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// SPDX-License-Identifier: (GPL-2.0 OR MIT)
//
// Copyright (C) 2020 Pengutronix, Ulrich Oelmann <kernel@pengutronix.de>
/ {
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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