arch/arm/boot/dts/imx6qdl-skov-cpu-revc.dtsi

   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 };