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 :
13 - #address-cells: must be 1
14 - #size-cells: must be 0
15 - reg: I2C slave address. depends on the model.
18 - gpio-controller: allows pins to be used as GPIOs.
19 - #gpio-cells: must be 2.
20 - gpio-line-names: define the names of the GPIO lines
22 LED sub-node properties:
23 - reg : number of LED line.
24 from 0 to 1 for the pca9550
25 from 0 to 7 for the pca9551
26 from 0 to 15 for the pca9552
27 from 0 to 3 for the pca9553
28 - type: (optional) either
32 see dt-bindings/leds/leds-pca955x.h (default to LED)
34 see Documentation/devicetree/bindings/leds/common.txt
35 - linux,default-trigger : (optional)
36 see Documentation/devicetree/bindings/leds/common.txt
41 compatible = "nxp,pca9552";
48 gpio-line-names = "GPIO12", "GPIO13", "GPIO14", "GPIO15";
52 type = <PCA955X_TYPE_GPIO>;
56 type = <PCA955X_TYPE_GPIO>;
60 type = <PCA955X_TYPE_GPIO>;
64 type = <PCA955X_TYPE_GPIO>;
69 linux,default-trigger = "default-on";
71 type = <PCA955X_TYPE_LED>;
74 label = "green:power";
76 type = <PCA955X_TYPE_LED>;
79 label = "pca9552:yellow";
81 type = <PCA955X_TYPE_LED>;
84 label = "pca9552:white";
86 type = <PCA955X_TYPE_LED>;