1// SPDX-License-Identifier: (GPL-2.0 OR MIT) 2// 3// Copyright (C) 2020 Pengutronix, Ulrich Oelmann <kernel@pengutronix.de> 4 5/ { 6 touchscreen { 7 compatible = "resistive-adc-touch"; 8 io-channels = <&adc_ts 1>, <&adc_ts 3>, <&adc_ts 4>, <&adc_ts 5>; 9 io-channel-names = "y", "z1", "z2", "x"; 10 touchscreen-min-pressure = <65000>; 11 touchscreen-inverted-y; 12 touchscreen-swapped-x-y; 13 touchscreen-x-plate-ohms = <300>; 14 touchscreen-y-plate-ohms = <800>; 15 }; 16}; 17 18&ecspi4 { 19 pinctrl-names = "default"; 20 pinctrl-0 = <&pinctrl_ecspi4>; 21 cs-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>; 22 status = "okay"; 23 24 adc_ts: adc@0 { 25 compatible = "ti,tsc2046e-adc"; 26 reg = <0>; 27 pinctrl-0 = <&pinctrl_touch>; 28 pinctrl-names ="default"; 29 spi-max-frequency = <1000000>; 30 interrupts-extended = <&gpio3 19 IRQ_TYPE_LEVEL_LOW>; 31 #io-channel-cells = <1>; 32 33 #address-cells = <1>; 34 #size-cells = <0>; 35 36 channel@1 { 37 reg = <1>; 38 settling-time-us = <700>; 39 oversampling-ratio = <5>; 40 }; 41 42 channel@3 { 43 reg = <3>; 44 settling-time-us = <700>; 45 oversampling-ratio = <5>; 46 }; 47 48 channel@4 { 49 reg = <4>; 50 settling-time-us = <700>; 51 oversampling-ratio = <5>; 52 }; 53 54 channel@5 { 55 reg = <5>; 56 settling-time-us = <700>; 57 oversampling-ratio = <5>; 58 }; 59 }; 60}; 61 62&iomuxc { 63 pinctrl_ecspi4: ecspi4grp { 64 fsl,pins = < 65 MX6QDL_PAD_EIM_D28__ECSPI4_MOSI 0x100b1 66 MX6QDL_PAD_EIM_D22__ECSPI4_MISO 0x000b1 67 MX6QDL_PAD_EIM_D21__ECSPI4_SCLK 0x000b1 68 /* *no* external pull up */ 69 MX6QDL_PAD_EIM_D20__GPIO3_IO20 0x40000058 70 >; 71 }; 72 73 pinctrl_touch: touchgrp { 74 fsl,pins = < 75 /* external pull up */ 76 MX6QDL_PAD_EIM_D19__GPIO3_IO19 0x10040 77 >; 78 }; 79}; 80