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* Toradex Colibri VF50 Touchscreen driver
Required Properties:
- compatible must be toradex,vf50-touchctrl
- 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-
- pen-detect-gpios: GPIO for pen detect irq
- pen-pullup-gpios: GPIO for pen pullup
- pinctrl-names: "idle", "default", "gpios"
- pinctrl-0: pinctrl node for idle state gpio pinmux
- pinctrl-1: pinctrl node for touch detection state pinmux
- pinctrl-2: pinctrl node for gpios functioning as FET gate drivers
Example:
touchctrl: vf50_touchctrl {
compatible = "toradex,vf50-touchctrl";
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>;
pen-detect-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
pen-pullup-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
pinctrl-names = "idle","default","gpios";
pinctrl-0 = <&pinctrl_touchctrl_idle>;
pinctrl-1 = <&pinctrl_touchctrl_default>;
pinctrl-2 = <&pinctrl_touchctrl_gpios>;
status = "disabled";
};
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