| * 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- | |
| - interrupt-parent: phandle for the interrupt controller | |
| - 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>; | |
| }; |