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- * Toradex Colibri VF50 Touchscreen driver
- Required Properties:
- - compatible must be toradex,vf50-touchscreen
- - io-channels: adc channels being used by the Colibri VF50 module
- - xp-gpios: FET gate driver for input of X+
- - xm-gpios: FET gate driver for input of X-
- - yp-gpios: FET gate driver for input of Y+
- - ym-gpios: FET gate driver for input of Y-
- - interrupts: pen irq interrupt for touch detection
- - pinctrl-names: "idle", "default", "gpios"
- - pinctrl-0: pinctrl node for pen/touch detection state pinmux
- - pinctrl-1: pinctrl node for X/Y and pressure measurement (ADC) state pinmux
- - pinctrl-2: pinctrl node for gpios functioning as FET gate drivers
- - vf50-ts-min-pressure: pressure level at which to stop measuring X/Y values
- Example:
- touchctrl: vf50_touchctrl {
- compatible = "toradex,vf50-touchscreen";
- io-channels = <&adc1 0>,<&adc0 0>,
- <&adc0 1>,<&adc1 2>;
- xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
- xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;
- yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
- ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
- interrupt-parent = <&gpio0>;
- interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
- pinctrl-names = "idle","default","gpios";
- pinctrl-0 = <&pinctrl_touchctrl_idle>;
- pinctrl-1 = <&pinctrl_touchctrl_default>;
- pinctrl-2 = <&pinctrl_touchctrl_gpios>;
- vf50-ts-min-pressure = <200>;
- };
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