4 - compatible : "st,stmpe-keypad"
5 - linux,keymap : See ./matrix-keymap.txt
8 - debounce-interval : Debouncing interval time in milliseconds
9 - st,scan-count : Scanning cycles elapsed before key data is updated
10 - st,no-autorepeat : If specified device will not autorepeat
15 compatible = "st,stmpe-keypad";
17 debounce-interval = <64>;
21 linux,keymap = <0x205006b