LEDs connected to is31fl319x LED controller chip
|
|
Required properties:
|
- compatible : Should be any of
|
"issi,is31fl3190"
|
"issi,is31fl3191"
|
"issi,is31fl3193"
|
"issi,is31fl3196"
|
"issi,is31fl3199"
|
"si-en,sn3199".
|
- #address-cells: Must be 1.
|
- #size-cells: Must be 0.
|
- reg: 0x64, 0x65, 0x66, or 0x67.
|
|
Optional properties:
|
- audio-gain-db : audio gain selection for external analog modulation input.
|
Valid values: 0 - 21, step by 3 (rounded down)
|
Default: 0
|
|
Each led is represented as a sub-node of the issi,is31fl319x device.
|
There can be less leds subnodes than the chip can support but not more.
|
|
Required led sub-node properties:
|
- reg : number of LED line
|
Valid values: 1 - number of leds supported by the chip variant.
|
|
Optional led sub-node properties:
|
- label : see Documentation/devicetree/bindings/leds/common.txt.
|
- linux,default-trigger :
|
see Documentation/devicetree/bindings/leds/common.txt.
|
- led-max-microamp : (optional)
|
Valid values: 5000 - 40000, step by 5000 (rounded down)
|
Default: 20000 (20 mA)
|
Note: a driver will take the lowest of all led limits since the
|
chip has a single global setting. The lowest value will be chosen
|
due to the PWM specificity, where lower brightness is achieved
|
by reducing the dury-cycle of pulses and not the current, which
|
will always have its peak value equal to led-max-microamp.
|
|
Examples:
|
|
fancy_leds: leds@65 {
|
compatible = "issi,is31fl3196";
|
#address-cells = <1>;
|
#size-cells = <0>;
|
reg = <0x65>;
|
|
red_aux: led@1 {
|
label = "red:aux";
|
reg = <1>;
|
led-max-microamp = <10000>;
|
};
|
|
green_power: led@5 {
|
label = "green:power";
|
reg = <5>;
|
linux,default-trigger = "default-on";
|
};
|
};
|
