Documentation/devicetree/bindings/display/repaper.txt

   1 Pervasive Displays RePaper branded e-ink displays
   2
   3 Required properties:
   4 - compatible:           "pervasive,e1144cs021" for 1.44" display
   5                         "pervasive,e1190cs021" for 1.9" display
   6                         "pervasive,e2200cs021" for 2.0" display
   7                         "pervasive,e2271cs021" for 2.7" display
   8
   9 - panel-on-gpios:       Timing controller power control
  10 - discharge-gpios:      Discharge control
  11 - reset-gpios:          RESET pin
  12 - busy-gpios:           BUSY pin
  13
  14 Required property for e2271cs021:
  15 - border-gpios:         Border control
  16
  17 The node for this driver must be a child node of a SPI controller, hence
  18 all mandatory properties described in ../spi/spi-bus.txt must be specified.
  19
  20 Optional property:
  21 - pervasive,thermal-zone:       name of thermometer's thermal zone
  22
  23 Example:
  24
  25         display_temp: lm75@48 {
  26                 compatible = "lm75b";
  27                 reg = <0x48>;
  28                 #thermal-sensor-cells = <0>;
  29         };
  30
  31         thermal-zones {
  32                 display {
  33                         polling-delay-passive = <0>;
  34                         polling-delay = <0>;
  35                         thermal-sensors = <&display_temp>;
  36                 };
  37         };
  38
  39         papirus27@0{
  40                 compatible = "pervasive,e2271cs021";
  41                 reg = <0>;
  42
  43                 spi-max-frequency = <8000000>;
  44
  45                 panel-on-gpios = <&gpio 23 0>;
  46                 border-gpios = <&gpio 14 0>;
  47                 discharge-gpios = <&gpio 15 0>;
  48                 reset-gpios = <&gpio 24 0>;
  49                 busy-gpios = <&gpio 25 0>;
  50
  51                 pervasive,thermal-zone = "display";
  52         };