Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) * Texas Instruments - LM3697 Highly Efficient White LED Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) The LM3697 11-bit LED driver provides high-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) performance backlight dimming for 1, 2, or 3 series
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) LED strings while delivering up to 90% efficiency.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) This device is suitable for display and keypad lighting
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) Required properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	- compatible:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 		"ti,lm3697"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	- reg :  I2C slave address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	- #address-cells : 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	- #size-cells : 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) Optional properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	- enable-gpios : GPIO pin to enable/disable the device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	- vled-supply : LED supply
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) Required child properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	- reg : 0 - LED is Controlled by bank A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		1 - LED is Controlled by bank B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	- led-sources : Indicates which HVLED string is associated to which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 			control bank.  This is a zero based property so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 			HVLED1 = 0, HVLED2 = 1, HVLED3 = 2.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 			Additional information is contained
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 			in Documentation/devicetree/bindings/leds/common.txt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) Optional child properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	- ti,brightness-resolution - see Documentation/devicetree/bindings/mfd/ti-lmu.txt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	- ramp-up-us: see Documentation/devicetree/bindings/mfd/ti-lmu.txt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	- ramp-down-us: see Documentation/devicetree/bindings/mfd/ti-lmu.txt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	- label : see Documentation/devicetree/bindings/leds/common.txt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	- linux,default-trigger :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	   see Documentation/devicetree/bindings/leds/common.txt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) Example:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) HVLED string 1 and 3 are controlled by control bank A and HVLED 2 string is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) controlled by control bank B.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) led-controller@36 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	compatible = "ti,lm3697";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	#address-cells = <1>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	#size-cells = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	reg = <0x36>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	vled-supply = <&vbatt>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	led@0 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 		reg = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		led-sources = <0 2>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 		ti,brightness-resolution = <2047>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		ramp-up-us = <5000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 		ramp-down-us = <1000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 		label = "white:first_backlight_cluster";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 		linux,default-trigger = "backlight";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	led@1 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 		reg = <1>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 		led-sources = <1>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 		ti,brightness-resolution = <255>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 		ramp-up-us = <500>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 		ramp-down-us = <1000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 		label = "white:second_backlight_cluster";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 		linux,default-trigger = "backlight";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) For more product information please see the link below:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) https://www.ti.com/lit/ds/symlink/lm3697.pdf