1 * NXP - pca955x LED driver
3 The PCA955x family of chips are I2C LED blinkers whose pins not used
4 to control LEDs can be used as general purpose I/Os. The GPIO pins can
5 be input or output, and output pins can also be pulse-width controlled.
8 - compatible : should be one of :
14 - #address-cells: must be 1
15 - #size-cells: must be 0
16 - reg: I2C slave address. depends on the model.
19 - gpio-controller: allows pins to be used as GPIOs.
20 - #gpio-cells: must be 2.
21 - gpio-line-names: define the names of the GPIO lines
23 LED sub-node properties:
24 - reg : number of LED line.
25 from 0 to 1 for the pca9550
26 from 0 to 7 for the pca9551
27 from 0 to 15 for the pca9552
28 from 0 to 3 for the pca9553
29 - type: (optional) either
33 see dt-bindings/leds/leds-pca955x.h (default to LED)
35 see Documentation/devicetree/bindings/leds/common.txt
36 - linux,default-trigger : (optional)
37 see Documentation/devicetree/bindings/leds/common.txt
42 compatible = "nxp,pca9552";
49 gpio-line-names = "GPIO12", "GPIO13", "GPIO14", "GPIO15";
53 type = <PCA955X_TYPE_GPIO>;
57 type = <PCA955X_TYPE_GPIO>;
61 type = <PCA955X_TYPE_GPIO>;
65 type = <PCA955X_TYPE_GPIO>;
70 linux,default-trigger = "default-on";
72 type = <PCA955X_TYPE_LED>;
75 label = "green:power";
77 type = <PCA955X_TYPE_LED>;
80 label = "pca9552:yellow";
82 type = <PCA955X_TYPE_LED>;
85 label = "pca9552:white";
87 type = <PCA955X_TYPE_LED>;