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- // SPDX-License-Identifier: (GPL-2.0 OR MIT)
- //
- // Copyright (C) 2020 Pengutronix, Ulrich Oelmann <[email protected]>
- / {
- touchscreen {
- compatible = "resistive-adc-touch";
- io-channels = <&adc_ts 1>, <&adc_ts 3>, <&adc_ts 4>, <&adc_ts 5>;
- io-channel-names = "y", "z1", "z2", "x";
- touchscreen-min-pressure = <65000>;
- touchscreen-inverted-y;
- touchscreen-swapped-x-y;
- touchscreen-x-plate-ohms = <300>;
- touchscreen-y-plate-ohms = <800>;
- };
- };
- &ecspi4 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_ecspi4>;
- cs-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>;
- status = "okay";
- adc_ts: adc@0 {
- compatible = "ti,tsc2046e-adc";
- reg = <0>;
- pinctrl-0 = <&pinctrl_touch>;
- pinctrl-names ="default";
- spi-max-frequency = <1000000>;
- interrupts-extended = <&gpio3 19 IRQ_TYPE_LEVEL_LOW>;
- #io-channel-cells = <1>;
- #address-cells = <1>;
- #size-cells = <0>;
- channel@1 {
- reg = <1>;
- settling-time-us = <700>;
- oversampling-ratio = <5>;
- };
- channel@3 {
- reg = <3>;
- settling-time-us = <700>;
- oversampling-ratio = <5>;
- };
- channel@4 {
- reg = <4>;
- settling-time-us = <700>;
- oversampling-ratio = <5>;
- };
- channel@5 {
- reg = <5>;
- settling-time-us = <700>;
- oversampling-ratio = <5>;
- };
- };
- };
- &iomuxc {
- pinctrl_ecspi4: ecspi4grp {
- fsl,pins = <
- MX6QDL_PAD_EIM_D28__ECSPI4_MOSI 0x100b1
- MX6QDL_PAD_EIM_D22__ECSPI4_MISO 0x000b1
- MX6QDL_PAD_EIM_D21__ECSPI4_SCLK 0x000b1
- /* *no* external pull up */
- MX6QDL_PAD_EIM_D20__GPIO3_IO20 0x40000058
- >;
- };
- pinctrl_touch: touchgrp {
- fsl,pins = <
- /* external pull up */
- MX6QDL_PAD_EIM_D19__GPIO3_IO19 0x10040
- >;
- };
- };
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