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-* Freescale i.MX6UL Touch Controller
-
-Required properties:
-- compatible: must be "fsl,imx6ul-tsc".
-- reg: this touch controller address and the ADC2 address.
-- interrupts: the interrupt of this touch controller and ADC2.
-- clocks: the root clock of touch controller and ADC2.
-- clock-names; must be "tsc" and "adc".
-- xnur-gpio: the X- gpio this controller connect to.
- This xnur-gpio returns to low once the finger leave the touch screen (The
- last touch event the touch controller capture).
-
-Optional properties:
-- measure-delay-time: the value of measure delay time.
- Before X-axis or Y-axis measurement, the screen need some time before
- even potential distribution ready.
- This value depends on the touch screen.
-- pre-charge-time: the touch screen need some time to precharge.
- This value depends on the touch screen.
-- touchscreen-average-samples: Number of data samples which are averaged for
- each read. Valid values are 1, 4, 8, 16 and 32.
-
-Example:
- tsc: tsc@2040000 {
- compatible = "fsl,imx6ul-tsc";
- reg = <0x02040000 0x4000>, <0x0219c000 0x4000>;
- interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX6UL_CLK_IPG>,
- <&clks IMX6UL_CLK_ADC2>;
- clock-names = "tsc", "adc";
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_tsc>;
- xnur-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
- measure-delay-time = <0xfff>;
- pre-charge-time = <0xffff>;
- touchscreen-average-samples = <32>;
- };