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