1* Toradex Colibri VF50 Touchscreen driver 2 3Required Properties: 4- compatible must be toradex,vf50-touchscreen 5- io-channels: adc channels being used by the Colibri VF50 module 6- xp-gpios: FET gate driver for input of X+ 7- xm-gpios: FET gate driver for input of X- 8- yp-gpios: FET gate driver for input of Y+ 9- ym-gpios: FET gate driver for input of Y- 10- interrupts: pen irq interrupt for touch detection 11- pinctrl-names: "idle", "default", "gpios" 12- pinctrl-0: pinctrl node for pen/touch detection state pinmux 13- pinctrl-1: pinctrl node for X/Y and pressure measurement (ADC) state pinmux 14- pinctrl-2: pinctrl node for gpios functioning as FET gate drivers 15- vf50-ts-min-pressure: pressure level at which to stop measuring X/Y values 16 17Example: 18 19 touchctrl: vf50_touchctrl { 20 compatible = "toradex,vf50-touchscreen"; 21 io-channels = <&adc1 0>,<&adc0 0>, 22 <&adc0 1>,<&adc1 2>; 23 xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>; 24 xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>; 25 yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>; 26 ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>; 27 interrupt-parent = <&gpio0>; 28 interrupts = <8 IRQ_TYPE_LEVEL_LOW>; 29 pinctrl-names = "idle","default","gpios"; 30 pinctrl-0 = <&pinctrl_touchctrl_idle>; 31 pinctrl-1 = <&pinctrl_touchctrl_default>; 32 pinctrl-2 = <&pinctrl_touchctrl_gpios>; 33 vf50-ts-min-pressure = <200>; 34 }; 35