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