Merge tag 'pidfd-updates-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/braun...
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / leds / irled / spi-ir-led.txt
1 Device tree bindings for IR LED connected through SPI bus which is used as
2 remote controller.
3
4 The IR LED switch is connected to the MOSI line of the SPI device and the data
5 are delivered thourgh that.
6
7 Required properties:
8         - compatible: should be "ir-spi-led".
9
10 Optional properties:
11         - duty-cycle: 8 bit balue that represents the percentage of one period
12           in which the signal is active.  It can be 50, 60, 70, 75, 80 or 90.
13         - led-active-low: boolean value that specifies whether the output is
14           negated with a NOT gate.
15         - power-supply: specifies the power source. It can either be a regulator
16           or a gpio which enables a regulator, i.e. a regulator-fixed as
17           described in
18           Documentation/devicetree/bindings/regulator/fixed-regulator.yaml
19
20 Example:
21
22         irled@0 {
23                 compatible = "ir-spi-led";
24                 reg = <0x0>;
25                 spi-max-frequency = <5000000>;
26                 power-supply = <&vdd_led>;
27                 led-active-low;
28                 duty-cycle = /bits/ 8 <60>;
29         };