Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) * Texas Instruments LM36274 4-Channel LCD Backlight Driver w/Integrated Bias
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) The LM36274 is an integrated four-channel WLED driver and LCD bias supply.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) The backlight boost provides the power to bias four parallel LED strings with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) up to 29V total output voltage. The 11-bit LED current is programmable via
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) the I2C bus and/or controlled via a logic level PWM input from 60 uA to 30 mA.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) Parent device properties are documented in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) Documentation/devicetree/bindings/mfd/ti-lmu.txt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) Regulator properties are documented in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) Documentation/devicetree/bindings/regulator/lm363x-regulator.txt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) Required backlight properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	- compatible:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 		"ti,lm36274-backlight"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	- reg : 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	- #address-cells : 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	- #size-cells : 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	- led-sources : Indicates which LED strings will be enabled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 			Values from 0-3, sources is 0 based so strings will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 			source value + 1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) Optional backlight properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	- label : see Documentation/devicetree/bindings/leds/common.txt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	- linux,default-trigger :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	   see 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) Example:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 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 32) controlled by control bank B.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) lm36274@11 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	compatible = "ti,lm36274";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	#address-cells = <1>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	#size-cells = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	reg = <0x11>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	regulators {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 		#address-cells = <1>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		#size-cells = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		compatible = "ti,lm363x-regulator";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		enable-gpios = <&pioC 0 GPIO_ACTIVE_HIGH>,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 			       <&pioC 1 GPIO_ACTIVE_HIGH>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		vboost {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 			regulator-name = "lcd_boost";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 			regulator-min-microvolt = <4000000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 			regulator-max-microvolt = <7150000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 			regulator-always-on;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 		vpos {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 			regulator-name = "lcd_vpos";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 			regulator-min-microvolt = <4000000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 			regulator-max-microvolt = <6500000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 		};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 		vneg {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 			regulator-name = "lcd_vneg";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 			regulator-min-microvolt = <4000000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 			regulator-max-microvolt = <6500000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 		};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 	backlight {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 		#address-cells = <1>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 		#size-cells = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 		compatible = "ti,lm36274-backlight";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 		led@0 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 			reg = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 			led-sources = <0 2>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 			label = "white:backlight_cluster";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 			linux,default-trigger = "backlight";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 		};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) For more product information please see the link below:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) https://www.ti.com/lit/ds/symlink/lm36274.pdf