)
📄 common.yaml(7.81 KB)
📄 cznic,turris-omnia-leds.yaml(2.17 KB)
📁 irled
📄 leds-aat1290.txt(2.86 KB)
📄 leds-an30259a.txt(1.33 KB)
📄 leds-aw2013.yaml(1.86 KB)
📄 leds-bcm6328.txt(8.25 KB)
📄 leds-bcm6358.txt(2.97 KB)
📄 leds-class-multicolor.yaml(1.22 KB)
📄 leds-cpcap.txt(939 B)
📄 leds-cr0014114.txt(1.37 KB)
📄 leds-el15203000.txt(1.69 KB)
📄 leds-gpio.yaml(2.04 KB)
📄 leds-is31fl319x.txt(1.63 KB)
📄 leds-is31fl32xx.txt(1.14 KB)
📄 leds-ktd2692.txt(1.65 KB)
📄 leds-lm3532.txt(3.59 KB)
📄 leds-lm3601x.txt(1.34 KB)
📄 leds-lm36274.txt(2.18 KB)
📄 leds-lm3692x.txt(1.84 KB)
📄 leds-lm3697.txt(2.03 KB)
📄 leds-lp55xx.txt(4.26 KB)
📄 leds-lp55xx.yaml(5.57 KB)
📄 leds-lp8860.txt(1.26 KB)
📄 leds-lt3593.txt(1.13 KB)
📄 leds-max77650.yaml(1.03 KB)
📄 leds-mt6323.txt(1.62 KB)
📄 leds-netxbig.txt(2.3 KB)
📄 leds-ns2.txt(1.05 KB)
📄 leds-pca9532.txt(1.31 KB)
📄 leds-pca955x.txt(1.88 KB)
📄 leds-pm8058.txt(1.96 KB)
📄 leds-powernv.txt(613 B)
📄 leds-pwm.txt(1.36 KB)
📄 leds-sc27xx-bltc.txt(993 B)
📄 leds-sgm3140.yaml(1.42 KB)
📄 leds-spi-byte.txt(1.25 KB)
📄 leds-tlc591xx.txt(786 B)
📄 leds-trigger-pattern.txt(1.96 KB)
📄 pca963x.txt(1.44 KB)
📄 register-bit-led.txt(2.3 KB)
📄 rohm,bd71828-leds.yaml(1.42 KB)
📄 tca6507.txt(1.01 KB)
📄 trigger-source.yaml(646 B)

Editing: leds-lm3697.txt

* Texas Instruments - LM3697 Highly Efficient White LED Driver

The LM3697 11-bit LED driver provides high-
performance backlight dimming for 1, 2, or 3 series
LED strings while delivering up to 90% efficiency.

This device is suitable for display and keypad lighting

Required properties:
	- compatible:
		"ti,lm3697"
	- 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 - LED is Controlled by bank A
		1 - LED is Controlled by bank B
	- led-sources : Indicates which HVLED string is associated to which
			control bank.  This is a zero based property so
			HVLED1 = 0, HVLED2 = 1, HVLED3 = 2.
			Additional information is contained
			in Documentation/devicetree/bindings/leds/common.txt

Optional child properties:
	- ti,brightness-resolution - see Documentation/devicetree/bindings/mfd/ti-lmu.txt
	- ramp-up-us: see Documentation/devicetree/bindings/mfd/ti-lmu.txt
	- ramp-down-us: see Documentation/devicetree/bindings/mfd/ti-lmu.txt
	- label : see Documentation/devicetree/bindings/leds/common.txt
	- linux,default-trigger :
	   see Documentation/devicetree/bindings/leds/common.txt

Example:

HVLED string 1 and 3 are controlled by control bank A and HVLED 2 string is
controlled by control bank B.

led-controller@36 {
	compatible = "ti,lm3697";
	#address-cells = <1>;
	#size-cells = <0>;
	reg = <0x36>;

enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
	vled-supply = <&vbatt>;

led@0 {
		reg = <0>;
		led-sources = <0 2>;
		ti,brightness-resolution = <2047>;
		ramp-up-us = <5000>;
		ramp-down-us = <1000>;
		label = "white:first_backlight_cluster";
		linux,default-trigger = "backlight";
	};

led@1 {
		reg = <1>;
		led-sources = <1>;
		ti,brightness-resolution = <255>;
		ramp-up-us = <500>;
		ramp-down-us = <1000>;
		label = "white:second_backlight_cluster";
		linux,default-trigger = "backlight";
	};
}

For more product information please see the link below:
https://www.ti.com/lit/ds/symlink/lm3697.pdf

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