Lines Matching +full:over +full:- +full:current +full:- +full:active +full:- +full:low
1 * Texas Instruments - lm3532 White LED driver with ambient light sensing
4 The LM3532 provides the 3 high-voltage, low-side current sinks. The device is
5 programmable over an I2C-compatible interface and has independent
6 current control for all three channels. The adaptive current regulation
7 method allows for different LED currents in each current sink thus allowing
11 each with 32 internal voltage setting resistors, 8-bit logarithmic and linear
16 - compatible : "ti,lm3532"
17 - reg : I2C slave address
18 - #address-cells : 1
19 - #size-cells : 0
22 - enable-gpios : gpio pin to enable (active high)/disable the device.
23 - ramp-up-us - The Run time ramp rates/step are from one current
24 set-point to another after the device has reached its
25 initial target set point from turn-on
26 - ramp-down-us - The Run time ramp rates/step are from one current
27 set-point to another after the device has reached its
28 initial target set point from turn-on
29 Range for ramp settings: 8us - 65536us
32 - ti,als-vmin - Minimum ALS voltage defined in Volts
33 - ti,als-vmax - Maximum ALS voltage defined in Volts
36 - ti,als1-imp-sel - ALS1 impedance resistor selection in Ohms
37 - ti,als2-imp-sel - ALS2 impedance resistor selection in Ohms
38 Range for impedance select: 37000 Ohms - 1190 Ohms
41 - ti,als-avrg-time-us - Determines the length of time the device needs to
44 Range: 17920us - 2293760us
45 - ti,als-input-mode - Determines how the device uses the attached ALS
47 0x00 - ALS1 and ALS2 input average
48 0x01 - ALS1 Input
49 0x02 - ALS2 Input
50 0x03 - Max of ALS1 and ALS2
53 - reg : Indicates control bank the LED string is controlled by
54 - led-sources : see Documentation/devicetree/bindings/leds/common.txt
55 - ti,led-mode : Defines if the LED strings are manually controlled or
57 0x00 - LED strings are I2C controlled via full scale
59 0x01 - LED strings are ALS controlled
62 - label : see Documentation/devicetree/bindings/leds/common.txt
63 - linux,default-trigger :
65 - led-max-microamp : Defines the full scale current value for each control
66 bank. The range is from 5000uA-29800uA in increments
70 led-controller@38 {
72 #address-cells = <1>;
73 #size-cells = <0>;
76 enable-gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
77 ramp-up-us = <1024>;
78 ramp-down-us = <65536>;
80 ti,als-vmin = <0>;
81 ti,als-vmax = <2000>;
82 ti,als1-imp-sel = <4110>;
83 ti,als2-imp-sel = <2180>;
84 ti,als-avrg-time-us = <17920>;
85 ti,als-input-mode = <0x00>;
89 led-sources = <2>;
90 ti,led-mode = <1>;
91 led-max-microamp = <21800>;
93 linux,default-trigger = "backlight";
98 led-sources = <1>;
99 ti,led-mode = <0>;