Documentation/devicetree/bindings/leds/leds-pca9532.txt

   1 *NXP - pca9532 PWM LED Driver
   2
   3 The PCA9532 family is SMBus I/O expander optimized for dimming LEDs.
   4 The PWM support 256 steps.
   5
   6 Required properties:
   7         - compatible:
   8                 "nxp,pca9530"
   9                 "nxp,pca9531"
  10                 "nxp,pca9532"
  11                 "nxp,pca9533"
  12         - reg -  I2C slave address
  13
  14 Each led is represented as a sub-node of the nxp,pca9530.
  15
  16 Optional sub-node properties:
  17         - label: see Documentation/devicetree/bindings/leds/common.txt
  18         - type: Output configuration, see dt-bindings/leds/leds-pca9532.h (default NONE)
  19         - linux,default-trigger: see Documentation/devicetree/bindings/leds/common.txt
  20         - default-state: see Documentation/devicetree/bindings/leds/common.txt
  21           This property is only valid for sub-nodes of type <PCA9532_TYPE_LED>.
  22
  23 Example:
  24   #include <dt-bindings/leds/leds-pca9532.h>
  25
  26   leds: pca9530@60 {
  27     compatible = "nxp,pca9530";
  28     reg = <0x60>;
  29
  30     red-power {
  31       label = "pca:red:power";
  32       type = <PCA9532_TYPE_LED>;
  33     };
  34     green-power {
  35       label = "pca:green:power";
  36       type = <PCA9532_TYPE_LED>;
  37     };
  38     kernel-booting {
  39       type = <PCA9532_TYPE_LED>;
  40       default-state = "on";
  41     };
  42     sys-stat {
  43       type = <PCA9532_TYPE_LED>;
  44       default-state = "keep"; // don't touch, was set by U-Boot
  45     };
  46   };
  47
  48 For more product information please see the link below:
  49 http://nxp.com/documents/data_sheet/PCA9532.pdf