linux/Documentation/devicetree/bindings/arm/nspire.txt
<<
>>
Prefs
   1TI-NSPIRE calculators
   2
   3Required properties:
   4- compatible: Compatible property value should contain "ti,nspire".
   5        CX models should have "ti,nspire-cx"
   6        Touchpad models should have "ti,nspire-tp"
   7        Clickpad models should have "ti,nspire-clp"
   8
   9Example:
  10
  11/ {
  12        model = "TI-NSPIRE CX";
  13        compatible = "ti,nspire-cx";
  14        ...
  15