kernel/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt

   1 STMPE gpio
   2 ----------
   3
   4 Required properties:
   5  - compatible: "st,stmpe-gpio"
   6
   7 Optional properties:
   8  - st,norequest-mask: bitmask specifying which GPIOs should _not_ be requestable
   9    due to different usage (e.g. touch, keypad)
  10
  11 Node name must be stmpe_gpio and should be child node of stmpe node to which it
  12 belongs.
  13
  14 Example:
  15         stmpe_gpio {
  16                 compatible = "st,stmpe-gpio";
  17                 st,norequest-mask = <0x20>;     //gpio 5 can't be used
  18         };