162306a36Sopenharmony_ci* Elan eKTF2127 I2C touchscreen controller 262306a36Sopenharmony_ci 362306a36Sopenharmony_ciRequired properties: 462306a36Sopenharmony_ci - compatible : "elan,ektf2127" or "elan,ektf2132" 562306a36Sopenharmony_ci - reg : I2C slave address of the chip (0x40) 662306a36Sopenharmony_ci - interrupts : interrupt specification for the ektf2127 interrupt 762306a36Sopenharmony_ci - power-gpios : GPIO specification for the pin connected to the 862306a36Sopenharmony_ci ektf2127's wake input. This needs to be driven high 962306a36Sopenharmony_ci to take ektf2127 out of its low power state 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ciFor additional optional properties see: touchscreen.txt 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ciExample: 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_cii2c@00000000 { 1662306a36Sopenharmony_ci ektf2127: touchscreen@15 { 1762306a36Sopenharmony_ci compatible = "elan,ektf2127"; 1862306a36Sopenharmony_ci reg = <0x15>; 1962306a36Sopenharmony_ci interrupt-parent = <&pio>; 2062306a36Sopenharmony_ci interrupts = <6 11 IRQ_TYPE_EDGE_FALLING> 2162306a36Sopenharmony_ci power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; 2262306a36Sopenharmony_ci touchscreen-inverted-x; 2362306a36Sopenharmony_ci touchscreen-swapped-x-y; 2462306a36Sopenharmony_ci }; 2562306a36Sopenharmony_ci}; 26